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Friday, January 21, 2011
Thursday, January 13, 2011
Do u want to walk on the fluid?? Can't belive!! Read this and do....
A Non-Newtonian fluid is a fluid whose viscosity is variable based on applied stress. The most commonly known non-Newtonian fluid is cornstarch dissolved in water. Contrast with Newtonian fluids like water, whose behavior can be described exclusively by temperature and pressure, not the forces acting on it from second to second. Non-Newtonian fluids are fascinating substances that can be used to help us understand physics in more detail, in an exciting, hands-on way.
If you punch a bucket full of a shear thickening non-Newtonian fluid, the stress introduced by the incoming force causes the atoms in the fluid to rearrange such that it behaves like a solid. Your hand will not go through. If you shove your hand into the fluid slowly, however, it will penetrate successfully. If you pull your hand out abruptly, it will again behave like a solid, and you can literally pull a bucket of the fluid out of its container in this way.
A shear thinning non-Newtonian fluid behaves in the opposite way. In this type, the fluid becomes thinner, rather than thicker, when stress is applied. Also called pseudoplastic, examples of this type of non-Newtonian fluid include ketchup, toothpaste, and paint. The effect doesn't usually last for long in either type, continuing only as long as the stress is applied.
Non-Newtonian fluids help us understand the wide variety of fluids that exist in the physical world. Plastic solids, power-law fluids, viscoelastic fluids, and time-dependent viscosity fluids are others that exhibit complex and counterintuitive relationships between shear stress and viscosity/elasticity. However, non-Newtonian fluid is probably the most exciting to play with.
A search for non-Newtonian fluid on YouTube brings up some interesting results. On several game shows, hosts or contestants run across big vats of shear thickening non-Newtonian fluid, able to traverse them unless they stop - in which case they sink immediately. When combined with a oscillating plate, non-Newtonian fluids demonstrate other unusual properties, like protruding "fingers" and holes that persist after creating them. An oscillating plate applies stress on a periodic basis, rapidly changing the viscosity of the fluid and putting it in an odd middle ground between a liquid and a solid.
A practical application for shear thickening non-Newtonian fluids may be in body armor of the future. Since such fluids are usually flexible, they would allow soldiers to move freely when not under attack. But if confronted with a speeding bullet, they would quickly harder, performing like traditional armor. More research is necessary to see if non-Newtonian fluids are suitable for the military, but until then, it's sure fun to play with.
Source:
Adding some technical Stuff:
See the added video.The fluid is supporting the guy’s weight. But how is that possible? The Stokes equation for the shear-stress in a Newtonian fluid is this:
Which means, basically, that the shear-rate is proportional to the applied stress. The constant of proportionality, the viscosity, can be measured to be quite small. You wouldn’t be able to stand on water, for example; the viscosity isn’t nearly enough to support your weight. So what gives (or holds!)? How is the fellow walking on water?
The answer is to note that the guy isn’t ‘walking’ on water: he’s running. And when he walks slowly or stands still, he sinks. The reason our model can’t predict this is because, as is usually the case, the model we’re working with is incomplete. The fluid is non-Newtonian. In this particular instance, it’s called a dilatant or a shear-thickening fluid. A better model for this fluid is this:
The first term on the LHS is the same as that for a Newtonian fluid. The second term is what you would expect with a regular solid. Because this mixture has properties of both liquids and solids, it’s called a visco-elastic material. The model itself was proposed by Maxwell, and is named after him.
Now we see what happens. Because the rate of increase in the stress is much greater than the stress itself (this is when the guy is running), the fluid behaves like a solid, and can therefore support his weight. If, on the other hand, the guy stands still, the rate of increase of the stress is nil (or small), and the mixture starts to behave like a (fairly viscous, as you can see) liquid.
Good. Now that you know of the Maxwell model, you can explain why it is that people can break bones if they land the wrong way on water. To wit: divers are taught to go in arms (or legs) first, so that the rate of increase of stress isn’t too high when the torso gets to the water’s surface. Alternatively, you could fall flat on your back onto the water… you know, if you want a raw back that hurts like it’s been whipped!
Source:
If you punch a bucket full of a shear thickening non-Newtonian fluid, the stress introduced by the incoming force causes the atoms in the fluid to rearrange such that it behaves like a solid. Your hand will not go through. If you shove your hand into the fluid slowly, however, it will penetrate successfully. If you pull your hand out abruptly, it will again behave like a solid, and you can literally pull a bucket of the fluid out of its container in this way.
A shear thinning non-Newtonian fluid behaves in the opposite way. In this type, the fluid becomes thinner, rather than thicker, when stress is applied. Also called pseudoplastic, examples of this type of non-Newtonian fluid include ketchup, toothpaste, and paint. The effect doesn't usually last for long in either type, continuing only as long as the stress is applied.
Non-Newtonian fluids help us understand the wide variety of fluids that exist in the physical world. Plastic solids, power-law fluids, viscoelastic fluids, and time-dependent viscosity fluids are others that exhibit complex and counterintuitive relationships between shear stress and viscosity/elasticity. However, non-Newtonian fluid is probably the most exciting to play with.
A search for non-Newtonian fluid on YouTube brings up some interesting results. On several game shows, hosts or contestants run across big vats of shear thickening non-Newtonian fluid, able to traverse them unless they stop - in which case they sink immediately. When combined with a oscillating plate, non-Newtonian fluids demonstrate other unusual properties, like protruding "fingers" and holes that persist after creating them. An oscillating plate applies stress on a periodic basis, rapidly changing the viscosity of the fluid and putting it in an odd middle ground between a liquid and a solid.
A practical application for shear thickening non-Newtonian fluids may be in body armor of the future. Since such fluids are usually flexible, they would allow soldiers to move freely when not under attack. But if confronted with a speeding bullet, they would quickly harder, performing like traditional armor. More research is necessary to see if non-Newtonian fluids are suitable for the military, but until then, it's sure fun to play with.
Source:
Adding some technical Stuff:
See the added video.The fluid is supporting the guy’s weight. But how is that possible? The Stokes equation for the shear-stress in a Newtonian fluid is this:
The answer is to note that the guy isn’t ‘walking’ on water: he’s running. And when he walks slowly or stands still, he sinks. The reason our model can’t predict this is because, as is usually the case, the model we’re working with is incomplete. The fluid is non-Newtonian. In this particular instance, it’s called a dilatant or a shear-thickening fluid. A better model for this fluid is this:
Now we see what happens. Because the rate of increase in the stress is much greater than the stress itself (this is when the guy is running), the fluid behaves like a solid, and can therefore support his weight. If, on the other hand, the guy stands still, the rate of increase of the stress is nil (or small), and the mixture starts to behave like a (fairly viscous, as you can see) liquid.
Good. Now that you know of the Maxwell model, you can explain why it is that people can break bones if they land the wrong way on water. To wit: divers are taught to go in arms (or legs) first, so that the rate of increase of stress isn’t too high when the torso gets to the water’s surface. Alternatively, you could fall flat on your back onto the water… you know, if you want a raw back that hurts like it’s been whipped!
Source:
You heard the rumor ?? The batteries stored in a Refrigerator have more life??
The storage instructions on a typical package of household alkaline batteries usually advise consumers to store them in a cool, dry space. This advice is generally meant to discourage the storage of batteries in hot, humid places such as kitchen drawers or glove compartments. One popular rumor about the storage of batteries suggests keeping them in a refrigerator or even a freezer to extend their shelf life. Modern science has weighed in on this rumor, and the final answer depends on what type of batteries are involved and the definition of "extended shelf life". For the most part, many experts say, the practice of storing batteries in a refrigerator creates more problems than it solves.
Household alkaline batteries generate their electrical power through a chemical reaction. Each battery contains alternating layers of two different metals and an alkaline liquid which acts as an electrolyte. When an electrical circuit is complete, free electrons flow out of the positive poles of the batteries, move through the device, and return to the batteries through the negative poles. This process continues until the electrolyte fluid can no longer keep the free electrons flowing. As long as unused batteries are kept in a cool, dry space, they could remain usable for five years or more. The electrolyte fluid retains an estimated 90% of its power as long as the batteries are not allowed to overheat or become unsealed.
This is where the refrigeration issue enters the picture. A household refrigerator typically holds food at 40 degrees Fahrenheit (approximately 10 degrees Celsius) or lower, and the atmosphere inside a refrigerator is very low in humidity. In other words, a refrigerator appears to be the ideal environment for the storage of alkaline batteries. All batteries will eventually lose their charge due to a slow drain of their electrolytes' power. The lower the ambient temperature, however, the slower this power drain could be. According to the results of several scientific tests, batteries stored at refrigerator temperatures do indeed last longer than batteries stored at higher temperatures, but on average the difference is only a few percentage points. Alkaline batteries stored in a refrigerator may retain 93% of their power after five years, compared to 90% for non-refrigerated batteries stored in cool, dry areas.
This isn’t to say that refrigerating or even freezing alkaline batteries would be a complete waste of time, but it isn’t strictly necessary. Chilled batteries would require additional time to warm up to proper operating temperature, which means they could not be taken straight from a refrigerator and placed directly into a flashlight or radio during an emergency. The cold batteries may also start to condense as they thaw, which means moisture could enter the appliance and cause a number of problems.
In short, storing batteries in a refrigerator might add a few more minutes to their shelf life, not enough to justify the additional time they’ll need to return to usefulness. It is far more important that you store your unused batteries away from heat sources and areas prone to high humidity. Heat and humidity will cause stored batteries to leak fluid, and prolonged storage in a device may also encourage corrosion and leakage.
Source:
Additional:
This is where the refrigeration issue enters the picture. A household refrigerator typically holds food at 40 degrees Fahrenheit (approximately 10 degrees Celsius) or lower, and the atmosphere inside a refrigerator is very low in humidity. In other words, a refrigerator appears to be the ideal environment for the storage of alkaline batteries. All batteries will eventually lose their charge due to a slow drain of their electrolytes' power. The lower the ambient temperature, however, the slower this power drain could be. According to the results of several scientific tests, batteries stored at refrigerator temperatures do indeed last longer than batteries stored at higher temperatures, but on average the difference is only a few percentage points. Alkaline batteries stored in a refrigerator may retain 93% of their power after five years, compared to 90% for non-refrigerated batteries stored in cool, dry areas.
This isn’t to say that refrigerating or even freezing alkaline batteries would be a complete waste of time, but it isn’t strictly necessary. Chilled batteries would require additional time to warm up to proper operating temperature, which means they could not be taken straight from a refrigerator and placed directly into a flashlight or radio during an emergency. The cold batteries may also start to condense as they thaw, which means moisture could enter the appliance and cause a number of problems.
In short, storing batteries in a refrigerator might add a few more minutes to their shelf life, not enough to justify the additional time they’ll need to return to usefulness. It is far more important that you store your unused batteries away from heat sources and areas prone to high humidity. Heat and humidity will cause stored batteries to leak fluid, and prolonged storage in a device may also encourage corrosion and leakage.
Source:
Additional:
An interesting tidbit: it technically costs more to refrigerate alkaline batteries, as you're paying for the slight electricity bump used by your refrigerator, and you save very little power. As far as the other types go, most are rechargable, so there's no real need to refrigerate them to hold their charge, just putthem in a charger before you use them. Also, they last a bit longer than a few days at room temperature.
NiMH and NiCd batteries self discharge at a much faster rate than alkaline batteries. In fact, at "room temperature" (about 70 degrees F) NiMH and NiCD batteries will self discharge a few percent per day. Storing them at lower temperatures will slow their self discharge rate dramatically. NiMH batteries stored at freezing will retain over 90 percent of their charge for a full month. So it might make sense to store them in a freezer. If you do, it's best to bring them back to room temperature before using them.
Even if you don't freeze your NiMH batteries after charging them, you should store them in a cool place to minimize their self discharge.
NiMH and NiCd batteries self discharge at a much faster rate than alkaline batteries. In fact, at "room temperature" (about 70 degrees F) NiMH and NiCD batteries will self discharge a few percent per day. Storing them at lower temperatures will slow their self discharge rate dramatically. NiMH batteries stored at freezing will retain over 90 percent of their charge for a full month. So it might make sense to store them in a freezer. If you do, it's best to bring them back to room temperature before using them.
Even if you don't freeze your NiMH batteries after charging them, you should store them in a cool place to minimize their self discharge.
What is the need of "Flight mode" in Cellphones???
Airplane mode is a setting on many cellphones which disables their wireless communication abilities, theoretically making them approved for use on aircraft. While in airplane mode, a phone cannot send or receive phone calls, text messages, picture messages, or video messages, and the user may not browse the Internet on the phone or use Bluetooth® devices with it. However, functions like music players, games, calendars, and so forth can continue to be used.
The idea behind airplane mode is that many people wish to continue using their cell phones on planes to do things like listen to music and check appointments, but the use of cell phones on planes is banned due to the fact that their signals could cause interference. Airplane mode allows cell phone users to circumvent the ban, ensuring that their phones are safe to use on aircraft while the plane is in flight; electronic devices must be turned off for takeoff and landing.
There are two reasons why people are not allowed to use cell phones on aircraft, although the rules against cell phone usage may change at some point. The first reason is that the radio signals emitted by phones could interfere with the communications and guidance systems on the aircraft, which could potentially be very dangerous. In addition, cell phone networks on the ground cannot cope with cell phones being used on planes, because planes travel very fast and at high altitude, so a phone on a plane could confuse a network on the ground.
If a phone offers an airplane mode setting, the user's manual usually clearly shows how to turn airplane mode off and on, and typically it can also be found through the phone's menu. When airplane mode is activated, a small icon often shows up on the screen of the phone to indicate this. In some cases, the user may have to use a password to activate and turn off airplane mode, to ensure that it is not accidentally switched on and off.
Although airplane mode technically makes a phone legal to use on an aircraft, some airlines request that passengers turn their cellphones off anyway, or a flight attendant who is not familiar with the technology may ask you to turn your phone off. Sometimes, explaining that you are using airplane mode is sufficient, and the flight attendant will allow you to leave your phone on, but in other cases, you may be asked to turn it off.
Although this may seem unreasonable, it is better to comply; in the wake of the 11 September 2001 terrorist attacks in the United States, airlines are entitled to remove passengers from flights if they fail to comply with requests the airline terms “reasonable.”
Source:
Additional info:
Wiki:
There are two reasons why people are not allowed to use cell phones on aircraft, although the rules against cell phone usage may change at some point. The first reason is that the radio signals emitted by phones could interfere with the communications and guidance systems on the aircraft, which could potentially be very dangerous. In addition, cell phone networks on the ground cannot cope with cell phones being used on planes, because planes travel very fast and at high altitude, so a phone on a plane could confuse a network on the ground.
If a phone offers an airplane mode setting, the user's manual usually clearly shows how to turn airplane mode off and on, and typically it can also be found through the phone's menu. When airplane mode is activated, a small icon often shows up on the screen of the phone to indicate this. In some cases, the user may have to use a password to activate and turn off airplane mode, to ensure that it is not accidentally switched on and off.
Although airplane mode technically makes a phone legal to use on an aircraft, some airlines request that passengers turn their cellphones off anyway, or a flight attendant who is not familiar with the technology may ask you to turn your phone off. Sometimes, explaining that you are using airplane mode is sufficient, and the flight attendant will allow you to leave your phone on, but in other cases, you may be asked to turn it off.
Although this may seem unreasonable, it is better to comply; in the wake of the 11 September 2001 terrorist attacks in the United States, airlines are entitled to remove passengers from flights if they fail to comply with requests the airline terms “reasonable.”
Source:
Additional info:
Wiki:
Monday, January 10, 2011
Facebook Rubbishes March 15 Shutdown Rumors
A tabloid called Weekly World News has become quite popular over the weekend after it published a news story about Facebook shutting down on March 15. The reason for the shutdown was absurdly cited as, Mark Zuckerberg, CEO of Facebook "wanted his life back" and desired "to put end to all the madness". Zuckerberg is supposed to have made this statement at a press conference outside the social network's Palo Alto office.
The Tabloid, which is known for publishing fake news stories, seems to have tried a spin on the ever-growing social network, Facebook.
"Facebook has gotten out of control," said Zuckerberg in a press conference outside his Palo Alto office," and the stress of managing this company has ruined my life. I need to put an end to all the madness,"
Facebook has squashed this silly and ridiculous rumor with a status message: We didn't get the memo about shutting down, so we'll keep working away like always. We aren't going anywhere; we're just getting started. Facebook Director of Corporate Communications Larry Yu confirmed that the rumor is false. In response to Mashable's mail about the shutdown, Yu responded, "The answer is no, so please help us put an end to this silliness."
The Tabloid, which is known for publishing fake news stories, seems to have tried a spin on the ever-growing social network, Facebook.
"Facebook has gotten out of control," said Zuckerberg in a press conference outside his Palo Alto office," and the stress of managing this company has ruined my life. I need to put an end to all the madness,"
Facebook has squashed this silly and ridiculous rumor with a status message: We didn't get the memo about shutting down, so we'll keep working away like always. We aren't going anywhere; we're just getting started. Facebook Director of Corporate Communications Larry Yu confirmed that the rumor is false. In response to Mashable's mail about the shutdown, Yu responded, "The answer is no, so please help us put an end to this silliness."
சீமானை சந்தித்தார் வைகோ-அதிமுக ஆதரவாக பிரசாரம் செய்ய சீமான் முடிவு
அதிமுக பொதுச் செயலாளர் ஜெயலலிதா தனது தேர்தல் வெற்றிக்கான காய்களை படு வேகமாக நகர்த்தத் தொடங்கியுள்ளார். அதில் ஒரு பகுதியாக நாம் தமிழர் கட்சித் தலைவர் சீமானை தன் பக்கம் இழுத்துள்ளார் -வைகோவின் மூலமாக.
ஈழத்தில் போர் முடிவடைந்த கால கட்டத்தில் தமிழக அரசியல் களத்தில் குதித்தவர் சீமான். முதலில் நாம் தமிழர் இயக்கத்தைத் தொடங்கி ஈழத் தமிழர் ஆதரவு பிரசாரத்தை வேகமாக முன்னெடுத்தார். அவரது அனல் வேகப் பேச்சால் பலரையும் ஈர்த்தார். இதன் விளைவாக 2 முறை தேசிய பாதுகாப்புச் சட்டத்தின் கீழ் கைதாகி சிறையும் சென்றார். சமீபத்தில் அவர் விடுதலையானார்.
இந்த நிலையில் நாம் தமிழர் கட்சியை தன் பக்கம் இழுத்துள்ளது அதிமுக. சீமானை அதிமுக கூட்டணிக்கு இழுப்பதற்கான முயற்சிகளை வைகோவிடம் ஒப்படைத்தார் ஜெயலலிதா.
இதன் விளைவாக இன்று மதிமுக தலைமைக் கழக அலுவலகம் சென்று வைகோவை சந்தித்துப் பேசினார் சீமான்.
ஒன்றரை மணிநேரம் இந்த சந்திப்பு நடந்தது. பின்னர் செய்தியாளர்களிடம் சீமான் பேசுகையில்,
நான் சிறையில் இருந்த போது விடுதலையாக வேண்டும் என்று மனப்பூர்வமாக வைகோ அறிக்கை வெளியிட்டார். அதைப்போல நான் விடுதலை செய்யப்பட்டேன் அவரது அன்பிற்கும் ஆதரவிற்கும் நன்றி செலுத்த கடமைப்பட்டவன். வருகிற தேர்தலில் காங்கிரசையும், அதன் கூட்டணி கட்சியையும் அப்புறப்படுத்த வேண்டும் என்ற லட்சிய வெறியோடு பணியாற்றுவோம்.
வைகோ தேசிய அரசியலில் பல வருடங்கள் இருந்து விட்டார். மாநில அரசியலுக்கு அவர் வர வேண்டும். எம்.எல்.ஏ.வாக சட்டசபைக்குள் செல்ல வேண்டும். அங்கு தமிழர்கள் ஆதரவு குரல் ஒலிக்க வேண்டும் என்று நான் அவரை வலியுறுத்தினேன். யோசிக்கிறேன் என்று கூறியிருக்கிறார். யோசிப்பதற்கு எதுவும் இல்லை. இந்த முறை எப்படியாவது அவர் எம்.எல்.ஏ. தொகுதியில் போட்டியிட வேண்டும்.
கடந்த தேர்தலில் இரட்டை இலைக்கு ஆதரவாக ஓட்டு போடச் சொன்னீர்கள். இந்த தேர்தலிலும் அவ்வாறு கேட்பீர்களா என்ற கேள்விக்கு சீமான் பதிலளிக்கையில்,
இரட்டை இலைக்கு வாக்களியுங்கள் என்று கடந்த தேர்தலில் சொன்னேன். காங்கிரசுக்கு எதிராக களத்தில் நிற்கும் பெரிய கட்சி அ.தி.மு.க. காங்கிரசை வீழ்த்த இரட்டை இலைக்கு ஆதரவு அளியுங்கள் என்றேன். இப்போதும் அப்படித்தான் சொல்வேன். இதை கூட சொல்வதற்கு தைரியும் இல்லை என்றால் நான் எப்படி போராளியாக முடியும். யாருக்கு வேண்டு மானாலும் ஓட்டு போடுங்கள் என்று குடு குடுப்பக்காரன் போல் நான் ஜோசியம் சொல்ல மாட்டேன். யார் வர வேண்டும் என்பதல்ல. யார் வரக்கூடாது என்பதுதான் எங்கள் குறி என்றார் அவர்.
முதல்வர் கருணாநிதியை எதிர்த்துப் போட்டியிட்டு உங்களால் வெற்றி பெற முடியுமா என்ற கேள்விக்கு அவர் பதிலளிக்கையில்,
காமராஜரை சீனிவாசன் தோற்கடிக்க வில்லையா? அதே போல் சீமானால் தோற்கடிக்க முடியாதா? அது வரலாற்றில் தவறு. தேர்தலுக்கு இன்னும் நேரம் இருக்கிறது. அப்போது பார்ப்போம் என்றார் சீமான்.
வலுவான வஜ்ராயுதமாக சீமான் இருப்பார்-வைகோ
வைகோ பேசுகையில்,
தமிழ் ஈழ மக்களின் உரிமைகளுக்காகவும், தமிழ் ஈழ விடுதலைக்காகவும் அர்ப்பணிப்பு உணர்வுடன் போராடும் போராளி சீமான் மீது இரண்டு முறை தேசிய பாதுகாப்பு தடுப்பு சட்டம் தவறாக பயன்படுத்தப்பட்டது. சிறைச் சாலைகளில் அடக்குமுறை. லட்சிய தாகம் கொண்டவர்களை ஒடுக்க முடியாது. சீமான் கைது செய்யப்பட்டதும் முதல் கண்டன அறிக்கை ம.தி.மு.க. கொடுத்தது.
சீமான் பேசிய அதே பேச்சை நான் தமிழ்நாடு முழுவதும் கூட்டங்களில் பேசினேன். அவர் பேச்சில் எந்த தவறும் இல்லை. வேலூர் சிறையில் நானும், நெடுமாறனும் சீமானை சந்தித்தோம். அப்போது எந்த தவறும் செய்யாமல் ஸ்ரீபெரும்புதூரில் நடந்த ஒரு கொலைக்காக 20 ஆண்டுகளாக சிறையில் வாடும் தம்பிகளையும் பார்த்தேன். சீமானை கைது செய்தது சட்டவிரோதம் என்று கோர்ட்டு விடுவித்துள்ளது.
விடுதலைப்புலிகளை ஆதரித்து பேசுவது எங்கள் உரிமை. அதை யாரும் தடுக்க முடியாது. கடந்த பாராளுமன்ற தேர்தலில் ஆட்சி அதிகாரத்தை பிடித்ததற்கு 1200 கோடி ரூபாய் செலவு செய்தும் கூட 13 லட்சம் வாக்குகள் வித்தியாசத்தில்தான் தி.மு.க. காங்கிரஸ் கூட்டணி வெற்றி பெற்றது. வருகிற சட்டசபை தேர்தல் தமிழர்களின் தன்மானத்திற்கு விடும் அறை கூவல். தமிழ்நாட்டில்
பள்ளி குழந்தைகளின் உயிருக்கு பாதுகாப்பு இல்லை. சுதந்திரமாக தொழில் செய்ய பாதுகாப்பு இல்லை. வரப்போகும் தேர்தலில் விலைவாசி உயர்வு, மணல் திருட்டு, வாழ்வாதார சீரழிவு பற்றி தெருத் தெருவாக பிரசாரம் செய்வோம்.
தேர்தல் களத்தை சந்திக்க சீமான் தயார். வலுவான வஜ்ராயுதமாக சீமான் இருப்பார். கலையுலகில் இருக்கும் தமிழ் இன உணவாளர்களும் இணைந்து வெற்றியை ஈட்டுவார்கள் என்றார் வைகோ.
அதிமுக கூட்டணியில் காங். இல்லை!
சீமானின் பேட்டியின் மூலம் இன்னொரு விஷயமும் தெளிவாகியுள்ளது. அது - அதிமுக கூட்டணியில் காங்கிரஸ் சேரவில்லை என்பது.
தற்போதைய சூழ்நிலையில் திமுக, காங்கிரஸ், விடுதலைச் சிறுத்தைகள் ஆகியவை ஒரு கூட்டணியாகவும், அதிமுக, மதிமுக, கம்யூனிஸ்ட் கட்சிகள், நாம் தமிழர் ஆகியவை ஒரு கூட்டணியாகவும் போட்டியிடும் என்று தெரிகிறது. பாமக, திமுக பக்கம் போகலாம். அதேசமயம், தேமுதிகவின் நிலை தெளிவாகத் தெரியவில்லை. பாஜக, குட்டிக் கட்சிகளை சேர்த்துக் கொண்டு வழக்கம் போல தேறாத ஒரு கூட்டணியை அமைக்கக் கூடும் என்று தெரிகிறது.
கருணாநிதிக்கு எதிராக அதிமுக ஆதரவுடன் சீமான் போட்டி?
அதிமுக கூட்டணி சார்பில் முதல்வர் கருணாநிதி போட்டியிடும் தொகுதியில் அவருக்கு எதிராக சீமான் நிறுத்தப்படலாம் என்று தெரிகிறது.
ஜெயலலிதா சட்டசபைத் தேர்தலில் ஒரு வாக்கைக் கூட வீணடிக்காமல் அள்ளி விட படு தீவிரமாக காய் நகர்த்தி வருகிறார்.
கிறிஸ்தவர்களை ஐஸ் வைக்கும் வகையில் குமரி மாவட்டத்தில் நடந்த கிறிஸ்துமஸ் விழாவில் கலந்து கொண்டார்.
நேற்று நாடார் சமுதாயத்தினரைக் கவரும் வகையில், அய்யா வைகுண்டர் தலைமைப்பதிக்குச் சென்று பேசினார்.
இப்போது ஈழத் தமிழ் ஆதரவாளர்களின் வாக்குகளை அள்ள அவர் சீமானை வளைத்துள்ளதாக தெரிகிறது.
ஈழத்தில் போர் உக்கிரமடைந்த போது கடைசிக்கட்டத்தில்தான் ஈழத் தமிழர்களுக்காக குரல்கொடுத்தார் ஜெயலலிதா. அதேசமயம், லோக்சபா தேர்தல் முடிந்த அடுத்த நிமிடமே ஈழத்தைப் பற்றிப் பேசுவது கூட கிடையாது என்பது குறிப்பிடத்தக்கது. இந்த சூழ்நிலையில் அவருக்காக சீமான் ஆதரவு கோரி பிரசாரம் செய்யப் போவதாக அறிவித்துள்ளது பரபரப்பை ஏற்படுத்தியுள்ளது.
English summary
Naam Tamilar president Seeman has decided to campaign for ADMK in TN assembly election. He met MDMK chief Vaiko today. After the meeting Seeman told that, I have decided to campaign for ADMK in the elections. Our only motto is to defeat Congress in the polls. I have asked Vaiko to contest in polls, he said. Seeman may be fielded against CM Karunanidhi.
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Ganguly's exclusion from IPL not purely on cricketing basis: Kapil
Sourav Ganguly's omission from the fourth edition of the Indian Premier League is not "purely on cricketing basis", says former India captain Kapil Dev.
In what turned out to be one of the major embarrassments in his chequered career, India's most successful cricket captain Ganguly was left red-faced as none of the 10 franchises put his name up in the wish list after both rounds of auctions that concluded in Bangalore on Sunday.
"Lot of other reasons are there. I don't think merely on cricketing basis, he is not there. It's not on purely cricketing basis (his exclusion)," said Kapil.
"I always felt that Ganguly should be the captain of the Kolkata Knight Riders otherwise he should not be playing.
Because of his nature, commitment, determination and the way he works with the team or what he did to the Indian team, this all makes a lot of difference," the 1983 World cup winning captain Kapil told a TV news channel.
There was every reason that the fourth highest scorer in last year's league felt insulted as he had prolonged his cricketing career only to play in the IPL. With franchises turning their backs on him, it was certainly one of the most ignominious ends for the Prince of Kolkata.
And Kapil said without Ganguly, KKR will lose its fan following.
"Without Sourav, KKR is nothing. A lot of time confusion was there whether he should be playing as a player or leading the side as the captain. If I was there, I had said lead the side to best of your abilities otherwise just say goodbye to cricket.
"Franchises thought we have given him chance for three years, it's time to say him goodbye. But I think lot of other reasons are there," said Kapil.
In Durban, Kolkata Knight Riders' co-owner and Bollywood icon Shah Rukh Khan today said he would try and find a role for Ganguly, who led the KKR in the last edition.
"I would love it, I would love Sourav to be an integral part. You don't have a team in Kolkata without him. So, I will speak to Dada when I get back," Shah Rukh said.
Wednesday, January 5, 2011
Researchers: Ancient human remains found in Israel
--JERUSALEM –
Israeli archaeologists said Monday they may have found the earliest evidence yet for the existence of modern man, and if so, it could upset theories of the origin of humans.
A Tel Aviv University team excavating a cave in central Israel said teeth found in the cave are about 400,000 years old and resemble those of other remains of modern man, known scientifically as Homo sapiens, found in Israel. The earliest Homo sapiens remains found until now are half as old.
"It's very exciting to come to this conclusion," said archaeologist Avi Gopher, whose team examined the teeth with X-rays and CT scans and dated them according to the layers of earth where they were found.
He stressed that further research is needed to solidify the claim. If it does, he says, "this changes the whole picture of evolution."
The accepted scientific theory is that Homo sapiens originated in Africa and migrated out of the continent. Gopher said if the remains are definitively linked to modern human's ancestors, it could mean that modern man in fact originated in what is now Israel.
Sir Paul Mellars, a prehistory expert at Cambridge University, said the study is reputable, and the find is "important" because remains from that critical time period are scarce, but it is premature to say the remains are human.
"Based on the evidence they've cited, it's a very tenuous and frankly rather remote possibility," Mellars said. He said the remains are more likely related to modern man's ancient relatives, the Neanderthals.
According to today's accepted scientific theories, modern humans and Neanderthals stemmed from a common ancestor who lived in Africa about 700,000 years ago. One group of descendants migrated to Europe and developed into Neanderthals, later becoming extinct. Another group stayed in Africa and evolved into Homo sapiens — modern humans.
Teeth are often unreliable indicators of origin, and analyses of skull remains would more definitively identify the species found in the Israeli cave, Mellars said.
Gopher, the Israeli archaeologist, said he is confident his team will find skulls and bones as they continue their dig.
The prehistoric Qesem cave was discovered in 2000, and excavations began in 2004. Researchers Gopher, Ran Barkai and Israel Hershkowitz published their study in the American Journal of Physical Anthropology.
முதல் மனிதன் தோன்றியது எங்கே?வரலாற்றை திருத்தும் புதிய முடிவு
இஸ்ரேல்:"உலகின் முதல் மனிதன் மேற்கு ஆசியாவில் தான் தோன்றினான்' என, இஸ்ரேல் நாட்டு விஞ்ஞானிகள் தெரிவிக்கின்றனர்.இதுநாள் வரையில், கடந்த இரண்டு லட்சம் ஆண்டுகளுக்கு முன் வாழ்ந்த ஹோமோ சேப்பியன் என்ற இனத்தில் இருந்துதான் நவீன மனிதன் தோன்றினான் என்றும், முதன்முதலில் ஆப்ரிக்காவில் தோன்றிய இந்த ஹோமோ சேப்பியன் இனத்தவர் படிப்படியாக, ஐரோப்பா, மேற்கு ஆசியா மற்றும் இதர ஆசியப் பகுதிகள் நோக்கி இடம் பெயர்ந்தனர் எனவும், வரலாற்று அறிஞர்களால் நம்பப்பட்டு வந்தது.
சமீபத்தில், இஸ்ரேல் நாட்டில் உள்ள பென்-குரியான் விமான நிலையம் அருகில் இருக்கும் குகை ஒன்றில் (குசேம்), அந்நாட்டு தொல்பொருள் ஆராய்ச்சியாளர்கள் ஆய்வு மேற்கொண்டனர். அப்போது, நான்கு லட்சம் ஆண்டுகளுக்கு முன் வாழ்ந்த ஆதிமனிதனின் உடல் படிவங்களை கண்டெடுத்துள்ளனர்.இதுகுறித்து டெல் அவிவ் பல்கலை விஞ்ஞானிகள் கூறியதாவது:நான்கு லட்சம் ஆண்டுகளுக்கு முன் வாழ்ந்த ஹோமோ சேப்பியன்களின், உடல் படிவங்கள் "குசேம்' குகையில் கிடைத்துள்ளன. மனித பல் போன்றுள்ள இந்த படிமம் மத்திய "பிளைஸ்தோகின்' காலத்தை சேர்ந்தது.
இதை ஆய்வு செய்ததில், உலகின் முதல் மனிதன் மேற்கு ஆசியாவில் தான் தோன்றினான் என தெரிய வந்துள்ளது. மேலும், மேற்கு ஆசியாவில் இருந்து தான் உலகின் பிற பகுதிகளுக்கும் பரவியுள்ளான்.இவ்வாறு விஞ்ஞானிகள் தெரிவித்தனர்.ஆப்ரிக்காவில் தான் முதல் ஹோமோ சேப்பியன் தோன்றினான் எனவும், உலகின் தாய்வீடு ஆப்ரிக்கா எனவும் கூறப்பட்டு வந்த நிலையில், இஸ்ரேல் நாட்டு விஞ்ஞானிகளின் புதிய முடிவுகள் பெரும் பரபரப்பை ஏற்படுத்தியுள்ளன. இதன் மூலம், நவீனகால மனிதனின் தோற்றம் குறித்த வரலாறு திருத்தி எழுதப்படும் என தெரிகிறது.
Do u want to have 200 calories??? Eat this?? What? See!!
Some foods have significantly more Calories than others but what does the difference actually look like. Each of the photographs below represents 200 Calories of the particular type of food; the images are sorted from low to high calorie density. When you consider that an entire plate of broccoli contains the same number of Calories as a small spoonful of peanut butter, you might think twice the next time you decide what to eat. According to the U.S. Department of Agriculture, the average adult needs to consume about 2000 - 2500 Calories to maintain their weight. In other words, you have a fixed amount of Calories to "spend" each day; based on the following pictures, which would you eat?
Pictures of 200 Calories of Various Foods
Mini Peppers
740 grams = 200 Calories
Broccoli
588 grams = 200 Calories
Baby Carrots
570 grams = 200 Calories
Honeydew Melon
553 grams = 200 Calories
Coca Cola
496 ml = 200 Calories
Red Onions
475 grams = 200 Calories
Apples
385 grams = 200 Calories
Canned Green Peas
357 grams = 200 Calories
Whole Milk
333 ml = 200 Calories
Canned Sweet Corn
308 grams = 200 Calories
Grapes
290 grams = 200 Calories
Ketchup
226 grams = 200 Calories
Sliced Smoked Turkey
204 grams = 200 Calories
Balsamic Vinegar
200 ml = 200 Calories
Canned Black Beans
186 grams = 200 Calories
Canned Pork and Beans
186 grams = 200 Calories
Eggs
150 grams = 200 Calories
Cooked Pasta
145 grams = 200 Calories
Avocado
125 grams = 200 Calories
Fiber One Cereal
100 grams = 200 Calories
Flax Bread
90 grams = 200 Calories
Dried Apricots
83 grams = 200 Calories
Jack in the Box Cheeseburger
75 grams = 200 Calories
Jack in the Box French Fries
73 grams = 200 Calories
Jack in the Box Chicken Sandwich
72 grams = 200 Calories
French Sandwich Roll
72 grams = 200 Calories
Blueberry Muffin
72 grams = 200 Calories
Tootsie Pops
68 grams = 200 Calories
Hot Dogs
66 grams = 200 Calories
Bailey's Irish Cream
60 ml = 200 Calories
Smarties Candy
57 grams = 200 Calories
Uncooked Pasta
56 grams = 200 Calories
Blackberry Pie
56 grams = 200 Calories
Cranberry Vanilla Crunch Cereal
55 grams = 200 Calories
Cornmeal
55 grams = 200 Calories
Wheat Flour
55 grams = 200 Calories
Peanut Butter Power Bar
54 grams = 200 Calories
Puffed Rice Cereal
54 grams = 200 Calories
Jelly Belly Jelly Beans
54 grams = 200 Calories
Puffed Wheat Cereal
53 grams = 200 Calories
Brown Sugar
53 grams = 200 Calories
Glazed Doughnut
52 grams = 200 Calories
Salted Pretzels
52 grams = 200 Calories
Medium Cheddar Cheese
51 grams = 200 Calories
Fruit Loops Cereal
51 grams = 200 Calories
Gummy Bears
51 grams = 200 Calories
Splenda Artifical Sweetener
50 grams = 200 Calories
Salted Saltines Crackers
50 grams = 200 Calories
Werther's Originals Candy
50 grams = 200 Calories
Snickers Chocolate Bar
41 grams = 200 Calories
Doritos
41 grams = 200 Calories
Marshmallow Treat
40 grams = 200 Calories
M&M Candy
40 grams = 200 Calories
Peanut Butter Crackers
39 grams = 200 Calories
Cheetos
38 grams = 200 Calories
Hershey Kisses
36 grams = 200 Calories
Sliced and Toasted Almonds
35 grams = 200 Calories
Fried Bacon
34 grams = 200 Calories
Peanut Butter
34 grams = 200 Calories
Salted Mixed Nuts
33 grams = 200 Calories
Butter
28 grams = 200 Calories
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