GK and Amazingfacts

Sunday 10 April 2016

Why is the sun yellow while the stars are white ?


The light receptor cells- known as cones- in the human eye. are considerably less sensitive than the cells responsible

for distinguishing light and darkness- known as rods. As a result, in dim light we are barely able to discern colour-

as the saying goes, at night all cats are grey. Therefore, most stars appears to us to be white-only in the very 

brightest stars can we see traces of colour. For example, the star Antares in the constellation Scorpius appears to
 
be reddish. The colour of a star enables astronomers to gauge its temperature.Red stars are cooler than the sun,while

blue stars are very hot.


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Sunday 15 March 2015

New Microwave Tech Paves Way for Space-Based Solar Power Generation

New Microwave Tech Paves Way for Space-Based Solar Power Generation




Paving the way for the production of solar energy space-based, Japanese researchers have succeeded in transmitting electrical power wirelessly to a point target microwave.The team of the Japan Aerospace Exploration Agency (JAXA) transformed 1.8 kilowatts of electrical power microwave and forwarded with an accuracy to a receiver located 55 meters, the Wall Street Journal reported.In the experiment conducted in Hyogo Prefecture, western Japan, the microwave was converted with live electrical current success at the receiving end.For the generation of space solar power, sunlight is collected in geostationary orbit and transmitted to a receiver on Earth.If implemented, microwave transmission solar satellites would be in place about 35,000 km above the Earth in 2030, a spokesman for JAXA was quoted as saying.A receiver in place on Earth with a radius of about three kilometers can create up to a gigawatt of electricity - about the same as a nuclear reactor.The researchers' aim for practical use in the 2030s, "JAXA researcher Yasuyuki Fukumuro posted on its website.Satellite solar panels can capture the energy around the clock and are not affected by the weather, the report added.


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Tuesday 10 March 2015

Can You Dream in a Language You Don't Know?

Can You Dream in a Language You Don't Know?

Most dreams don't involve clear speech of any kind.Any Speech is just a jumble of concepts, intuition and ideas that are understood by the characters in your dream without being fully articulated.It's quite possible to believe you are speaking a foreign language in your dream, but there is no reason to assume that it's any more real than the dream sensation that you can fly.The only thing you can't do in your dream is running,Yes can't run.



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Tuesday 3 March 2015

HOW MUCH NET ENERGY DOES A WIND TURBINE PRODUCE

HOW MUCH NET ENERGY DOES A WIND TURBINE PRODUCE

HOW MUCH NET ENERGY DOES A WIND TURBINE PRODUCE ?




wind farms can produce electricity whenever wind speeds are between around 8 to 50km/h which is around 75 percent of the time .the trouble is that the wind doesn't blow at a constant rate for all of that time,and consequently aften falls below the optimum speed for electricity production.

   
As a result, a wind turbine rated at,say,two megawatts typically has a much lower average output over the course of a year,amonting to just 30percent of this installed capacity figure,or around 600 kilowatts. critics of wind power add that even these average  figures mask the impact of meterological conditions. for examples,
bitterly cold weather can frequently coincide with high pressure systems,which leads to there being virtually no wind  at all-and therefore no power from wind turbines,just when it's most needed.



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Friday 27 February 2015

RAMAKANT ACHREKAR SLAP SACHIN TENDULKAR

 RAMAKANT ACHREKAR SLAP SACHIN   TENDULKAR

 (SLAP has changed LOOK OUT SACHIN)


 Each has a large Sporting transformung time of life. in the case of SACHIN

 Tendulkar
was a slap coach " Ramakant Achrekar " slap- tight which

 he called the " end cut'- left a lasting impression on him.

 
    "After finshing school, I used to hurry to my aunt's place for lunch.

 at that time , sir used to organize matches for me. He used to tell the

 oppostion I'd be batting at number four , "recalled Tendulkar .


     He added , " such a day, instead of playing a game, I joined a friend

 the " Wankhede Stadium to watch English boys - support ' SHARDASHRAM '

 take on the boys SHARSHRAM Marathi - media in the final shiled and HARRIS

 encourage our team. "


     And here Achrekar , too, was there.

    " We spotted sir and went to greet him. He knew I 'd missed the game but

 he still asked me how I played in it. I told him that I thought I'd jump

 the game to cheer for our team. I had a late - cup ( tight slap ) on

 my face. Tiffin box in my hand flew and all content distributed over ITD ,

 " Said Tendulkar .

    "At the time , sir told me, ' you do not have to be here to encourage others.

 play so that others applaud you.'since that day , I started to practice

 very hard and put a lot of hours. if not for that day , I could have been

 encourage others from the position, " he said .


     NUMBERED

  17 years, 107 days

  The age at which Tendulkar scored his

  first century test against England at

  Old Trafford.


  
 " He knew I d always missed

  match, but he asked me again

  how I played in it. I said
 
  i had jumped him the game

  Come cheer on our team.

  I had a late cut ( slap ) on my face "


 SACHIN TENFULKAR , later recalled the incident.


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