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Monday, March 22, 2021
Sunday, March 21, 2021
FASCINATING FACTS : LARGEST TREE IN THE WORLD
LARGEST TREE IN THE WORLD
Location : Giant Forest of Sequoia National Park in Tulare County, California, USA.
The General Sherman Tree is the world's largest tree, measured by volume. It stands 275 feet (83 m) tall, and is over 36 feet (11 m) in diameter at the base. Sequoia trunks remain wide high up. Sixty feet above the base, the Sherman Tree is 17.5 feet (5.3 m) in diameter.
It is estimated to be around 2,300 to 2,700 years old.
Saturday, March 20, 2021
SCIENCE WATCH
The Positive Electron: 88 years ago Carl Anderson's discovery of the positron was published #OnThisDay in 1933.
In developing quantum mechanical theory, Paul Dirac predicted that all matter has a kind of mirror image - antimatter. A particle and its antiparticle, if charged, should have opposite charges. By studying the tracks of cosmic ray particles in a cloud chamber, Anderson discovered a positively-charged particle with a mass seemingly equal to that of an electron, in 1932, Anderson's particle was the first antiparticle proven by experiment and was named a "positron".
Anderson was awarded the Nobel Prize in Physics in 1936.
Image: Cloud chamber photograph by Anderson, the first positron ever observed. A 6 mm lead plate separates the upper and lower halves of the chamber. The deflection and direction of the particle's ion trail indicate the particle is a positron.
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Friday, March 19, 2021
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