Print Friendly, PDF & Email

Nobel Prize in Physics

Topics Covered:

  1. Science and Technology- developments and their applications and effects in everyday life Achievements of Indians in science & technology; indigenization of technology and developing new technology.

 

Nobel Prize in Physics

 

Context: Three scientists- Canadian-American cosmologist James Peebles and Swiss astronomers Michel Mayor and Didier Queloz- have jointly been awarded the 2019 Nobel Prize in physics for encouraging the growth of the “understanding of our place in the Universe”.

 

Details:

  1. Peebles findings:

He won one-half of the prize” for theoretical discoveries that have contributed to our understanding of “how the Universe evolved after the Big Bang“.

Using theoretical tools and calculations, he drew a link between the temperature of the radiation emitted after the Big Bang and the amount of matter it created.

His work showed that the matter known to us — such as stars, planets, and ourselves — only makes up five percent, while the other 95 percent is made up of “unknown dark matter and dark energy”.

 

 

  1. Michel Mayor and Didier Queloz:

They shared the prize for their discovery of an exoplanet outside our solar system orbiting a solar-type star in the Milky Way.

They were able to detect a gaseous ball similar in size to Jupiter, orbiting a star 50 light years from our own Sun.

Harnessing the Doppler effect, the pair proved the planet, known as 51 Pegasus b, was orbiting its star.

 

Sources: the Hindu.