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Jayant Narlikar and Thanu Padmanabhan

Eratosthenes & radius of Earth

Is the Earth flat or shaped like a ball? This question had figured frequently in different civilisations and there were long arguments for and against.
Section: Sci/Tech  | Monday, June 29, 2009 3:27 IST

A revolutionary scientist, Maxwell

If asked to name a third physicist to rank with Isaac Newton and Albert Einstein, most scientists will come up with the name of Maxwell.
Section: Sci/Tech  | Monday, June 22, 2009 1:45 IST

Rare event: The transit of Venus

Like occultations, described in the last article in this series, there is another class of celestial phenomena that hold attraction to the astronomer.
Section: Sci/Tech  | Monday, June 15, 2009 3:35 IST

Most amazing occultation: Solar eclipse

Solar eclipse is perhaps the most spectacular of all occultations. The transformation of day to night for a few moments shows how efficient is the covering process.
Section: Sci/Tech  | Sunday, May 31, 2009 22:15 IST

Observatories in India

The first major optical observatory in independent India became operational at the Manora Peak, Nainital in 1953 thanks to the dedicated efforts of Dr Vainu Bappu.
Section: Sci/Tech  | Monday, May 11, 2009 2:22 IST

The many different Moons of the solar system

Much of our literature would have suffered and poets would have been at a loss if Earth did not have a Moon going around it!
Section: Sci/Tech  | Monday, May 4, 2009 2:42 IST

Not clear as to when Newton was born

Isaac Newton is credited with many fundamental contributions to physics, mathematics and astronomy.
Section: World  | Monday, March 16, 2009 3:17 IST

The eleven year cycle of the Sun

To a casual observer the Sun presents the same appearance, except when rising and setting. So the impression created is that the Sun does not undergo any changes at all.
Section: Sci/Tech  | Tuesday, March 10, 2009 3:21 IST

History of Mars landings

Mars, amongst all extraterrestrial planets of our solar system, continues to attract our attention most, as it is relatively close to the Earth, seems to bear resemblance to it.
Section: Sci/Tech  | Monday, February 2, 2009 3:00 IST

Distance units in astronomy

How far is Delhi from Mumbai? A distance chart may show the answer to be something like 1407 kilometres. But suppose we answer that Delhi is 1,407,000,000 millimetres from Mumbai!
Section: Sci/Tech  | Wednesday, January 21, 2009 3:00 IST


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