Measures electric power.

Fluxmeter is used to measure magnetic flux.

Universe was infinitely hot at birth and cooled as it expanded.

Today’s universe is found to have an average temperature of..

Universe is approximately..

The launch of Hubble was delayed due to the 1986 Space Shuttle Challenger disaster.

Albert Einstein's theories tell us that black holes are made of pure gravitational energy. They have mass and spin, but contain no matter. Anything that falls into a black hole is converted to energy.

Every person has more than 75km of nerves in their body.

Your nerves can send messages slower than a Grand Prix car travels.

Brain has over 100,000,000,000 nerver cells each with up to 150,000 connections. Each cell is connected to 25,000 others.

The brain weighs about 1.5kg in an adult human.

Compared to other animals, human brains are small for the body.

On average, the male brain is slightly bigger than the female brain.

Brass gets discoloured in air because of the presence of which of the following gases in air?

Which of the following is a non metal that remains liquid at room temperature?

Chlorophyll is a naturally occurring chelate compound in which central metal is

Which of the following is used in pencils?