#1 INTERESTING SCIENCE FACTS
Somewhere Something incredible is waiting to be known.
Fact no. 1:- It takes 8 minutes and 19 seconds for light to travel from the sun to the Earth.
explanation- in space, light travels at 300,000 kilometres per second. however, it takes about 10,000-17,000 years for a photon to travel from the core of the sun to the surface of Earth. And eight minutes is still very little compared to the five and a half hours it takes for the Sun’s light to reach Pluto.
Fact no.2:- The Earth is a giant magnet
explanation- Earth’s inner core is a sphere of solid iron, surrounded by liquid iron. Variations in temperature and density create currents in this iron, which in turn produce electrical currents. Lined up by the Earth’s spin, these currents combine to create a magnetic field, used by compass needles worldwide.
Fact no.3:- In 2.3 billion years it will be too hot for life to exist on Earth
explanation- Over the coming hundreds of millions of years, the Sun will continue to get progressively brighter and hotter. In just over 2 billion years, temperatures will be high enough to evaporate our oceans, making life on Earth impossible. Our planet will become a vast desert similar to Mars today. As it expands into a red giant in the following few billion years, scientists predict that the Sun will finally engulf Earth altogether, spelling the definite end for our planet.
Fact no.4:- 20% of Earth's oxygen is produced by the Amazon rainforest
explanation- Our atmosphere is made up of roughly 78 per cent nitrogen and 21 per cent oxygen, with various other gases present in small amounts. The vast majority of living organisms on Earth need oxygen to survive, converting it into carbon dioxide as they breathe. Thankfully, plants continually replenish our planet’s oxygen levels through photosynthesis. During this process, carbon dioxide and water are converted into energy, releasing oxygen as a by-product. Covering 5.5 million square kilometres (2.1 million square miles), the Amazon rainforest cycles a significant proportion of the Earth’s oxygen, absorbing large quantities of carbon dioxide at the same time.
Fact no.5:- A teaspoon of neutron star would weigh 6 billion tons
explanation- A neutron star is the remnants of a massive star that has run out of fuel. The dying star explodes in a supernova while its core collapses in on itself due to gravity, forming a super-dense neutron star. Astronomers measure the mind-bogglingly large masses of stars or galaxies in solar masses, with one solar mass equal to the Sun’s mass (that is, 2 x 1030 kilograms/4.4 x 1030 pounds). Typical neutron stars have a mass of up to three solar masses, which is crammed into a sphere with a radius of approximately ten kilometres (6.2 miles) – resulting in some of the densest matter in the known universe.
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