Science

According to the simples calculation taking into account the number of galaxies and the average numb ...

Dry eye syndrome is caused by insufficient quantity or quality of tears, which prevents the proper lubrication of eyeballs. It causes excessive watering of the eyes, as a response to the irritation.

The number of stars was originally estimated at around 100 million, but recent measurements suggest that this number may be up to four times greater.

They are: Basal tears (protecting and nourishing cornea) Reflex tears (glands' reaction to irritating compounds, like smoke) Emotional tears (produced in response to various emotional states)

This means that when we look at the Sun in the sky, we see it where it was more than 8 minutes ago.

It was used both during religious ceremonies and in hospitals because it was believed to accelerate recovery and help to concentrate.

This is the view of some researchers, claiming that a snowflake falling on water produces a high-fre ...

Scientists claim amber was supposed to represent the tears of Ra—the Egyptian god of the Sun.

The moon is relatively large for a natural satellite. Its diameter is approximately ¼ the diameter of the Earth. It orbits the Earth at an average distance of 384.400 km.