Science

They can turn yellow because of unprocessed bilirubin, which is a by-product of the catabolism of heme (a precursor to hemoglobin).

However, it was not until the late 19th century that mental anorexia nervosa was widely accepted by ...

It is thought to consist of a combination of biological, psychological, and environmental factors.

The genetic material of organisms trapped within the amber is dissolved, so there is no possibility of recreating millennia-old creatures, such as dinosaurs, plainly out of the remnants from amber.

If only as much as 25% of the organ remains, it regenerates to the original size within a few weeks. This is why the liver makes a great donation organ.

It is made of an alloy of nickel and iron with small admixtures of other elements. It reaches temperatures from 5500 to 6500 degrees Celsius and the pressure there is 13.5 million atmospheres.

Under natural conditions, nicotine occurs in the leaves and roots of noble tobacco (Nicotiana tabacum), which is most often used in the tobacco industry. The leaves contain 1 to 3 percent of nicotine.

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

Such deviations are called librations and thanks to them it is possible to observe as much as 59 percent of the surface of the silver globe from Earth.