The Maillard reaction between amino acids and sugars is responsible for the browning of bread, meat, and coffee.

The use of ultrasound improved prenatal care.

Fact #1213 · Science

The Müller-Lyer illusion makes lines of equal length appear different.

Fact #1464 · Science

The checker shadow illusion alters perception of color brightness.

Fact #1492 · Science

The axolotl can regenerate limbs and even parts of its heart.

Fact #366 · Science

The door-in-the-face technique uses large requests to gain smaller agreements.

Fact #1502 · Science

Sound travels faster in solids than in air.

Fact #54 · Science

Nothing can travel faster than light in a vacuum.

Fact #1739 · Science

Some bacteria evolve resistance to antibiotics through natural selection.

Fact #866 · Science