Capsules

Handwashing Prevents Infection

Washing the hands with soap and water is one of the simplest and most powerful tools in all of medicine for preventing the spread of disease. It is a…

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astronomy

Proven· Replicated

The Age of the Universe

The universe is about 13.8 billion years old. Once a matter of wide uncertainty and heated debate, this figure is now known with remarkable…

Proven· Mathematical Proof

mathematics

Fermat's Last Theorem

Fermat's Last Theorem states that no three positive whole numbers can satisfy the equation a to the power n, plus b to the power n, equals c to the…

Smoking Causes Cancer

That tobacco smoking causes cancer is one of the most thoroughly established findings in all of medicine. Smoking is the leading preventable cause of…

Pasteurization

Pasteurization is the process of heating a food or drink to a specific temperature for a set length of time in order to kill harmful microorganisms…

Proven· Mathematical Proof

mathematics

The Four Color Theorem

The four color theorem states that any map drawn on a flat surface can be colored using only four colors in such a way that no two regions sharing a…

physics

Proven· Replicated

Conservation of Energy

The law of conservation of energy states that energy cannot be created or destroyed, only changed from one form into another. The total amount of…

Penicillin

Penicillin was the first true antibiotic, a medicine that kills bacteria and cures infections that had once been routinely fatal. Its discovery and…

physics

Proven· Replicated

The Speed of Light

The speed of light in a vacuum is a fixed, fundamental constant of nature, equal to about 299,792 kilometres per second. It is the fastest speed at…

Proven· Mathematical Proof

mathematics

The Pythagorean Theorem

The Pythagorean theorem is one of the most famous results in all of mathematics. It states that in a right angled triangle, the square of the longest…