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What is laughing gas?

“Laughing gas is nitrous oxide, a compound of nitrogen and oxygen, and chemist Humphry Davy held parties where people inhaled it in the early 1800s.”

Reference: Royal Society of Chemistry

What saturation of sulfur dioxide will cause people to cough

Sulfur dioxide is a colorless gas with a suffocating, choking odor. It is toxic to humans and concentrations as low as 8 ppm will produce coughing. Incredibly, in the Odyssey, Homer describes the burning of sulfur (formation of SO2) as a way that homes were 'fumigated'.

How much of the air is nitrogen?

About 78% of the air we breathe is nitrogen.

When to not have grapefruit

If you've had an organ transplant, it is best to avoid eating grapefruit or drinking grapefruit juice (it interferes with the anti-rejection drugs in your blood).

Another fact

“Laughing gas is nitrous oxide, a compound of nitrogen and oxygen, and chemist Humphry Davy held parties where people inhaled it in the early 1800s.”

More from this shelf

What saturation of sulfur dioxide will cause people to cough

How much of the air is nitrogen?

When to not have grapefruit