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Why is helium important for MRI machines?

“Liquid helium is used to cool the superconducting magnets in MRI machines.”

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'.

Where was helium first discovered?

Helium was discovered in the Sun's light in 1868, decades before it was found on Earth.

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

“Liquid helium is used to cool the superconducting magnets in MRI machines.”

More from this shelf

What saturation of sulfur dioxide will cause people to cough

Where was helium first discovered?

When to not have grapefruit