Trivia

Hard

You Can Test The Ripeness Of Which Fruit With A Black Light?

Kiwis
Pineapples
Bananas
Apples

Answer: Bananas

In 2008, researchers working on a collaboration between the University of Innsbruck and Columbia University discovered a novel way to test bananas for ripeness: using a black light.

The yellow appearance of bananas under normal light is mainly due to natural pigments (carotenoids). But as bananas ripen, the chlorophyll in them breaks down and will cause them to fluoresce brightly (with a blue glow) under a black light. What’s most interesting about the discovery is that it appears to be unique to bananas, other plants don’t exhibit the same fluorescing process during the breakdown of their chlorophyll.

Trivia

Hard

Which Of These Natural Disasters Has The Potential To Change The Length Of A Day?

Trivia

Easy

The Majority Of History’s Massive Volcanic Eruptions Have Occurred Where?

Trivia

Easy

Abundant Rose Bushes in Grape Vineyards Serve What Purpose?

Trivia

Hard

Modern Arcade Games Evolved From Which Unlikely Ancestor?

Trivia

Hard

The Golden Gate Bridge Was Originally Slated To Be Painted What Color?

Trivia

Very Hard

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Trivia

Hard

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Trivia

Hard

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Trivia

Hard

Which Letter Appears Once a Year on the Moon’s Surface?

X Y
J H

Trivia

Easy

In The Early 20th Century, Many Aircraft Engines Were Started With A?