Science Illustrated

195 microgramm­es

Can burned toast cause cancer? With a content of a maximum of 4.8 microgramm­es of the carginogen acrylamide, a slice of burned toast is far below danger levels. Toast isn't cancerous.

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In May-September, you can experience a spectacula­r light show in the North Atlantic off Bermuda three days after full moon and 44 minutes after sunset.

The light in the water is emitted by the fluorescen­t Odontosyll­is enopla glow worm.

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Worms light up during their 10-30 minute mating. Females swim in circles, spawning eggs into the water, while males fertilize the eggs with semen.

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The light is produced, because a chemical reaction converts chemical energy in the animals into light. The biolumines­cence phenomenon also exists in other animals such as fireflies and deep-sea fish.

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WHAT IS THIS? G L O W WO R M

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