Interesting Fact # 938 - Sellotape

Peeling sticky tape emits X-rays.

(According to a report in Nature journal, US researchers have shown that peeling sticky tape emits X-rays strong enough to scan a human finger. They used a motorised peeling machine to unwind a roll of Sellotape at a rate of 3cm per second. The apparatus was placed in a vacuum and they measured X-rays strong enough to X-ray a human digit.)

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