Armband mimics a person's touch

Imagine a virtual world where someone touches your arm during a conversation and you feel the sensation as though they were with you.

Research brings 'smart hands' closer to reality

Using your skin as a touchscreen has been brought a step closer after UK scientists successfully created tactile sensations on the palm using ultrasound sent through the hand.

Video: Why it hurts to eat hot peppers

You have probably had the burning sensation of eating a jalapeno or other tear-inducing pepper. What causes this painful fire in your mouth? The short answer is capsaicin. But what exactly is capsaicin? How does it work? ...

Researchers uncover pain-relief secrets in hot chili peppers

Anyone who has ever bitten unknowingly into a red hot chili pepper remembers the unhappy result – burning, painful sensations that make one's mouth feel as though it has caught on fire. Yet the very chemical that causes ...

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