Tag Archives: Smell

The truth about why things smell bad: Vibrating molecules [Biology]

For over a century, our sense of smell has been explained with the “lock and key” hypothesis, which holds that each odor molecule has a particular shape that allows it to fit into particular smell receptors in the nose. But now a controversial study in… Continue reading

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Biologists reveal why mosquito repellent DEET is doomed to fail [Bug Overlords]

Everyone’s favorite mosquito repellent, DEET, works by making a smell that mosquitoes can’t stand, or by blocking their ability to smell humans, depending on who you ask. But even the greatest repellents won’t stop all mosquitoes. New evidence suggest… Continue reading

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