But why does slicing onions make you cry? The culprit is called the lachrymatory factor, a chemical that irritates the eyes. When the onion is intact, a group of compounds called cysteine ...

IN a recent discussion of the lachrymatory activity of some ethylenic compounds, Dixon and, Needham 1 have suggested that lachrymatory properties are conferred by certain substituent groups ...

Onion's tear-jerker is a compound called propanthial S-oxide. It is made by an enzyme known as lachrymatory-factor synthase, Shinsuke Imai of the House Foods Corporation in Chiba Japan ...

Onions release a compound called lachrymatory factor (LF), which makes the eyes sting and water. Scientists know that a certain enzyme causes this irritating compound to form but precisely how it ...

This volatile chemical is what’s known as a lachrymatory factor. Its volatility means that, once it’s released, it quickly evaporates and finds its way into our eyes. There it dissolves in the ...

This volatile chemical is what's known as a lachrymatory factor. Its volatility means that, once it's released, it quickly evaporates and finds its way into our eyes. There it dissolves in the ...

The lachrymatory, a vaselike receptacle used to collect mourners’ tears and purportedly found in Roman tombs, has made a strange resurgence in the second decade of the 21st century, albeit in a ...

When an onion is cut, it releases a compound called lachrymatory factor (LF), which makes the eyes sting and water. LF is a rare compound, and only four known natural types exist.

Cut onions near a range hood in the kitchen or a small fan to blow the lachrymatory factor in onions away from your eyes, ensuring tear-free operation. This is similar to freezing onions and using ...

may have referred to “the tears that live in the onion”. But why do onions actually make us cry? And why do only some onions make us blub in this way when others, including related “allium ...

Building on the success of its Drone Tear Smoke Launcher (DTSL), the Tear and Smoke Unit (TSU) is now developing new variants of tear gas shell - a lachrymatory munition - that will balance ...