chemistry

Besides making wigs, or perhaps some rather bizarre clothing and artwork, there aren't a lot of practical uses for discarded human hair.

It is nearly impossible to get every last drop of liquid foods out of their containers. Ketchup and syrup are among the worst offenders. In fact, up to 15% of liquid foods can be wasted due to such inefficient packaging.

Boiling an egg is useful. It kills bacteria, such as Salmonella, which may be on or even inside the egg.

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What have you eaten, lately?

Dear Homeland Security guys, Please leave me alone. I am not providing any information that isn't already on YouTube. Nor am I suggesting that anyone try this.