NewScientist The Last Word - Tag 'soap' details

Tag 'soap' details

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Is it better to wash your hands with hot water?

Does washing your hands in (bearably) hot water kill bacteria? Bearing in mind the hot water is only in contact with the hands for a few seconds. I appreciate the question may be irrelevant if soap removes all bacteria anyway. Is soap 100% effective? Even so, if soap wasn't available, would hot water provide an adequate substitute to ensure the hands are free of potentially harmful bacteria?

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Asked by rob.stass
on 2010-10-11 18:27:31

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Categories: Domestic Science.

Tags: bacteria, soap, washinghands.

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Why has my bar of soap stopped removing grease and cleaning hands?
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Asked by Curious1
on 2010-09-11 14:35:26

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Categories: Domestic Science.

Tags: cleaning, washing, soap, washinghands.

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Why does soap in ice make the ice malleable? Before the tubing of a trumpet is bent, it is filled with soapy water that is then frozen. This means the ice provides counter pressure to stop the tubing crinkling at the bend, but the soap in the ice makes it malleable - why does it make it malleable?
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