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CE915X close up of a purple silk garment showing a button detail. Image shot 2011. Exact date unknown.

What causes clothes to crease, and why does ironing remove them?

Man used the wooden back scratcher for his back itch therapy in small trees background closeup.; Shutterstock ID 2142811281; purchase_order: -; job: -; client: -; other:

What is an itch, and why can a simple touch calm it?

2Y09MFX Ceramic jug hanging on a wooden post in a green garden, Eibergen, Gelderland, the Netherlands

What is the fastest way to empty a full jug of water?

Woman in green swimsuit relaxing in outdoor jacuzzi with clean transparent turquoise water. Organic skin care in hot bath in luxury spa resort.; Shutterstock ID 648664720; purchase_order: -; job: -; client: -; other:

Why can鈥檛 we cool water as quickly as we can heat it? part 2

B0729K Television and cartoon characters, depicted in the form of toy dolls, making up a window display.. Image shot 03/2008. Exact date unknown.

Why do we feel emotional about fictional characters? part 2

Low angel rear view shot of young woman running upstairs of bridge in art district, city downtown. Hipster runner. Reaching goal. Personal challenge. Personal milestones. Youth culture. Street style. Street culture.

This week鈥檚 new questions

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Researcher finds that cats lie around for a ridiculous amount of time

Tom Gauld: ‘Trust me, it’s safe’

Twisteddoodles on how to make a cell look its very best

AACWGT Greenland Ilulissat Melting water streams from iceberg calved from Ilulissat Kangerlua Glacier Jakobshavn Icefjord floating on c

Environment

When will the AMOC collapse? We don’t know, but should still prepare

Why can鈥檛 we cool water as quickly as we can heat it?

Do olfactory illusions exist, similar to optical and audio illusions?