91色情片

This week鈥檚 new questions

Can house spiders survive when released outdoors? And why can鈥檛 I judge the temperature of bathwater with my left hand?

Could we run out of musical note combinations to create new melodies?

We found this object a couple of weeks ago in the surf on Kilvickeon Beach on the south end of the Isle of Mull in Scotland. It was originally dark and got lighter as it dried out. It has a bit of an odd smell! Both sides which look very different. Taken a few days apart, tic-tac box for scale!

What is this strange object found on a Scottish beach?

CX0F9Y M74, Phantom Galaxy Spiral Galaxy type NASA Hubble photograph

Where do galaxies begin and end?

J6125R 3D illustration. Stylized image of a brain inside a liquid with air bubbles around.

This week鈥檚 new questions

Black rook eating peace of bread; Shutterstock ID 1695627550; purchase_order: -; job: -; client: -; other: -

Is it normal behaviour for rooks to bury bread rather than eat it?

An horseshoe magnet.

Do magnets have any effects on human cells?

Have we found the answer to the mystery of the impossible rainbow?

Spectacled flying fox (Pteropus conspicillatus) baby or bub is cared for by Claudia Barton, volunteer wildlife carer at Tolga Bat Hospital, North Queensland, Australia October 2012

This week鈥檚 new questions

Common frog (Rana temporaria) sheltering from rain under toadstool (Macrolepiota procera) the Netherlands

Do frogs notice when it is raining?

Frogs not only respond to rain (or water from hoses) but humidity and the sounds of thunder, according to our readers

What is the most eco-friendly way to deal with our bodies after death?

This week鈥檚 new questions

Absolute zero is the lowest temperature but is there an upper limit?

What is the difference between a cake, a sponge and a biscuit?