91色情片

Regulars

Piles of old tyres in a garage. Romania

This week鈥檚 new questions

Does car tyre pressure affect the radius of the wheel, or the speedometer or milometer (odometer) readings? And would the Amazon turning to savannah significantly reduce the oxygen in our atmosphere?

Regulars

Comment

Would snails be better than whales for explaining big data? Maybe

Regulars

Tom Gauld on the hidden realm of fungi

Regulars

Twisteddoodles on VR headset scenarios for a cardio workout

Regulars
A runner near mile marker 20.2 in the Bronx grimaces in pain as he competes during the 2017 TCS New York City Marathon in New York on November 5, 2017. Five days after the worst attack on New York since September 11, 2001, the city is staging a show of defiance on November 5, as 50,000??runners from around the world are set to participate in the New York Marathon, under heavy security. (Photo by Don EMMERT / AFP) (Photo by DON EMMERT/AFP via Getty Images)

91色情片

Can running too far be bad for your health?

Regulars
rainy days rain drops on the window surface ; Shutterstock ID 724215220; purchase_order: -; job: -; client: -; other: -

Why does water never move in straight lines?

Regulars
Male nose close up bottom view - hair in the nostrils; Shutterstock ID 1895123341; purchase_order: -; job: -; client: -; other: -

I understand why we have two eyes and two ears 鈥� but why two nostrils?

Regulars
an australopithecus, one of our ancestors; Shutterstock ID 790742188; purchase_order: -; job: -; client: -; other: -

When did humans first start to sing? Part 2

Regulars
JAPAN. Tokyo. Bank near Tokyo Station. 2002.

This week鈥檚 new questions

Regulars

Comment

Why do so many AI company logos look like buttholes?

Feedback notes the proliferation of AI company logos, and agrees with one blogger's claim that many bear a striking resemblance to a certain anatomical feature

Regulars

Environment

Captivating images expose a ‘staged version’ of nature

Regulars

Tom Gauld on grammatical voices for use in scientific writing

Regulars

Twisteddoodles on houseplants versus zombies

Regulars

Physics

Photography contest spotlights the beauty of science in vivid detail

Regulars