51动漫

R1D8PY Silverback western lowland gorilla sitting down to eat at Zoo Atlanta in Atlanta, Georgia. (USA)

Could aliens work out if a human or an ape built the tomb they lie in?

If these future visitors were advanced enough to travel to Earth, says one reader, then they would be likely to have the technology to enable them to work this out

Kecskemet, Hungary - August 28, 2021: Leonardo C-27J Spartan. Military transport plane at air base. Air force flight operation. Aviation and aircraft. Air lift. Military industry. Fly and flying.; Shutterstock ID 2126430722; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

Close up of glass of a freshly prepared gin and tonic with lemon slices and spoon on the counter.; Shutterstock ID 482388439; purchase_order: -; job: -; client: -; other: -

Why do ice cubes for my gin and tonic often shatter in the mould?

2HMRRGF Madrid, Spain - March 6th, 2021: Isidore of Seville statue at National Library of Spain, Madrid. Medieval Spanish scholar

Once life is established, is intelligence inevitable? Part 2

2JF72KW Digital hands reaching each other, artificial intelligence creativity concept

This week鈥檚 new questions

Blue-naped parrot, Tanygnathus lucionensis, colorful parrot, native to Philippines. Green parrot with red beak and light blue rear crown sitting on twig isolated against dark green jungle background.; Shutterstock ID 1911703984; purchase_order: -; job: -; client: -; other: -

Why didn鈥檛 green fur evolve among mammals?

Man looks to a huge brain. Mental capacity, cognitive processing, and human interaction. This is a 3d render illustration; Shutterstock ID 2341475275; purchase_order: -; job: -; client: -; other: -

Would your brain run out of storage space if you could live forever?

FY9W05 International Space Station and astronaut in outer space over the planet Earth. Elements of this image furnished by NASA.

This week鈥檚 new questions

Close up of an augmented reality (AR) sand table, an advanced technology to create a learning tool for students.; Shutterstock ID 1857112591; purchase_order: -; job: -; client: -; other: -

As average sea levels rise, will map heights need to be recalculated?

cute two cats on a balcony railing; Shutterstock ID 1662554986; purchase_order: -; job: -; client: -; other: -

Are humans the only animal to experience vertigo?

Experiments suggest that other animals also experience vertigo, say our readers - but we will need to wait for improved animal-human communication to be sure

Why does a duvet bag up all the other items in the washing machine?

This week鈥檚 new questions

Is there a minimum size for an atomic bomb?

When I step into a hot shower, why do I get a shiver down my back?