91色情片

Male legs and hands Weed Out plant gardening in home garden; Shutterstock ID 2087550862; purchase_order: -; job: -; client: -; other: -

What stops us from processing weeds into tasty and edible food? Part 2

Another reader takes issue with the distinction between weeds and food

illustrating the accelerating expansion of the universe

This week鈥檚 new questions

Space

Astronomy Photographer of the Year photos are out of this world

91色情片

Ig Nobel prizes 2022: The unlikely science that won this year’s awards

Tom Gauld on an explosive experiment

Twisteddoodles on internet ads

T4KXJ5 Mature leaf mould lifted from a leaf cage and ready for use as mulch in the garden,

Environment

How to make leaf mould to nourish your garden

TOP IMAGE - Jason deCaires Taylor, Rubicon, 2016. Picture credit: @jasondecairestaylor(page 181) Stainless steel, pH-neutral cement, basalt and aggregates,installation view, Museo Atl?ntico, Las Coloradas, Lanzarote, Atlantic Ocean

Humans

Art of the ocean: How artists have depicted the marine world

This photograph is of the sky over north London on Wednesday 15th June at 8:13 am. The picture Is cropped to centre the image. The effect was not due to camera or glass of vehicle photo was taken from and looked identical to naked eye. What can have caused the contrails to end so evenly? No aircraft were immediately apparent, it did turn out to be a remarkable hot day. I am assuming my passenger?s suggestion of a glitch in the matrix leading to an incomplete sky rendering is incorrect- can you or your readers provide a more sensible explanation

Why do some contrails run in parallel and end abruptly in the sky?

DRE532 Elephant (Loxodonta africana) waving its trunk sitting in the waterhole of Gwarrie Pan, Addo Elephant Park, South Africa

Why do we have pubic hair but other animals, like elephants, don鈥檛?

People have evolved pubic hair to prevent friction or pointy plants injuring our private parts, say our readers

Why do even numbers feel 鈥榬ight鈥� to me, and odd ones 鈥榳rong鈥�? (Part 2)

This week鈥檚 new questions

World Standards Day approaches 鈥� but there is no standard date for it

Tom Gauld on the precarious nature of life in our universe