女生小视频

2FN4E6Y Man cycling on a country road with his dog on a leash. Backview of a man who riding with his dog that running next to him. Healthy lifestyle.

Health

Why adding cross training into your exercise routine is the way to go

There are huge benefits to ringing the changes when it comes to exercise, finds committed runner Grace Wade when she analyses the science

3CHF9KF Towels drying on stone wall

Is it more efficient to dry towels hung up portrait or landscape?

cinematic flight through dark deep space asteroid field with stars; Shutterstock ID 2687214359; purchase_order: -; job: -; client: -; other:

If Earth exploded, how many rocks would have signs of life?

(Original Caption) 7/5/1946-The roller coaster is a rough ride, but do they love it! This unposed photo was taken by the intrepid photographer from a front seat, as the car made a stomach-dropping descent. A companion clutched the camera while he clicked the shutter. ACME ROTO SERVICE FOR IMMEDIATE RELEASE BPA 2 #124

Why do we scream in fear? part 3

Gold jewelry with space for writing; Shutterstock ID 735656746; purchase_order: -; job: -; client: -; other:

Why do jewellery chains become so tightly knotted together? part 2

2B5DJY0 Row of homemade jars of jam for sale on the market counter.

This week鈥檚 new questions

‘Roughly 109.5 golden retrievers’: a new way to measure ice

Life

Five stunning images from the Close-up Photographer of the Year awards

Tom Gauld on the social sciences

Twisteddoodles on the ‘vibes’ being off

This week's cartoon from Twisteddoodles

Environment

Sebasti茫o Salgado’s stunning shots of the world’s icy regions

Why are MRI machines so noisy and what stops us making them quieter?

Will the ocean ever be too salty for life to thrive? Part 2

If all Earth鈥檚 water were put in a ball, how large would it be? Part 2