麻豆传媒

Motion Speed Light in London City; Shutterstock ID 1093994570; purchase_order: -; job: -; client: -; other: -

Is the speed of light in high gravity different from in low gravity?

The speed of light is a constant, say our readers, but it can apparently be slower if you are far away - it鈥檚 all relative

2REAK4A world map of african countries and arabian sea, madagascar island and zambia in close up focus

Why is the east coast of Madagascar so straight?

BNYGBG Astronaut Ed White the First American to Conduct a Spacewalk on Gemini 4 Mission June 3rd 1965 - Manuevering gun in his Right hand and Tether Cable

This week鈥檚 new questions

Middle-aged woman in glasses fell asleep while reading book at home, female sleeping with open mouth on sofa near coffee table with houseplant in living room. Sleep deprivation; Shutterstock ID 2122133960; purchase_order: -; job: -; client: -; other: -

Are we conscious when we are asleep?

The surface of Venus, the irregularities of the planet. Elements of this image furnished by NASA. High quality photo; Shutterstock ID 2157724597; purchase_order: -; job: -; client: -; other: -

Could we build a habitable dome on the surface of Venus? (continued)

Two seagulls above aircraft wing

This week鈥檚 new questions

The Supermoon rises over houses in Olvera, in the southern Spanish province of Cadiz, July 12, 2014. Occurring when a full moon or new moon coincides with the closest approach the moon makes to the Earth, the Supermoon results in a larger-than-usual appearance of the lunar disk. REUTERS/Jon Nazca (SPAIN - Tags: SOCIETY CITYSCAPE TPX IMAGES OF THE DAY) - GM1EA7D0FC401

When was it first realised that moonlight must be reflected sunlight?

Ben Lomond ski village and wild kangaroos on a quiet winter's day in Tasmania, Australia; Shutterstock ID 1815999107; purchase_order: -; job: -; client: -; other: -

Would a northern hemisphere 鈥渋ce age鈥� trigger one in the south too?

Big dog meets small dog; Shutterstock ID 2045462630; purchase_order: -; job: -; client: -; other: -

How do dogs recognise that another animal is also a dog? (continued)

2GA52R4 A woman on the beach at Portrush, Co. Antrim, on Northern Ireland's north coast doing open water swimming in the Atlantic Ocean.

This week鈥檚 new questions

When going swimming in the sea is it better (scientifically, emotionally or spiritually) to enter quickly or to take your time? And there is a huge amount of sound generated in the world, which takes energy. As the sound dissipates, what happens to this energy?

What would happen to a galaxy if the black hole at its centre left?

Why did a piece of pink geranium make red flowers after breaking off?

Given the impact of cats, why don鈥檛 we domesticate more rats? (Part 2)

Which is more efficient when cooling a car, A/C or windows? (Part 2)