This week’s new questions
30 December 2020
Why do wet dogs like to shake themselves dry beside people? And what propels the constant movement of particles?
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Premium
Do we perceive colours around us differently to others?
30 December 2020
Some see the shoe (pictured) as grey and green, but others perceive it to be pink and white. Is this due to differences in our brains, and if so, do we each perceive different versions of the colours that surround us?
Why don’t high-flying birds freeze in the frigid temperatures?
30 December 2020
Birds can fly at tens of thousands of metres high. Ice forms on the wings of planes at this altitude, so why don’t the birds freeze?
