When I can’t remember something, how do I know that I once knew it?
Sometimes you know that a memory is in your head, even if you can’t recall it. How does this “meta memory” work? Readers respond
Regulars
Do I create gravitational waves when I crash onto the sofa?
Regulars
Why do some people like gambling so much? (continued)
Regulars
This week’s new questions
Regulars
Why do we hear two musical notes, an octave apart, as the ‘same’ note?
Regulars
Is there any harm in drinking too much tea?
Regulars
This week’s new questions
Regulars
Should we genetically engineer cats to stop their urge to kill?
Regulars
If there are other universes, would our universe feel their gravity?
Regulars
Why do wet dogs like to shake themselves dry beside people? (continued)
Why do dogs like to shake themselves dry besides a person rather than doing this as soon as they get out of the water? (continued)
Regulars
This week’s new questions
Regulars
How far can you go before the sun no longer appears the shiniest star?
Regulars
Why do people’s hands shake when they are nervous?
Regulars
In fizzy drinks, why do only larger bubbles oscillate as they rise?
Regulars