If sitting cross-legged is bad for us, why is it so comfortable?
Bad? It鈥檚 the default sitting position for many people and can help the spine, say readers
Regulars
Is there any harm in drinking too much tea? Part 2
Regulars
This week鈥檚 new questions
Regulars
Why do we experience music that is out of tune as unpleasant?
Regulars
Is toothpaste essential? Aside from fluoride, what is its value?
Regulars
Would taller people benefit from bicycles with larger wheels? (part 2)
Regulars
This week鈥檚 new questions
Regulars
Does the expansion of the universe apply to atoms and objects like me?
Regulars
Could polar bears be established in the Antarctic to save the species?
Regulars
Why hasn鈥檛 time been decimalised (part 2)
Astronomers and software engineers do use a decimal unit for time, based on the Julian calendar, reports one reader
Regulars
This week鈥檚 new questions
Regulars
Why do herring have lots of small bones, and mackerel the opposite?
Regulars
Why is a cup of tea so satisfying and comforting?
Regulars
Where did the bacteria that turn milk into yogurt come from?
Regulars