Given that friction generates heat, will a cup of tea cool more quickly left standing, or through stirring?
I'm a building apprentice and I often work with a pair of radio ear muffs on. When I am using a power tool in which something is spinning extremely fast, it appears to interfere with the radio waves going into my ear muffs. How does this happen? I've been dying to know why for months now. Ed
Can you ask the Spinoff website why it continually features coverage of the show The Bachelor on television? I don't understand how a young urban website with good writers is concerning itself with this programme? Helen
We found the answers to those questions, hear them here: