Quiz question to which I am really struggling to find anything on the internet - any help would be appreciated. Surname of 18th/19th century French naturalist who became first director of Natural...
Chiefly a mixture of methane and other hydrocarbons, and explosive when mixed in certain proportions with air, combustible coal gas is commonly known by what name (4-4 crossword terms)
Some radios are still calibrated in wavelenghs rather than frequency; which number must be divided by the frequency in megahertz to obtain the wavelengh in metres?
Take the element with atomic no 92 and the atomic mass 238-0289. The impure oxide obtained during the processing of the ore of this element is called by which 10 letter name that sounds like something...