After talking non-stop in the car today about electricity wires, my young son asked: Why is it that birds can sit on a wire without electrocuting themselves?
Yes I've read this weeks article on mobile phone vouchers which, although very informative, didn't actually tell me how the numbers work. I know that you scratch a panel off of the voucher to reveal a...
How do mobile phone vouchers work? Why can't I just guess a number with the correct number of digits in it and put that in instead of the voucher number? (Yes - I know - because it won't work - but...