powers of numbers

1 ^-1 = 0.1 (one tenth)

1 ^-2 = 0.01 (one hundreth)

1 ^-3 = 0.001 (one thousandth)

1 ^-43 of a second = 0.0000000000000000000000000000000000000000000 of a second (one million million million million million million millionth of a second)