Which section of instruments has instruments with the largest range possible

Which camera process came before the daguerreotype

Sarah and juan were running in the school track meet. the muscles in their arms and legs them run fast. other muscles that you cannot see were also at work. the most important muscles for this track meet were the muscles in their a) arms. b) eye. c) feet. d) heart.

Gus needs to purée his soup while it's still in the pot. what is the best tool for him to use?