They were small because then they were less noticeable for the German aircrafts
Passenger airplanes usually fly around 30,000-38,000 feet. Small aircrafts fly lower and military aircrafts can fly higher.
a small parachute becouse it has less air ressitance meaning it traps less air than a big parachute.
small
The man with a small parachute will fall faster.
Small particles move faster across the membrane.
Gremlins, small elf-like creatures that caused mischief, were given the blame for mechanical problems on British aircrafts during WW2
small
Osmosis.
Oxygen is a small molecule that can easily diffuse across cell membranes, including the membranes of red blood cells. This passive diffusion process is faster and more efficient than active transport for molecules like oxygen that are able to freely move across cell membranes.
small dalls
active transport