Fan is electircal energy
Lamp's orignal energy source is electrical energy.
The answer to your question is called terminal velocity.
Following gastrulation, the next major development in the embryo is neurulation, which occurs during weeks three and four after fertilization. This is a process in which the embryo develops structures that will eventually become the nervous system
tress
plants
humans
bacteria
cells
grass
soil
animals
fish
insects
chicken
starfish
jellyfish
spider (or spiderman you never know)
lions
tigers
elephants
flamingo
chicken
sharks
crocodile
jellyfish
shrimps
roses
daisys
and soooooooo many more