Wut up uwu im bored

Which filming tool represented one of the biggest advancements in filmmaking? super 8 film format betamax standard cinema verita digital video technology

Which of the following is an example of the endocrine system maintaining homeostasis? detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response discharging an excessive amount of hormones in the blood and not sending a signal to stop production releasing hormones that speed up heart rate and blood pressure while slowing body functions like digestion and growth using sense organs to get information about the outside world and direct an appropriate body response release

Riddle me this: i am first in earth,second in heaven,appear two times in aweekyou can only see meonce in a year, althoughi'm in the middle of sea.what am i?