I am not sure if this is what your looking for but most machines use oil
Hmm this is difficult you need to go to answers.con and it come out cya :D
Answer:
Explanation:
When a force hits something, an equal amount of force is exerted back on it.
Answer:
Stage one of sleep, also known as the transitional phase, occurs when one finds themselves floating in and out of consciousness. During this NREM stage, you may be partially awake while your mind begins to drift off. This period of drowsiness eventually leads to a light sleep
Explanation:
i found it on google
