![]() He knew that it would be brighter than any other artificial light, but he needed to figure out what kind of filament could make the bulb glow consistently. However, he couldn’t work at night because there were no artificial lights available at that time.Įdison was determined to create an electric light source. ![]() He would rather be in his laboratory working on inventions than sleeping. Thomas Edison, the inventor of the light bulb and one of the greatest American inventors, believed that sleeping was a waste of time. This is because the invention of light bulbs changed our relationship with sleep. If you’ve ever slept in a cabin away from electricity or gone camping, you may have noticed that your sleep improves. Big Idea #2: Ever since the invention of the light bulb, we’ve been getting less and less sleep. From here the cycle repeats itself until the person wakes up in stage one again. The sleeper’s heart rate increases and rapid eye movement begins, which means he/she is dreaming at this point. During this time, it’s difficult to wake someone up because they are completely disconnected from their surroundings when someone wakes up from this state of consciousness, they will feel groggy for a while and have difficulty focusing on anything. After the second stage of sleep comes deep sleep with only one or two brain waves per second. ![]() Your throat muscles relax, which can cause you to snore. In the second stage of sleep, your body becomes more relaxed and your breathing deepens. Salvador Dalì was able to take advantage of this by holding a spoon over a glass while he fell asleep when his muscles relaxed enough for him to drop the spoon into the glass, he would wake up with an idea for his artwork. During this time, the creative and less rational side of the brain begins producing images and ideas that can be used for art or other projects. When we fall asleep, our brain waves slow down from 12 to 30 per second to 8 to 12.
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