Why can’t we walk in a straight line with our eyes closed? We can’t walk in a straight line with our eyes closed because our brain depends on visual cues, and without an external reference point, small random errors in the body’s sense of “straight ahead” build up over time, and the brain has nothing […]
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How do birds balance on a phone line? Birds can balance on a phone line because of the way their feet and legs work, their size, their vestibular system, and their balance organs. Birds can perch on pretty much anything without any trouble. In fact, they can also sleep perched on things like power lines
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How does our balance work? We balance by using our visual system, our proprioceptive system, and our vestibular system. The visual system is obviously our eyes, the proprioceptive system is in our muscles and joints, and the vestibular system is in our inner ears. Some people have much better balance than others, but we all
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How does a bicycle stay upright? It is a combination of things, but nobody seems to really know for definite. All of the reasons that a bicycle can stay upright are valid, but none of them seem to be required. You can alter many of them and, so long as the others are still in
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How do scales work? There are four different types of scales and they work in different ways. They are balances, steelyard balances, spring scales, and digital scales. Balance scales are the easiest to explain and they were the first scales used to measure the weights of objects. The first balance scales were used in the
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