𝐒𝐓𝐔𝐃𝐘 𝐓𝐈𝐌𝐄 𝐅𝐀𝐂𝐓𝐒 𝐀𝐍𝐃 𝐆𝐊

2021-01-19 07:05:25 ​​Why do Wheels sometimes appear to spin backwards?

You've seen this optical illusion in movies but it happens when you're watching in person too. It's a familiar scene to most anyone with a television: The wheels of a forward-moving vehicle will appear at first to spin in one direction. The car puts on some speed and, as you would expect, its wheels rotate faster. But then, the something goes screwy. At a certain point, the spin of the wheels appears to slow, slow, slow. Then, ever so briefly, it stops. When it resumes, the spin is in the opposite direction. By appearance, the car should be moving backward and yet, forward it rolls.

This phenomenon is known as the "wagon-wheel" effect. If, like most people, you're accustomed to seeing the wagon-wheel effect in movies or TV, its explanation is fairly straightforward: Cameras record footage not continuously, but by capturing a series of images in quick succession, at a specified "frame rate." With many movie cameras, that rate is 24 frames per second. When the frequency of a wheel's spin matches the frame rate of the camera recording it (say, 24 revolutions per second), each of the wheel's spokes completes a full revolution every 1/24 seconds, such that it ends up in the same position every time the camera captures a frame.

The wagon wheel effect, as seen on film and television, is easily explained. Less clear, however, is why people experience the wagon-wheel effect not through a screen or by virtue of strobe lighting, but out in the real world, under constant lighting conditions. There are presently two competing hypotheses that account for this effect. Open / Comment

2021-01-18 06:58:53 It's much easier to lose fat when you have a lot of muscle on your frame.

Skinny fat people need to get more weight on the bar and put on more muscle first, instead of doing a cut right away.

-Life Math Money Open / Comment

2021-01-17 07:00:36 WAYS TO PREPARE FOR A TEST Open / Comment

2021-01-16 07:25:04 Have to work for it!! Open / Comment

2021-01-16 07:20:36 ​​What caused stuffy or blocked Nose all Winter?

Do you know someone who seems to deal with a stuffy nose all winter long? Is it you? Sometimes it seems like the winter months and a stuffed-up nose go hand-in-hand. Contrary to popular belief, cold weather itself doesn't cause a stuffy nose but rather, the conditions that come with cold weather often do. Here are a few reasons why you might have a stuffy nose this winter, and what you can do about it. When membranes inside the lining of the nose get swollen it results in difficulty moving air through the nose. This is the classic definition of a stuffy nose. Sometimes nasal drainage happens alongside a stuffy nose.

Being in a cold environment does not cause a stuffy nose. Rather, stuffiness in the winter is usually the result of getting lots of colds or more active allergies during wintertime. During the cold winter months, people spend more time inside, which means more exposure to dust, allergens, and cold germs. A runny nose might be more common in the winter months, but that too many not be directly related to the season.

If your stuffy nose persists for more than a month (even with medication), or if you have symptoms such as pain, pressure, or fever, see a doctor, as this could be a sign of sinus infection. Open / Comment

2021-01-15 06:51:33 IF YOU LOOK AT WHAT YOU HAVE IN LIFE, YOU'LL ALWAYS HAVE MORE.

IF YOU LOOK AT WHAT YOU DON'T HAVE IN LIFE, YOU'LL NEVER HAVE ENOUGH. Open / Comment

2021-01-14 08:31:35 ​​Why do we Hiccup?

Hiccups can be annoying but they’re usually short-lived. However, some people may experience recurrent episodes of persistent hiccups.

At its most basic, a hiccup is a reflex. It happens when a sudden contraction of your diaphragm causes the muscles of your chest and abdomen to shake. Then, the glottis, or the part of your throat where your vocal cords are located, closes. This creates the noise of air expelled from your lungs, or the “hic” sound that feels involuntary with hiccups.

If you find yourself getting hiccups often, eating smaller meals and minimizing carbonated beverages and gassy foods might be helpful. Open / Comment

2021-01-13 07:03:31 SILENT PEOPLE HAVE LOUDEST MIND. Open / Comment

2021-01-12 09:32:16 ​​Why is our voice deeper in the morning?

For most (if not all) people, their voice sounds a lot deeper when they've just woken, compared to how they sound during the day. This effect can easily last for a few hours, like for me today. What are the biological reasons for this? I've heard that it has something to do with relaxation of your muscles during sleep, but I'm not sure how that is supposed to work, and there might be other factors at work.
During sleep while we're in a horizontal position, a certain amount of fluid collects in our upper body (read from the neck up), so our vocal cords will swell and thicken slightly. It's why our eyes look more puffy first thing when we arise. During the night, we're not using our vocal cords either but while breathing, air is still passing over them. So while the tissues swell a little, their outer membrane dries a little. To counter the drying effect, the body secretes more mucous as a protective coat. This effect is much worse in people who are mouth breathers.
Another possible reason is what voice teachers and singers think happens, too. Vocal cords, being muscles, need to stretch and contract to vary the voice's pitch. Unused through the night, they're nit as limber and can't stretch as well as later. Vocal cords stretch to reach higher pitches. If that idea sounds far-fetched, just remember opera singers and other professional singers need to limber up before performing. They practice hours each day but before a performance, they need their voice to be at its best. Hence they'll practice singing notes up and down the scale.

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2021-01-12 07:04:35
#motivation


Do something today
that your future self
will thank you for.



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