How does hair know when to stop growing?
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Hair does not know how long they have to grow. But they have a finite lifetime. After that they stop growing and they fall out….
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Since the Coca Cola recipe is a secret, isn’t it illegal to not list all the ingredients for a product?
They do list ingredients, as required by (U.S.) law. CARBONATED WATER, HIGH FRUCTOSE CORN SYRUP, CARAMEL COLOR, PHOSPHORIC ACID, NATURAL FLAVORS, CAFFEINE. But the law…
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What makes a substance greasy or sticky on a molecular level?
When thinking about things being sticky or slick it’s useful to think of the molecules as tiny little robots with magnetic grabber arms. Some materials…
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Important Things You Should Know About Car Covers
Car covers are good investment for protecting your car especially if you are not using it. They work well in protecting your car from dirt,…
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Why is sore throat a symptom of many common sicknesses?
Your body is a castle. Germs are invaders. Your castle has thick walls but needs gates so you can see out of it, take in…
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Why do tablets sometimes feel like they are stuck in our throat after swallowing?
They’re kind of stuck. They’ll keep moving down your throat but that feeling means that the pill hit the walls of your esophagus when they…
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Why does a laser pointer have a grainy pattern in the beam?
The light from a laser is coherent, all the waves of the same wavelength, color, and all in exact lockstep with one another. When the…
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Why do many workplace PCs still run on old software?
A few reasons: 1. Cost. Upgrading software is expensive. If an upgraded licence costs $50 that may not seem like much, but doing that for…
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What is the difference between economic recession and depression?
An economic depression is a form of a recession. A recession is determined as two or more consecutive quarters of negative GDP growth; while a…
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How do chicken eggs not crack inside their body?
Eggs can crack inside the hen, but it’s not common because eggs are actually pretty strong when forces are applied evenly over the entire shell….
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