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From 1st December.

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lingwize

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What is the difference between shampoo, shower gel and 2-in-1?Shower gel, shampoo and liquid soap are not fundamentally different from each other. They primarily contain SDS (SLS, sodium lauryl sulfate), an ionogenic surfactant that gives the foam and washes; a non-ionic surfactant, usually coconut oil diethanolamine; a stabilizer-polyethylene glycol; and sodium chloride, to make it all thick and seem concentrated.

So you can wash your hands, body, and head with any of these products. But sometimes an antiseptic is added to the liquid soap, and a conditioner to the shampoo, and the gel usually has more fragrance.

Why shouldn't we kill spiders?
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In fact, house spiders are completely harmless to humans. Yet they are effective killers against domestic insects.
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Basement spiders prevent the entry of woodlice and other moisture-loving insects into apartments. Spiders hiding in air vents prey on gnats and mosquitoes. And those that live under the ceiling rid us of greasy buzzing flies.
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Moreover, house spiders are not aggressive towards people and try their best to avoid meetings with us. Unlike annoying insects, spiders do not need anything from us: they are our little helpers, "orderlies" of our homes. So even if you catch a spider at home and want to get rid of it — do not kill it, and just let it out on the street. The spider is to find a new home and benefit someone.

Is it true that batteries wear out from a full charge?

They do, especially if you store them that way.

Lithium battery wear is due to the fact that not all of the lithium ions that carry a charge to the anode are returned to the cathode during the charging process. Some of them remain in the electrolyte, reducing the capacity of the battery. Most of the life is wasted by overdischarging and partly by overcharging the battery, especially if the battery is stored charged.

In modern gadgets, the limits of discharge and charge are set so that the resource is enough for about 400-500 full cycles. If the battery is not set to 0% and 100%, it will endure more cycles.

Why can't you pull the pin out of a grenade with your teeth, like in the movies?The fact is that the grenade is a dangerous weapon that, when detonated, has a large kill radius. To prevent it from going off accidentally, the pin mechanism is made very tight. You can't just pull it out like that.

Even if you can do it with your teeth, the "hero" will then eat only porridge and ground fruit - he will not be able to chew.

@easy_why✅

Can a shark feel a drop of blood in the water?

Some movies, such as Jaws, have cemented in our minds the notion that sharks can sense a drop of blood from miles away and almost instantly get close to their prey.

Sharks do develop this sense, but not as much as we used to think. Some researchers agree that a shark can sense blood in the volume of water equal to that of an Olympic swimming pool. So if you cut yourself in the water and are sure there is no shark within fifty meters, you can rest easy.

If you're not sure, you'd better get out of here.

@easy_why ✅

Does the air press harder on a person lying down or standing up?

Equally

Unlike solid weights, all the pressure of which is concentrated at the fulcrum, the pressure of liquids and gases is the same in all directions and depends only on the depth. Air at sea level presses with a force of about 1 kg for each centimeter of skin. And this force meets an equal opposition from the body tissues. As human height is small in comparison with the thickness of the atmosphere, the body orientation has no effect on the air pressure. Blood pressure is another matter: in a standing person it is a little less in the head than in the legs, because of the weight of the blood column in the vessels.

Therefore, people with low blood pressure, if they stand up sharply, may feel dizzy due to the outflow of blood from the brain.

@easy_why✅