Curiosity Tea

2021-05-04 13:33:30 ​​Why do Monstera leaves have holes?

Montseras have developed holes because of the lighting conditions they naturally live in. Monsteras grow from the forest floor, vining up to capture the light that enters through the overhead canopy. The only way plants can survive in such environments is by catching as much of the small rays of sunlight that make their way through the canopy. The holes in the leaves are due to the conditions in deep jungle which the plant lives in its natural environment. Most of the time, it is hidden from sunlight by the dense crowns of trees and photosynthesis must be done thanks to the bright sun rays, which only occasionally fall on the leaves. These rays pass through the foliage of trees in gusts of wind, so that where they will fall is impossible to predict. Monsteras create holes in their leaves to resist strong winds.

Another key reason is holes to allow a better flow of water to their roots. In the tropical understory, flecks of sunlight make it through the canopy intermittently and erratically. The holes allow leaves to spread out over greater areas without needing to expend energy and nutrients growing extra leaf area to fill this space. That, in turn, may improve the plant's chances of catching sunflecks. Open / Comment

2021-05-03 22:15:22 Do you know any fashion channels on Telegram?

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2021-05-02 12:37:10 ​​Why Tanker Trucks are made cylindrical and not cubical?

Many kinds of liquids are transported by road and railway. The tanks carrying these liquids are made cylindrical in shape and not cubical. Why is this so? If tanks are made in cube or cuboid, the capacity of the tanks will increase and they can hold more cargo. Even the large tanks used in refineries for holding the petroleum products are cylindrical in shape.

This is because cylinders don’t have corners. Cubes and cuboid have more space, but their corners make them unsuitable for carrying fluid. When carrying liquids under pressure, the stress acting at a corner is more than the stress acting on the sides. Because of this, the stress concentrates more at the corners. And because of this there are more chances of a tank to buckle or break if they are made cubical. There are less chances for cracks in a cylindrical tank than in a cubical tank. Even the ends are made semi-spherical in modern tanker trucks. The LPG cylinders used for cooking are also made cylindrical. This is not to make them roll easily. If you observe closely, you will find that the LPG cylinder is not flat bottomed. It has a false bottom welded to the bottom of the cylinder.

This is why all the tanks transporting liquids are made cylindrical in shape. One more advantage is that, the liquids can be easily drained in these tanks. Open / Comment

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2021-04-30 05:33:43 ​​Why Airplanes Use Kerosene Rather Than Plain Gasoline for Fuel ?


From small airplanes like the Cessna to large twin-engine jets like the Airbus A380, all combustion-powered airplanes require fuel to operate. Like combustion-powered automobiles, they burn fuel to create the power needed to achieve and maintain a safe flying speed. While there are several types of aviation fuel, though, most consist of kerosene. So, why do airplanes use kerosene rather than plain gasoline for fuel?

Kerosene has a lowering freezing point than gasoline, making it naturally protected against freezing in otherwise bone-chilling temperatures. But regardless, it takes cooler temperatures for kerosene to freeze than it does for gasoline to freeze. In addition to a lower freezing point, kerosene has a higher flash point than gasoline. Flash point refers to the temperature at which a combustible chemical or substance ignites and turns to vapor. With its higher flash point, kerosene offers higher octane ratings to achieve greater power and efficiency when compared to its gasoline counterpart. In fact, this is the main reason kerosene fuel is used in airplanes. Kerosene has a lower viscosity rating during flight operation than gasoline, meaning it’s more watery and not as thick or “gummy” as gasoline. Even at high altitudes with naturally cold temperatures, kerosene has minimal viscosity, allowing it to easily travel through the airplane’s engine and connected components.

Considering that large commercial airplanes like the 747 burn roughly 1 gallon of fuel per minute, it’s important for airlines to consider the cost of fuel. The good news is that kerosene is significantly cheaper than gasoline. Open / Comment

2021-04-28 17:34:19 ‍Everyone wonders from time to time how to get additional income, especially when the financial situation is a model of instability.

This suggests that if you yourself do not understand financial instruments and don't learn how to invest, you will not get far. A good option is to start learning how to trade on a platform with a training demo account and a first deposit that's a comfortable amount. One platform worth recommending is Binomo. See for yourself: the interface is intuitive, even for a beginner, and there are trading strategies.

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2021-04-28 06:49:33 ​​How do we store Nuclear/ Radioactive waste?

Radioactive waste is a type of hazardous waste that contains radioactive material. Radioactive waste is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, rare-earth mining, and nuclear weapons reprocessing. The storage and disposal of radioactive waste is regulated by government agencies in order to protect human health and the environment.

This waste is broadly classified into low-level waste (LLW), such as paper, rags, tools, clothing, which contain small amounts of mostly short-lived radioactivity, intermediate-level waste (ILW), which contains higher amounts of radioactivity and requires some shielding, and high-level waste (HLW), which is highly radioactive and hot due to decay heat, so requires cooling and shielding.

In nuclear reprocessing plants about 96% of spent nuclear fuel is recycled back into uranium-based and mixed-oxide (MOX) fuels. The residual 4% is fission products which are highly radioactive High Level Waste. This radioactivity naturally decreases over time, so the material is stored in appropriate disposal facilities for a sufficient period until it no longer poses a threat. Open / Comment

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