Why Mercury is kept in Iron Vessel?
Mercury is a reactive substance. Mercury disolves only with concentrated acids to form salts. These are used in thermometers, paint pigment, used in explosives, used in medicine (optical) & as semi-conductors just to name a few. Mercury disolves with gold, zinc & other metals to form amalgams but mercury does not react with iron that's the main reason mercury is stored in iron containers. This comes in handy for storage & transporting.
Why don't Birds get Electrocuted sitting on Power Lines? Electricity flows along the path of least resistance. Birds don't get shocked when they sit on electrical wires because they are not good conductors of electricity. Another
Why Do Earthquakes Happen? Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When
What is a Rain Shadow and how does it form? A Rain Shadow is a patch of land that has been forced to become a desert because mountain ranges blocked all plant-growing, rainy
Why does your hair stand on end when you get cold? Tiny Muscles connected to each hair Follicle contract, causing the skin to bulge and our hairs to stand on end. Back when we were
What is 4D Printing? 4-dimensional printing (4D printing; also known as 4D bioprinting, active origami, or shape-morphing systems) uses the same techniques of 3D printing through computer-programmed deposition of material in successive layers to create a three-dimensional object. However,
What is Polar Vortex? A Polar Vortex is an upper-level low-pressure area lying near one of the Earth's poles. There are two polar vortices in the Earth's atmosphere, overlying the North and South Poles. Each polar vortex is a
What is meant by Pomodoro Technique? The Pomodaro is a Time Management method based on 25 minute stretches of focused work broken by 3 to 5 minute breaks and 15 to
What does the torch of statue of liberty represent? The torch is a symbol of enlightenment. The Statue of Liberty's torch lights the way to freedom showing us the path to
What is a Sonic Boom and How is it Produced? Aircraft are designed to fly at very high speeds. While they fly, aircraft generate pressure waves, or sound. These pressure waves
Why the Seats and Curtains in Theaters are Red in Colour? There is scientific reason behind it. Red is the first colour that is lost to our sight in low-light conditions,
How do Meteorologists forecast the Weather ? Predicting the Weather is a process involving many different methods that Meteorologists use, including: Forecasting Tools - Satellite, radar, and surface Maps help Meteorologists to learn the patterns of the
Why Does Cauliflower Get Brown Spots? The culprit for this discoloration is oxidation, which happens naturally the longer cauliflower is stored. The good news is that you can still cook with this cauliflower. While
What is Color Temperature in LED? Color temperature is a description of the warmth or coolness of a light source. When a piece of metal is heated, the color of light
Do Zoo Animals Hibernate? Animals that hibernate in the wild do so because temperatures drop and food supplies become scarce. In the zoo, however, animals live in a controlled environment.
What are the uses of Cobalt-60? Cobalt-60 is a beta-emitting radioactive isotope of cobalt-59. In cobalt-60 therapy, cobalt-60-generated gamma radiation is used to destroy tumors. Cobalt-60 therapy is also known as Gamma
What is the hippocampus? The hippocampus (named after its resemblance to the seahorse, from the Greekἱππόκαμπος, "seahorse" from ἵππος hippos, "horse" and κάμπος kampos, "sea-monster") is a major component of the brains of humans and other vertebrates. It's the elongated ridges
What do Red and Yellow cards in Soccer mean? The Yellow card is a caution, given for offences such as Unsportsmanlike conduct, breaking up a promising attack (BUPA), dissent, delaying the
How do you differentiate between Glass and Glass Fiber? Glass fiber (or glass fibre) is a material consisting of numerous extremely fine fibers of glass. glass fibre has high tensile strength when
Why Doctors before giving Injection to Patients blow some medicine in air while keeping Injection upward? The blood circulation in our body is kind of laminar flow (one layer above another
What is Glycemic Index? The Glycemic Index (GI) is a relative ranking of carbohydrate in foods according to how they affect blood glucose levels. Carbohydrates with a low GI value (55 or less) are more
