Category: Physics

What animals can see humans glow? Bioluminescent creatures such as glowworms, fireflies, and plankton are a popular subject with photographers with the low-light abilities of modern digital cameras. Are humans glow in the dark? The human body literally glows, emitting a visible light in extremely small quantities at levels that rise and fall with the […]

Are Volvos really safer? Now that we have established why Volvo is considered the safest automotive manufacturer around, the 2019 XC40 is the safest compact SUV, having been awarded a 2019 IIHS Top Safety Pick Plus. The 2019 XC60 is the safest midsize luxury SUV, having been awarded a 2019 IIHS Top Safety Pick. Has […]

Does magnitude have a sign? A vector is a quantity described by a magnitude and a direction. The magnitude is always +ve or zero. A -ve sign in front of a vector indicates the same magnitude but in the opposite direction. It has a magnitude (which is >= 0) and a direction. What is the […]

What causes viscosity? Viscosity is caused by friction within a fluid. It is the result of intermolecular forces between particles within a fluid. What is viscosity and its causes? Causes of Viscosity Due to strong cohesive forces between the molecules, any layer in a moving fluid tries to drag the adjacent layer to move with […]

How do we classify fungi? Fungi are usually classified in four divisions: the Chytridiomycota (chytrids), Zygomycota (bread molds), Ascomycota (yeasts and sac fungi), and the Basidiomycota (club fungi). Placement into a division is based on the way in which the fungus reproduces sexually. Are all fungi unicellular? Fungi can be single celled or very complex […]

What are 3 methods of energy transfer? Heat can be transferred in three ways: by conduction, by convection, and by radiation. Conduction is the transfer of energy from one molecule to another by direct contact. Can a human charge a phone? “You can charge your phone using your body electricity by making a capacitor using […]

What is Japan doing for climate change? TOKYO — Japan will be carbon neutral by 2050, its prime minister said on Monday, making an ambitious pledge to sharply accelerate the country’s global warming targets, even as it plans to build more than a dozen new coal-burning power plants in the coming years. Is Japan carbon […]

Are sweaters conductors? The sweater is an insulator. The wall is an insulator. Is Wool an electric conductor? Wool is a conductive material, which means it readily gives away its electrons. Is a sweater a good insulator? Results: Fabrics like wool and fleece are great insulators and will keep your body warm over an extended […]

Does cool air push warm air upward? This type of front is called a warm front. It generates nimbostratus clouds, which can result in moderate rain. On the other hand, when a cold air mass catches up with a warm air mass, the cold air slides under the warm air and pushes it upward. What […]

What is the meaning of hydrologic cycle? HelpCenter Definition. The water cycle — technically known as the hydrological cycle — is the continuous circulation of water within the Earth’s hydrosphere, and is driven by solar radiation. This includes the atmosphere, land, surface water and groundwater. How does pollution affect the hydrological cycle? The tiny aerosol […]