Category: Physics

How can longshore drift be stopped? Groynes control beach material and prevent undermining of the promenade seawall. Groynes interrupt wave action and protect the beach from being washed away by longshore drift. Longshore drift is the wave action that slowly erodes the beach. Is longshore drift erosion or deposition? The material is transported through suspension, […]

Why do we use thin gold foil? For the scattering experiment, Rutherford wanted a metal sheet which could be as thin as possible. Gold is the most malleable of all known metals. It can easily be converted into very thin sheets. Hence, Rutherford selected a gold foil for his alpha-ray scattering experiment. What was most […]

Is it possible to increase the temperature of a gas without giving it heat? Yes, during adiabatic compression the temperature of a gas increases while no heat is given to it. In compression work is done on the gas i.e. , work done is negative. Hence, internal energy of the gas increases due to which […]

How is flux generated? When a coil of wire is moved through a magnetic field a voltage is generated which depends on the magnetic flux through the area of the coil. Electric motors and generators apply Faraday’s law to coils which rotate in a magnetic field as depicted in Figure 3. In this example the […]

Is violet light harmful? Too much violet light can sunburn your eyes and your skin and cause cancers. Blue light though is able to pass straight through the lens and cornea to the retina and light-sensitive nerves, causing damage to the macular pigment in the eye. This ultimately leads to macular degeneration, which could lead […]

Are switch loops legal? Under the new requirement you can still do a switch loop as long as there is a neutral. So if you’re going to do a switch loop it has to be done with 12/3 or 14/3, and just cap off the neutral at the switch. Are 3-Way switches required by code? […]

How is the law of definite proportions important? The law of definite proportions dictates that a name is always associated with a specific ratio of elements found in a chemical compound. If the ratio of elements is different from that specific ratio then it is not the same compound and therefor has a different name. […]

What is ad baculum fallacy? Argumentum ad baculum (Latin for “argument to the cudgel” or “appeal to the stick”) is the fallacy committed when one makes an appeal to force or threat of force to bring about the acceptance of a conclusion. What is red herring fallacy? This fallacy consists in diverting attention from the […]

What is a dark empath personality? Psychology reveals a new personality type: dark empaths. This personality type defines those people who seem cold and have dark personality traits, but who also are kind, compassionate, and emotionally connect to others. It’s a new psychological construct that would define a small percentage of the population. Who is […]

What causes matter to clump together? Gravity is the force that all objects with mass exert upon one another, pulling the objects closer together. It causes a ball thrown into the air to fall to the earth, and the planets to orbit the sun. The tiny particles that make up matter, such as atoms and […]