Category: Physics

How can you tell a male robin from a female? The male robin is brighter in color than the female. His eye ring, bright beak color, black head, and white throat markings all show this bird is a male. The female’s feathers look washed out and faded compared to the darker, richer colors of the […]

How long do LED flashlights last? 50,000 to 100,000 hours Do LED lights affect electricity usage? LED lights consume 80-90% less energy than incandescent bulbs, and last up to 100,000 hours, versus 3,000 hours for an incandescent. Combine this with the durable construction of LEDs, and savings extend beyond electricity. Repeat purchases in LED lights […]

Is computer a modeling science? Computational modeling is the use of computers to simulate and study complex systems using mathematics, physics and computer science. A computational model contains numerous variables that characterize the system being studied. Today’s computational models can study a biological system at multiple levels. Are simulations accurate? Simulations make creative use of […]

Can low oil cause overheating? It’s usually noticed if your coolant is low, but low oil can also cause the engine to overheat. This can occur even if your coolant level is fine. If there is too little oil in the engine, it will continue to heat up because it has no opportunity to cool. […]

Is rubella droplet or airborne? The rubella virus is transmitted by airborne droplets when infected people sneeze or cough. What type of isolation is rubella? Droplet precautions are indicated for mumps and rubella. Health-care associated infections with these agents, although rare, still occur. What type of disease is rubella? Rubella (German Measles, Three-Day Measles) Rubella […]

What are the similarities between urban and rural areas? Both the Rural and Urban Societies have an education system. Both the Rural and Urban Societies have jobless and poor people. Both the Rural and Urban Societies have cheaters. Both the Rural and Urban Societies have rich people. Both the Rural and Urban Societies have tough […]

What is the food chain of the grassland? The grass, deer and tiger form a food chain (Figure 8.2). In this food chain, energy flows from the grass (producer) to the deer (primary consumer) to the tiger (secondary consumer). A food chain in a grassland ecosystem may consist of grasses and other plants, grasshoppers, frogs, […]

What is the summary of Harry Potter and the Deathly Hallows? Without the guidance and protection of their professors, Harry (Daniel Radcliffe), Ron (Rupert Grint) and Hermione (Emma Watson) begin a mission to destroy the Horcruxes, the sources of Voldemort’s immortality. Though they must rely on one another more than ever, dark forces threaten to […]

Do spoonbills live in Florida? Locally common in coastal Florida, Texas, and southwest Louisiana, they are usually in small flocks, often associating with other waders. Spoonbills feed in shallow waters, walking forward slowly while they swing their heads from side to side, sifting the muck with their wide flat bills. What is the roseate spoonbill […]

Is Hubble telescope in space? The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. The Hubble telescope was built by the United States space agency NASA with contributions from the European Space Agency. Where is the […]