Category: Physics

Are all atoms the same in an element? Yes, all things are made of atoms, and all atoms are made of the same three basic particles – protons, neutrons, and electrons. But, all atoms are not the same. You know that the number of protons in an atom determines what element you have. What property […]

How many alternate universes are there? One obvious question that arises, then, is exactly how many of these parallel universes might there be. In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16. How many universes are there in […]

Why did NASA stop using space shuttles? In 2004, President Bush gave a speech that outlined the end of the shuttle era, without clearly identifying what would come next (or how much it would cost). This decision left NASA in limbo, as they were suddenly dependent on the Russians for access to space. Is the […]

What can cause a population to be in a uniform distribution? Uniform patterns of dispersion are generally a result of interactions between individuals like competition and territoriality. Clumped patterns usually occur when resources are concentrated in small areas within a larger habitat or because of individuals forming social groups. What are the factors for population […]

Can we sleep during grahan? Among many things, people often wonder if they can sleep during the solar eclipse. However, it is a myth that says one should not sleep during a solar eclipse. As per a study, solar eclipse causes daytime darkness, which affects the sleep pattern. Why solar eclipse is dangerous? During a […]

Is running 3km a day enough? Your body will become increasingly able to run 3km. That’s not very far, in terms of exercise. A little under 2 miles, or, at most folk’s running pace, perhaps 16–20 minutes of work. That’s not bad… But for many people once you got to that point it would be […]

What will be the angle of reflection when angle of incidence is 60? = 90 – 60 = 30 degrees. Since, angle of incidence = angle of reflection = 30 degrees. The incident ray will have an angle of reflection of 30 degrees (made with a surface normal to the mirror surface). The reflected ray […]

What is the direction of average velocity? Average velocity is the ratio of total displacement to total time. Its direction is the same as the direction of the moving object. Even if the object is slowing down, and the magnitude of the velocity is decreasing, its direction would be still the same as the direction […]

What is a good U value for insulation? The best insulating materials have a U-value of close to zero – the lower the better. Building regulations currently stipulate that for a new building, the elements must have maximum U-values as follows: Wall – 0.3 W/m2k. Roof – 0.15 W/m2k. What is the most energy efficient […]

Is the moon slowly turning red? The moon is turning ever so slightly red, and it’s likely Earth’s fault. Our planet’s atmosphere may be causing the moon to rust, new research finds. Rust, also known as an iron oxide, is a reddish compound that forms when iron is exposed to water and oxygen. Do windows […]