Category: Physics

Do trees grow out of the air? But the truth is, trees are actually formed largely out of the air. (Yes, air!) Trees, and all photosynthesizing plants, use the energy of the sun to split atmospheric carbon dioxide into its constituents: oxygen and carbon. And carbon is the primary building block of the tree — […]

How the body gets rid of waste? Body Waste: Urine In your body, the excretory system helps to keep salts and urea from building up to dangerous levels and becoming toxic. The kidneys are two bean-shaped organs that remove these toxins from your blood and produce urine to carry them from the body. Why is […]

How does input make an output? How does input make an output? The computer sits between the input and output devices. A computer program processes and digitises the input information. The result is then sent to an output device such as a screen. What is an input-output diagram? Input-output diagrams are the first step in […]

Who is known as the founder of modern political science? Niccolò Machiavelli What is socialism communism and capitalism? The word socialism also began to be used in the 1830s, to describe a system different from capitalism. Socialism held that groups of people should own and regulate the economy for the benefit of all the members, […]

What period in the periodic table is iron found in? Fact box Group 8 1538°C, 2800°F, 1811 K Period 4 2861°C, 5182°F, 3134 K Block d 7.87 Atomic number 26 55.845 State at 20°C Solid 56Fe How many types of iron are there? two What are two iron types? Heme iron is found in meat, […]

What colors does Brown not go with? This is because brown is a warm color, which would not look good with blue or purple, which are cool colors. What is the best wall color for brown furniture? If you have a dark brown sofa or other furniture, the best way to complement them is with […]

Do I need to discharge a capacitor? You must discharge the capacitors before working on power supply circuits so you won’t get shocked. There are three different ways to discharge large filter capacitors in a power supply: with a screwdriver, the leads of a socketed 100 watt light bulb, and the leads of a high-wattage […]

What is your availability start? Applicants are often asked what date they are available to start work if they were to be hired. The most common time frame for starting a new position is two weeks after you have accepted the job offer. Should I put my availability on my resume? 12) Availability Save the […]

Is NBA older than NFL? “NBA at 50” selected the 50 greatest players in NBA history all the way back to the first years of the league. The NBA began as the Basketball Association of America, with its first season being 1946-47. Since the NBA began in 1946, the NFL still edges them out by […]

What is the source of the energy released in fission and fusion reactions? Nuclear Fusion reactions power the Sun and other stars. In a fusion reaction, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of […]