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?
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 depletion region is formed in pn junction?
How depletion region is formed in pn junction? Movement of electrons to the p-type side exposes positive ion cores in the n-type side while movement of holes to the n-type side exposes negative ion cores in the p-type side, resulting in an electron field at the junction and forming the depletion region. When depletion region […]
What type of material does not allow any light to pass through?
What type of material does not allow any light to pass through? opaque Which surface is best at reflecting light? glass mirror Why can light pass through some materials and not others? Opaque materials do not allow transmission of light waves. In other words, we can’t see through an opaque object. We can only see […]
Who is known as the founder of modern political science?
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?
What colors does Brown not go with?
How does input make an output?
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 […]
Why are steam engines inefficient?
Why are steam engines inefficient? Steam engines are extremely inefficient, wasting around 80–90 percent of all the energy they produce from coal. That means they have to burn enormous amounts of coal to produce useful amounts of power. It’s inefficient because energy is wasted as the heat and steam travel from the fire, via the […]
Do I need to discharge a capacitor?
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 […]