What will the Falcon 9 rocket from SpaceX be used for? Falcon 9 is a two-stage rocket designed from the ground up by SpaceX for the reliable and cost-efficient transport of satellites and SpaceX’s Dragon spacecraft. How many times has Falcon 9 been reused? Elon Musk, SpaceX’s founder and CEO, has said the newest version […]
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Which is bigger an ecosystem or a biome?
Which is bigger an ecosystem or a biome? A biome is even bigger than an ecosystem. A biome is a large geographical area that contains distinct plant and animal groups which are adapted to live in that environment. There can be many different habitats in a biome. What is the important of biome? Biomes play […]
Who said light is a particle?
Who said light is a particle? Einstein Who discovered the particle nature of light? The mathematical theory of electromagnetism by James Clerk Maxwell, set up in 1864, led to the view that light is of electromagnetic nature, propagating as a wave from the source to the receiver. Heinrich Hertz discovered experimentally the existence of electromagnetic […]
What 2 elements did Marie Curie discover?
What 2 elements did Marie Curie discover? And Marie was proven right: in 1898 the Curies discovered two new radioactive elements: radium (named after the Latin word for ray) and polonium (named after Marie’s home country, Poland). What are 5 facts about Marie Curie? 5 facts about Marie Curie, chemist, physicist, and Nobel legend She’s […]
What do the three apparitions symbolize?
What do the three apparitions symbolize? Lesson Summary Here, Macbeth encounters three apparitions: a severed head, a bloody child, and a royal child holding a tree. Each of them respectively represents Macbeth himself, his childish naivete, and Malcolm’s offensive from the Birnam Wood. How does the second apparition come true? What does the 2nd Apparition […]
What is difference between water potential and osmotic potential?
What is difference between water potential and osmotic potential? Solute potential (Ψs), also called osmotic potential, is negative in a plant cell and zero in distilled water. Because of this difference in water potential, water will move from the soil into a plant’s root cells via the process of osmosis. This is why solute potential […]
Who started the high-speed rail in California?
Who started the high-speed rail in California? The CAHSRA was established by an act of the California State Legislature and tasked with presenting a high-speed rail plan to the voters. This plan, Proposition 1A, was approved by voters in 2008 after the presentation and was assigned a $9 billion bond to begin construction on the […]
Which change of state takes place when a gas loses energy?
Which change of state takes place when a gas loses energy? In evaporation, matter changes from a liquid to a gas. In condensation, matter changes from a gas to a liquid. All matter is made of tiny moving particles called molecules. Evaporation and condensation happen when these molecules gain or lose energy. Will water freeze […]
How does an aneroid capsule work?
How does an aneroid capsule work? Inside an aneroid barometer is a small capsule. This capsule has had the air pumped out of it. When the air pressure rises, the sides of the capsule are compressed. The capsule is attached to levers which move a needle as the air pressure squeezes the capsule. What is […]