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How does Kepler's first law of planetary motion refine Copernicus' model?
Wiki User
∙ 11y ago
Copernicus's model has the planets moving in circles and epicycles round the Sun. Later Kepler's first law says the planets move in ellipses, with the Sun at one focus of each ellipse, the other focus being empty. It took so long to discover that the orbits are ellipses simply because the old model was almost correct and it needed Tycho Brahe's advanced measurements to notice the difference.
Wiki User
∙ 11y ago
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What does the solar system do?
A curious question.Generally speaking, in and of itself, the Solar System doesn't DO anything except that it resides in a particular location in space. The Solar System is rather a place than a thing. The Solar System is a location where exists a group pf planets, (9 if you still think of Pluto as a planet, 8 if not) planetesimals, asteroids, comets, and our local star resides.As a group of the above named items as well as all the other stuff, the Solar system has a gravitational effect in it's local, galactic neighborhood.Perhaps you could refine your question, What is it you want to know about the Solar System.
Is space exploration is a waste of financial resources?
no ================================== Another contributor enlarged: Space exploration will be a waste of financial resources the next time a large cargo vehicle is loaded with $1,000 bills and launched, either on a course to leave earth and never return, or to re-enter the earth's atmosphere and be totally incinerated. This has never been done yet. Every cent spent so far on space exploration has been paid into the pockets of the people who mine the chemicals and minerals that go into the rockets and their fuel, refine and smelt the materials, fabricate and assemble everything from the nose-cone to the launch pad, design, build, and test the fuel tanks, the computers, the food packs, and the space-suit helmets and boots, write the procedures to organize the thousands of other people who work together during the mission ... and the people who implement the procedures ... and the people who spend the months and years after the mission analyzing the data and the samples that it returns. Not a penny leaves the earth. The money goes to people, who use it to buy stuff, including the cars they use to drive to work, the gas that makes the cars run, and the lunches they bring to work with them. Many of them also spend it on things like TV sets, clothing, movies, house payments, vacations, lawn mowers, and putting their kids through college. Notice that these purchases are very similar to purchases made by people who aren't connected with space exploration in any way. The only difference is that until now, all that money has come from taxpayers and been funneled by the government, right back into the national economy, just like any other government program. The money doesn't get shot into space.
How was the candle holder invented?
Historians note that the first "standard candles" were made from spermaceti wax. Also, a pure spermaceti candle is the measure for candlepower. Candlepower is a common term for describing light output. It is based on a measurement of the light produced by a pure spermaceti candle weighing one sixth of a pound, burning at a rate of 120 grams per hour. During the 19th century is when most of the major contemporary candlemaking developements occurred. In the 1820s, French chemist Michel Eugene Chevreul discovered how to extract steric acid form animal fatty acids. This lead to the development of stearin wax, which was hard, durable and burned cleanly. Stearin candles remain papular in Europe today. In 1834, inventor Joseph Morgan helped to further the modern-day candle industry by developing a machine that allowed for continuous production of molded candles by using a cylinder with a movable piston to eject candles as they solidified. With the introduction of mechanized production, candles became an easily affordable commodity for the masses. Paraffin wax was introduced in the 1850s, after chemists learned how to efficiently separate the naturally-occurring waxy subtance from petroleum and refine it. Odorless and bluish-white in color, paraffin was a boon to candlemaking because it burned cleanly, consistently and was more economical to produce than any other candle fuel.Today's candle is vastly different from the candles of old, the industry has grown and matured into a well oiled machine. You can purchase almost any type, size, style, or fragrance of your choice. And the internet has made it easier to come by candles than ever before.Hope this helps you guys :)
Who discovered the simple microscope?
Short answer: Zacharias Jansen Long answer: Your question is not valid for 2 reasons: 1. You cannot "discover" something if it does not exist. You should be asking who invented it, not who found it laying around somewhere. 2. A "simple microscope" is not common terminology. Simple compared to an electron microscope? or simple compared to a compound microscope? What is typically referred to as just "microscope" is technically a compound microscope. A set of multiple lenses mounted in a desktop style that allows the compounding of magnification. A compound microscope is the standard microscope in any basic lab setting. Anything more "simple" than a compound microscope would not even really be a microscope, it would either be a telescope, or simpler than that is a magnifying glass (with a single lens) The inventor of the magnifying glass was: Roger Bacon The next step up is the telescope invented by: Zacharias Jansen The next step up is the "compound microscope" which was also invented by: Zacharias Jansen (this is the simplest form of what would be recognized as or named "microscope") If you wanted to go even "simpler" and define microscope as anything that magnifies, there were reading glasses around for thousands of years prior, and even "reading stones" which were lumps of polished glass used to magnify parchment in Egypt as far back as 7000 B.C. (inventor unknown). So it really depends on how you wish to refine your meaning of simple. The magnification of anything? There is no known inventor for reading stones, his name is lost to time. Or if you mean the first invented microscope that could examine things too small for a human eye to detect, that's a compound microscope. Thus if I am guessing your meaning correctly, you meant to ask this question: Question: Who invented the compound microscope? Answer: Zacharias Jansen
Core accretion theory?
This belongs in astronomy. It's a theory of how solar systems have come to be. Basically, clouds of gas draw together and form an accretion disc (which lies in a plane equal to the planets' axes). In the center a sun is created from the large amount of particles gathering there. Elsewhere particles gather and form larger particles, which collide and gain size over time. After a long, long time a solar system has been created. All the details are not known, and this was probably the most simplistic explanation of the theory possible, try searching for accretion disc.
How do you get to the refine menu on SPORE?
whats a refine menu?
When was Google Refine created?
Google Refine was created on 2010-11-10.
What is the meaning of the science word refine?
The meaning of the science word refine means your mom
What is a sentence using the word refine?
My teacher asked me to refine the wording in my composition in order to clarify my thesis statement. The processes used to refine oil can create volatile and dangerous chemicals.
What is a same answer for refine?
maybe fine
How can you refine natural gas yourself?
no
What do refine mean?
Modify or improve
Is xenon hard to refine?
No, it is relatively straightforward.
Face of a polyhedron?
Please refine your question.
What do oil refineries do?
refine and clean oil.
To refine metal so it can be worked?
Smelt
Where does Shell refine their oil?
thin air
