Las respuestas más precisas y completas de la web elaboradas por profesionales de cada área.

Login

Por qué La Luna no choca con la Tierra?

Por que la Luna no choca con la TierraPor que la Luna no choca con la Tierra

La Luna se traslada en una órbita elíptica al rededor de la Tierra.

La Luna no choca con la Tierra por que está en órbita. Es gracias a su ángulo de impulso y su velocidad de desplazamiento que la Luna no choca con la Tierra.
Se desplaza transversalmente a una velocidad suficiente para establecer una órbita elíptica al rededor de la Tierra.

Si la velocidad de la Luna disminuyera significativamente, la Luna caería sobre la Tierra debido a la atracción gravitatoria. Pero el ángulo de escape y la velocidad son casi perfectos.
Es más este satélite natural se está alejando de la tierra a razón de unos pocos centímetros cada año (entre 3 y 4 centímetros).

Explicadolo de otra forma, La Luna siempre esta en caida hacia la tierra, pero la vecidad y su dirección de desplazamiento, no le permiten chocar. Tambíen se puede entender que los objetos que estan en órbita al rededor de la tierra si caen, pero la Tierra constantemente se curva, se mueve debajo de ellos antes de que estos pierdan altura.

Hace cientos de años Isaac Newton lo explicó muy bien con su esquema famoso: Esquema del cañón de Newton.

La trayectoria de la Luna se describe como una elipse de baja excentricidad a una distancia media de 384.400 km de la tierra y en sentido antihorario.

El ejemplo de Isaac Newton

El cañón orbital de Newton

Newton explicó el funcionamiento de las órbitas con un ejemplo muy fácil de entender "El cañón orbital" :

- Si un cañón dispara una bola con una velocidad inicial baja, la trayectoria de la bola se curva e impacta contra el suelo.

- Aumentando la velocidad inicial, la bola de cañón impacta en el suelo cada vez más lejos del cañón, debido que mientras la bola sigue cayendo, el suelo también se curva.

- Si se dispara la bola con suficiente velocidad, el suelo se curva al menos tanto como la bola al caer, por lo que la bola nunca impacta contra el suelo. (Esto es una órbita sin interrupción).

- Para cualquier combinación de altura sobre el centro de gravedad y la masa del objeto hay una velocidad específica que produce una órbita circular.

- Si la velocidad de disparo aumenta más allá de esta velocidad, las órbitas serán elípticas.

Referencias:

Referencias:

Gracias a Wikipedia y Discovery Channel por compartir los videos.

Galeria

Comentarios

minhal anees: This article will give you more detailed understanding of the background and technology that Spectral DNC is using. It will also show you the benefits of their latest product and the correct way of usage. www.technologyalone.com

How do you find out what the best available plan is for your particular situation out of all the plans offered by the many major California health insurance providers? If you buy your health insurance plan directly from the insurance company, www.healthinclinic.com

As a 18 year veteran of the home inspection industry one of the best pieces of advice I can give a home buyer that has gotten their home inspected is; Read it carefully and get a contractor or trade professional to investigate any major findings written up in the report before closing. www.catchyhomes.com

Although global travel insurance does, by its nature, cover the majority of the world, the current climate ensures that there are some places where the likelihood of incident means that UK travel insurance providers are unable to offer protection. www.awesometravelling.com

shopping on the Internet is growing exponentially. All of the large stores promote Internet shopping to their prospective customers. Their faith in the Internet is borne out by the latest figures with an over 50% rise in the UK for the 1st quarter of the year. www.shoppingbulk.com

Before even getting started with the history of gothic fashion one must know what gothic culture is and how it started the current gothic fashion which is admired on such extent. Gothic culture is indeed moiety groups or division of several kind of Gothgroup of culture constituted in early days of England. www.betweenfashion.com

Auto body parts are products which can be pricey from time to time. The good news is that there are ways to buy the auto part items which you need at a fraction of the usual cost which will save you money in the long run. www.autosworthy.com

An old saying goes, "the two best days of owning a boat - the first, when you buy it and the second, when you sell it. The same seems to apply to some start-up businesses too. As financial experts point out, a business can be sold only once. www.spendbusiness.com

Basically, trade finance has been in existence for many thousands of years - and one can trace the roots of trade finance and structured trade finance right back to the early days of China and the silk route, Mesopotamia and Europe. www.financedisks.com

Don't stand in front of the door! Experts predict, as the economy continues its upward movement, technology professionals in large numbers will soon be headed for the exits, looking to switch jobs and find greater opportunities. www.benefitoftechnology.com

since its coverage options are limited and the medical needs of seniors are almost always greater than those of younger people. For this reason, comparing health insurance plans is important when it comes to protecting yourself financially and medically in later life. www.specifichealthy.com

By staging or setting the home up in a welcoming and inviting way, they discovered that potential buyers would form emotions with the home and that increased sales. It became their #1 marketing tool, and the entire building industry changed. www.homeimprovementinterest.com

but those that travel for business often overlook the importance of this protection. Business travel insurance is simply a good idea because it can provide you with the protection that you need whether you are traveling just a short or long distance away from home. www.expeditetravelling.com

Have your shopping experiences become monotonous off late? Are they losing the charm? We all love and enjoy shopping. It acts as a huge stress-buster and what's more, you get to spend quality time on yourself. www.shopinleisure.com

Fashion websites can perform better if they are optimized well. However, optimizing a fashion website is different and difficult from the rest. With a huge competition, marketing your website definitely becomes a challenge. www.fashiondebates.com

Steve is a successful business owner who takes his business very seriously. He focuses on growing his business and has several employees. People love his products and services and are sharing them with others. businessesgroup.com

Car finance has become big business. A huge number of new and used car buyers in the UK are making their vehicle purchase on finance of some sort, and many people choose to arrange it through the dealership. helpinfinances.com

A business philosophy for consultants regardless of their professional discipline. How to make a personal connection in developing solutions during consultative engagements. consultationforyou.com

There has been in a rise in terms of technology blog online, dedicated to helping readers understand and stay in touch with the tech world all around them. People love to go on such blogs and find answers to their questions or simply browse around, looking at the different topics. technologicalreviews.com

Health insurance has proven itself of great help and financial aid in certain cases when events turn out unexpectedly. In times when you are ill and when your health is in grave jeopardy and when finances seem to be incapable to sustain for your care, health insurance is here to the rescue. healthnpills.com

Our home should be a reflection of our personal style. With a custom home built to your specs you can have the perfect home designed exactly to suit your needs as well as your wants. soothinghomes.com

Most recently, Allegiant Travel has been listed 14th on Forbes America's Best Small Companies with an estimated $843 million in sales. This report will examine how Allegiant has been become "the most consistently profitable U. S. airline, traveloversee.com

This has become the perfect haven for people who love to shop, eat, relax or simply unwind. With over hundred stalls and shops, almost anything and everything is for sale. There's not much that goes on and satisfies people's needs that's not found in a shopping center. anticipateshopping.com

With the ever-growing popularity of the internet, access to different clothing is easier than ever for the average consumer. One area that continues to spread globally, previously rarely seen in the West, is Asian fashion. fashionwanabe.com

Owning a car is already an expensive investment anyone can make. However, it doesn't end there. The cost of auto insurance can also be a mounting expense if you are not careful. wholeautos.com

There are few business credit building companies out there, however, those that are out there are taking advantage of the lack of knowledge from the general public regarding business credit and how to get a business loan. assistbusinesses.com

The commercial truck financing market is structured in a very specific, goal oriented system. The following article will help you understand how the game is structured in an effort to give you a better understanding of how it's played. financeinstant.com

With staff sizes and budgets restricted or diminishing, and top executives up and down the ladder under pressure to do more with less each year, many savvy executives are seeking help among the seeming army of consultants of every stripe to get their companies on the profitability track. consultationreferences.com

For those who are looking for a speaker system that can shatter their windows and also their bathroom tiles and have stopped for taking a look at the Definitive Technology Procinema 800 review, well, they will be in for good news, technologicalninjas.com

The health and motivation for shift work has been known to have its own peculiar demands. This has set it apart from jobs that have traditional hours of work. Shift work has its own health merits. conditionhealthy.com

GeraldTut GeraldTut: canadian pharmacies shipping to usa canadian pharmacy canadian pharmacy online viagra porn canadianpharmacy viagra price

BrianDioni BrianDioni: Oakley Sonnenbrille Prizm If you would like be a far better particular person, do not forget to get truthful opinions from other individuals. Sometimes, you cannot see your personal flaws because you do not have an objective look at oneself. Sincere comments from other individuals can be favourable and will help you recognize places that you should boost. https://www.simply-concrete.de/images/sim2/4010-clarks-herrenschuhe.jpg Get ache medication when you first start sensing soreness. Some people usually dismiss back problems, thinking that it can go out, but the truth is that you'll be happy of your pain sooner through taking medicine when you start off sensing it. Don't hang on for taking your medicine feel reduction that much faster. https://www.stasi-live-haft.de/images/sta2/2009-adidas-gloro-16.1-weiß.jpg

Richardnub Richardnub: New Balance Femme Beige Taupe Learn how to play with all the shutter speed. It is possible to decide to snap a quick snapshot or go with a reduced being exposed to catch a circulation or activity in the entirety. You need to try this and find what sort of pace suits specific situations. It is a case of personal type as opposed to a standard standard to adhere to. https://www.pieces-center.fr/images/pieces-centerfr/34999-adidas-bleu-superstar.jpg To review, we now have provided you with a number of methods that you can look after you terribly agonizing hemorrhoids. It is actually effecting your day-to-day life so you need some advice. With a little luck, you could find out something and are able to apply it to your great advantage.Stuff You Should Know About Using Better Photographs https://www.travail-internet.fr/images/NIKESBFLYpics/8815-nike-flyknit-racer-white.jpg

Genolwhing Genolwhing: un vendre viagra liege buy viagra cheap viagra online brand viagra discounters

Yuliawhing Yuliawhing: cialis dosaggio 20 mg http://canadiangcialisonline.com/ - calis cheap tadalafil online oder cialis le canada en ligne

Refolwhing Refolwhing: viagra dosage 150 mg http://buycheapviagralk.com/ - generic viagra viagra coupon generic cialis soft viagra

Valerywhing Valerywhing: to get house viagra how to viagra cheap viagra online que el viagra femenino

Kolyawhing Kolyawhing: american brand viagra sildenafil online generic viagra online viagra 25mg for sale

Kolyawhing Kolyawhing: wow)) viagra canada scam http://viagraagenericbuy.com/ - viagra online pharmacy online viagra viagra how many can i take

Hollwhing Hollwhing: only now usa generic viagra viagra professional viagra professional viagra pvp

Moiseswhing Moiseswhing: do i take cialis everyday http://genericcialsiuionline.com/ - cheap cialis cialis auftrag billige cialis

Moiseswhing Moiseswhing: cialis a vendre canada online cialis generic cialis prix de cialis eu

Goriwhing Goriwhing: top rated payday advance fast cash short term loans payday loans lynn ma

Kolyawhing Kolyawhing: cialis 5mg cijena buy cialis buy cheap cialis harga cialis tadalafil 50mg

Dedirwhing Dedirwhing: look there generic pack cialis cialis cheap cialis try it cialis 100mg india

Alexswhing Alexswhing: buy viagra in the uk. generic viagra online viagra viagra soft overnight

Los comentarios con faltas de ortografía y en MAYÚSCULAS NO SERÁN publicados