Fotbal s dalekohledem na očích

Fotbal s dalekohledem na očích Video Clips. Duration : 2.28 Mins.

Japonci se o5 předvedli.

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A Look at the Milky Way's Future

A Look at the Milky Way's Future Video Clips. Duration : 3.50 Mins.

From NASA, here's a vivid look at the future of our Milky Way in an ultra high-end computer simulation of spiral galaxies colliding. Collisions and mergers are central to galaxy evolution, from the earliest dwarf galaxies that formed to the familiar galaxies we see today. These collisions in action will be targets for the James Webb Telescope. Astronomers hope to understand how the shape, structure and chemical content of galaxies change over the sweep of cosmic history.

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Guidelines For Amateur Telescope making

Amateur telescope making is a spellbinding hobby.Telescopes are usually designed to perform particular kinds of work. Some are meant to be used chiefly for photography. In general, for visual work, low-ratio telescopes with their wide fields are beneficial for comet seeking, changeable star work, and the like. The higher ratios are used in planetary study, duplicate star observations, and in other fields where high powers and fine definition are required.

Some of these instruments are portable, and others must be mounted on a solid pier. The amateur, however, usually will have formulated no particular plan of observation, except a desire to observe the heavens, and to see with his own eyes some of its wonders.

Telescope

From the palpate gained by amateur telescope makers, it has been found that the most practical and favorite instrument for amateur use is the 6-inch f/8 Newtonian reflector. Its concave mirror is 6" in diameter and its focal length 48". The delicate task of parabolizing the mirror, while not easy, is not beyond the ability of a just worker. The 4-foot focal length makes for comfortable observing, and with a low-power eyepiece, the field of view is a trifle over one degree in diameter - more than twice that of the full moon.

The magnifications that may be employed permit of a modest size of mounting, which can be made portable. Such a telescope should impart stars of magnitude 12.8, as compared with the 6th-magnitude limit of the unaided eye, and the 9th-magnitude limit of the median small binocular.

Theoretically, the mirror is capable of resolving duplicate stars having a separation of % of a second of arc, but as magnifications exceeding about 30 per inch of cleft can seldom be used, it may not be incredible to perform up to this limit. This telescope will show the divisions in Saturn's rings; outside markings on the moon minute more than a mile over should also be visible.

The purchase price of such an instrument of pro make is necessarily high, and many an amateur feels compelled to do without it. But if he is possessed of some ingenuity and craftsmanship, and is willing to devote a few hours a week to the task, he can in a relatively short time build the telescope in its entirety, for a small fraction of that price.

Of course, many engaged in amateur telescope making feel that their mirrors are inferior to the professionals', but this is not necessarily true. It has been frequently demonstrated that mirrors of pro make will seldom stand up to a test, because it is impossible for the pro optician to spend adequate time on the mirror without losing money, whereas the amateur can, if he will, devote all the time and care considerable to produce a mirror of admirable figure.

Upkeep is minute for any telescope. The reflective aluminum coating of the mirrors of a reflector is subject to deterioration from dust and the elements admitted by the open tube, but given the same safety when not in use that is accorded a refractor, at least two years of aid should be realized before the aluminizing job need be repeated.

For those complex in amateur telescope making, the task is time spellbinding but very rewarding. Good luck!

Guidelines For Amateur Telescope making

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CELESTRON Powerseeker 50 Refractor Telescope Review

CELESTRON Powerseeker 50 Refractor Telescope Feature

• Optical Design - Refractor
• Aperture - 50mm
• Focal Length - 600mm
• F-Number - 12
• Finderscope - 5x24

CELESTRON Powerseeker 50 Refractor Telescope Overview

The Celestron® PowerSeeker 50 telescope is a great way to open up the wonders of the universe to the aspiring astronomer. It's portable yet powerful with ample optical performance to excite any newcomer to the world of amateur astronomy.

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CraterFace: The Moon Show! 720p HD timelapse footage compilation

CraterFace: The Moon Show! 720p HD timelapse footage compilation Tube. Duration : 8.30 Mins.

Earth's familiar satellite never had so many different looks! Shot from Santa Clarita, California from 2007 to 2011, this compilation showcases some interesting footage and night/evening scenes shot through a number of different cameras, lenses and even a telescope for a wide array of views. Included are some unusual cloud silhouettes, a variety of moon phases, and even some moon rings (moonbows) caused by refraction of the moon's light through tiny ice crystals in thin high-altitude cirrus cloud layers. Enjoy the show! Equipment used: Canon 5DMk2, 5S-is, SX10-is, HF100, JVC DVM-60, Celestron 80 EQ Original music "Bio" (dream version) written and performed by Technician (yours truly) from the "RaNdOm" CD, available on iTunes: itunes.apple.com and the Technician website: technician.jcmdi.com Generic description: This full-length, medium-res YouTube upload contains many stock footage clips from the JCMDI stock footage library of 1080p HD and SD time lapse, slow motion, clouds, sky, stars, jet trails, moon, hummingbirds, and nature stock footage available at JCMDI.COM. This iscopyrighted material, however, you may download this footage directly from YouTube and use it free of charge in your own non-profit/non-commercial YouTube videos. The full free usage policy can be found here (please read before using JCMDI material): jcmdi.com Soundtracks by Technician, available on iTunes: itunes.apple.com Thanks so much for watching and reading! =)

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Celestron 21035 70mm Travel Scope Review

Celestron 21035 70mm Travel Scope Feature

• All coated glass optical elements for clear crisp images
• Smooth functioning altazimuth mount with easy pointing to located objects
• Preassembled aluminum full size photographic tripod

Celestron 21035 70mm Travel Scope Overview

Travel Scope 70 was designed with traveling in mind. Highest quality materials used to ensure stability and durability. Minimal maintenance

Celestron 21035 70mm Travel Scope Specifications

The Celestron 21035 Travel Scope 70 is a compact 70mm refractor telescope optimized for portability and convenience. The telescope, the tripod, and all the accessories fit conveniently into a padded backpack style soft carrying case. The complete accessory package includes a 45 degree correct image prism, a 20mm eyepiece for 20X magnification, and a 10mm eyepiece for 40X. The fully illustrated instruction manual is supplemented by a copy of "The Sky X" astronomy software that turns your PC into a virtual planetarium.

With a focal length of 400mm and a focal ratio of f/5.7, the Travel Scope 70 compares surprisingly well with popular f/5 "Short Tube 80" refractors but at a much lower cost. The Travel Scope 70 uses a number of plastic components to keep the cost and weight down, including a plastic focuser and plastic lens shade, but the all glass lenses deliver beautiful views of backyard birds during the daytime and lovely views of the Moon and stars at night.

The Travel Scope 70 offers daytime views that compare with more expensive spotting scopes. The 20mm eyepiece gives 20X magnification and a 2.5 degree field of view, with plenty of crisp detail when I’m looking at backyard birds. The travel Scope 70 is also quick and easy to set up at night. The deep orange glow of the recent Lunar Eclipse was simply gorgeous, and I was even able to take some pictures using the Travel Scope 70 and a PowerShot camera. When I look at Jupiter using the 10mm eyepiece (40X magnification) I can easily see four moons near the planet. And rich field views of the Milky Way are often at their best in a small scope with a wide field of view.

The tripod included with the Travel Scope 70 is described as a “full size photo tripod”, but I like it best as a table-top tripod with the legs kept short. The tripod is designed to be light and compact, but that means the legs are thin and wobbly when fully extended. --Jeff Phillips

Pros:

• Light, portable, and affordable
• Excellent wide field views
• Padded backpack style case
• High and low power eyepieces
• The Sky X software included

Cons:

• Light weight tripod
• Plastic finder and focuser

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NASA Telescope Confirms Alien Planet Much Like Earth

NASA Telescope Confirms Alien Planet Much Like Earth Tube. Duration : 4.28 Mins.

NASA's planet-hunting Kepler spacecraft has confirmed the discovery of its first alien world in its host star's habitable zone — that just-right range of distances that could allow liquid water to exist — and found more than 1000 new explanet candidates, researchers announced today (Dec. 5). It is located about 600 light-years away, orbiting a sun-like star. Which means in the space shuttle it would take 22 million years to reach!! Kepler-22b's radius is 2.4 times that of Earth, and the two planets have roughly similar temperatures. If the greenhouse effect operates there similarly to how it does on Earth, the average surface temperature on Kepler-22b would be 72 degrees Fahrenheit (22 degrees Celsius). The new finds bring the Kepler space telescope's total haul to 2326 potential planets in its first 16 months of operation.These discoveries, if confirmed, would quadruple the current tally of worlds known to exist beyond our solar system, which recently topped 700. The potentially habitable alien world, a first for Kepler, orbits a star very much like our own sun. The discovery brings scientists one step closer to finding a planet like our own — one which could conceivably harbor life, scientists said. like us on facebook www.facebook.com

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Einstein's Greatest Blunder

Einstein's Greatest Blunder Video Clips. Duration : 3.87 Mins.

Excerpt from "Mysteries of a Dark Universe." Albert Einstein sought to explain why the gravity of all the stars and gas out there didnt simply cause the universe to collapse into a heap. Following the discovery of the expanding universe, he admitted to the "greatest blunder" of his career.

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Best Telescope to Get Into Astronomy

If you want to get into astronomy, there is only one way, and the best way is to buy a telescope. The best telescope will allow you to get the most out of astronomy. As you read this article, you will soon witness what the best telescope is.

In this article, you will soon discover:

Telescope

* What Is The Best Telescope?
* choosing in the middle of Reflector and Refractor Telescopes
* Getting Into Astronomy With Computerized Telescopes
* How To Find Telescopes For Sale?

* What Is The Best Telescope?

The best telescope can mean distinct things for distinct people. The best telescope for some people could mean the most high-priced model. The truth though is that the best telescope is one which allows you to get years of enjoyment out of astronomy.

This then comes down to several factors, which we will be finding at supplementary into this article. For example, is it for a child, is it for a teen or an adult. All these factors need to be looked at to witness which the best selection is.

* choosing in the middle of Reflector and Refractor Telescopes

Refractor telescopes are often the ones that are opinion of as telescopes. They have a long tube, and like binoculars which work with similar principles, you look from the back and the light enters from the front.

Refractor telescopes are great because they are very low maintenance. This is the best route for buying a telescope for a child or a teen. The ease of use makes it a very great way to get into astronomy. With children, it is essential to help them use the telescope, as even the small versions may still be bulky.

Refractors are great when it comes down to small sizes, however for larger sizes, the refractors cost can come to be immense, in fact in the thousands! This is not essential as there is other type, and that type is the reflectors, which use a mirror.

* Getting Into Astronomy With Computerized Telescopes

Another selection which is becoming very beloved is the computerized telescopes. Computerized telescopes are great for many reasons. For example, computerized telescopes allow you to enter the code, and it zooms to the exact point, allowing you to view the object.

This saves a lot of time, inspecting how you would need to do it manually. This is self-acting navigation of the universe, and is the many way to get into astronomy.

* How To Find Telescopes For Sale?

Finding a telescope for sale can be found in many ways. One way is straight through telescope stores; however there are not that many shop around. other selection is to look online, where there are many shop dotted nearby the world, who will deliver to your home.

Best Telescope to Get Into Astronomy

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Celestron 127EQ PowerSeeker Telescope Review

Celestron 127EQ PowerSeeker Telescope Feature

• 3x Barlow Lens
• German Equatorial Mount
• 127mm Aperture
• 1000mm Focal Length
• Comes with aluminum tripod and accessory tray

Celestron 127EQ PowerSeeker Telescope Overview

CES1071 Features: -Telescope. -PowerSeeker collection. -Color: Black. -Material: Aluminum. -127 mm (5'') Newtonian reflector. -3x Barlow lens triples the magnifying power of each eyepiece. -Quick and easy no-tool setup. -Slow motion controls for smooth tracking. -Erect image optics - ideal for terrestrial and astronomical use. -Fully coated glass optical components with high transmission coatings. -Enhanced image brightness and clarity. -Accessory tray for convenient storage of accessories. -''The Sky'' level 1 planetarium software with 10,000 object database. -Dimensions: 11'' H x 17'' W x 33'' D.

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2.4-Meter Telescope Aerial Shots

2.4-Meter Telescope Aerial Shots Tube. Duration : 0.45 Mins.

Aerial shots of the Magdalena Ridge Observatory 2.4-Meter Telescope from 2006

Tags: observatory, telescope, magdalena ridge, Magdalena, Ridge, Obs

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Nas - Star Wars

Nas - Star Wars Video Clips. Duration : 4.13 Mins.

Yeah, yeah, yo, yeah, yeah For niggaz up in they mom's crib listenin To this unadulterated Nas shit wishin it was them Instead of, me on this track on this beach with palm trees Drinks with umbrellas straws telling it raw Jungle of concrete killers and snakes I was amongst that Bundles of crack through this funnel that's black I want you to vision through my telescope see the hell I wrote It's Reynolds when I Wrap it like a envelope package And they was into dope back then Numbers, pimpin and robbin, well they still robbin and pimpin But it's small change compared to hip hoppin And did I mention millions because of lip poppin Trips expensive gift shoppin whip drivin Benzes, Jeeps, see, them and they bitch got one It's shockin - you thinkin "naw it's just rhymin" But all this time it's like organized crimin For instance, there was a time when there was a line Between streets and business, but now peep how it's mixed in The beef is now sickenin, everybody got paper Words of power, because of it the cops hate ya The government watchin all of those who thuggin it They wanna lock us up cause they kids are lovin it Not knowin that most rappers are straight ass And shots ring out, whenever we clash it's Star Wars We call it Star Wars What happens when the shots ring out? It's called Star Wars We call it Star Wars Caviar never, I rather the Cajun blacken Catfish no snails simple nigga to please Met a bad bitch dimples in her cheeks She remembers Busy B battles when it was peace ...

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Which telescope to buy?

Which telescope to buy? Video Clips. Duration : 7.70 Mins.

Below are some of the telescopes I've used in recent years, ranging from ~30 -3000 dollars. (shortened for YTs character limits) Price 76mm reflector dobsonian mounted (Celestron Firstscope) Weight ~ 1kg (a couple of pounds) Setup time ~0 East of Transport 1 Short focal length- wide angle field of view. Finder not really necessary. Ultra cheap, good views of Moon, Jupiter Venus, rings of Saturn, bright, wide separation double stars, and brighter deep sky objects such as M13. I was not particularly impressed with the optics on mine, but for 35 bucks, you cant complain too much! Price 0 90mm Maksutov-Cassegrain, dobsonian mount (Orion Apex) Weight ~ 1kg (a couple of pounds) Setup time ~0 East of Transport 1 Longer focal length means smaller field of view for comparable eye pieces. I was impressed with this scope on the planets. It vastly outperforms the Firstscope on optics. The scope comes off the dobsonian mount on a quick release and can be mounted as a spotter scope (the main reason I got it). The dobsonian mount here (one arm) is exactly the same as the mount for the Firstscope. These are sort of the poor mans refractor. Great views of Moon and all the bright planets. Picked out Titan (brightest moon of saturn) with ease. I got this telescope for two reasons, firstly for outreach, in that you can just grab it and point it in seconds, zero setup time. Secondly I can mount it piggyback on the CPC11 (see below) and use it as a spotting/ guide scope. The Maksutov ...

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How a Telescope Works - Part 2 - Light conferrence Power

The human eye has a diameter of seven millimetres; a 250 mm gap ,break reflecting telescope has 1275 times as much covering area (250 divided by 7, squared), which means that it collects 1275 times as much light. Celestial objects will therefore appear 1275 times as bright as with the unaided eye.

Astronomers portion the glow of stars in terms of a magnitude scale, which is essentially derived from an old classification of stellar glow as classes 1, 2, 3, and so on. The brightest stars are those of first magnitude and the faintest stars descriptive with the unaided eye are of magnitude six. There are a estimate of stars that are brighter than first magnitude; Sirius, the brightest star, shines at magnitude minus 1.4; the planet Venus, at its brightest, shines at nearby magnitude minus 4. The Sun, being the brightest object in the sky, shines at nearby magnitude minus 26.

Telescope

Now, the magnitude scale is a logarithmic one, which basically means that if the glow is divided by a estimate x, then 2.5 times log to the base 10 is added to the magnitude. For example, a 250 mm telescope makes celestial objects appear 1275 times brighter, which means it makes them 2.5 xlog1275 which equals 7.8 magnitudes brighter. This means that such an instrument can theoretically expand the observer's optic limit to magnitude 7.8 + 6.0 which equals magnitude 13.8.

In reality however, telescopes do a small best than this calculation suggests; with a 250 mm instrument in good looking conditions, it is possible to see objects down to a magnitude 14.5. This is due to the fact that a telescope can be focused perfectly, with all the light being captured going straight into the observer's eye. The actual formula to use is 7.5 + 5 x log10 times the telescope gap ,break in centimetres. So, for the 250 mm telescope, the limiting magnitude is 7.5 + 5log10 x 25, which equals 14.49.

However, reflecting telescopes have a central obstruction caused by the possessor of the secondary mirror. This covers nearby 16 per cent of the total covering area, which costs 0.2 magnitudes. So the limiting magnitude under exquisite looking conditions with a 250 mm reflector will be nearby 14.3.

Telescopes will brighten point-like objects, such as stars, but not extended objects, like the Moon, the planets, nebulae and galaxies. The fancy for this is because the telescope spreads the collected light over a wider area of the eye's retina. This means that the higher the power being used, the dimmer the image becomes. This is a phenomenon that always disappoints those who use a telescope on the night sky for the first time. They expect to see more, but struggle to do so.

However, the telescope is convention more light than the eye ever can, and an extended object like a galaxy at magnitude 10 will be descriptive through a telescope, but not as bright as hoped for. This is why astronomers use long exposure photography in order to capture and collect all the photons of light coming from extended celestial objects. It is the only way that we can truly appreciate the attractiveness and the colour of the night sky. scrutinize the overwhelming images obtained by the amateur astronomers from all nearby the world, and of course by the Hubble Space Telescope.

How a Telescope Works - Part 2 - Light conferrence Power

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Celestron 21061 AstroMaster 70 AZ Refractor Telescope

Celestron 21061 AstroMaster 70 AZ Refractor Telescope Review

Celestron 21061 AstroMaster 70 AZ Refractor Telescope Feature

• Quick and easy no-tool setup
• Permanently mounted StarPointer
• Erect image optics - Ideal for terrestrial and astronomical use
• Quick release dovetail attachment - no tool setup
• Pan handle Alt-Az control with clutch - for smooth and accurate pointing

Celestron 21061 AstroMaster 70 AZ Refractor Telescope Overview

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Who Invented the Telescope?

The invention of the telescope was a major develop in the science of Astronomy, but who invented it? Maybe you think you already know the answer.

Well, what would you say if I told you that you're probably wrong? After all, it was Galileo Galilei who invented it, right? You might be surprised by the talk to that question. Although Galileo Galilei was a great astronomer, he didn't institute the telescope.

Telescope

If not Galileo, then who?

A man named Hans Lipperhey invented the telescope. He was born in Wesel, Germany and made his home in Middleburg, part of the Zeeland province in the Netherlands. He was married there in 1594, and became a habitancy in 1602. He was a spectacle-maker by trade.

The Italians advanced new glass-making techniques which were introduced to the Netherlands in the 1590's. These new techniques helped to bring about new ideas and innovations in the glass-making society and habitancy started to experiment with dissimilar ways to incorporate lenses.

Where is the proof?

Many other habitancy claim to have invented the telescope, but Hans Lipperhey is the only person documented to have applied for a patent for the device.

Child's play

Legend has it that it wasn't Hans himself, but his children who undoubtedly invented the telescope while they were playing.

So now you know the story of the telescope and how it came to be.

Who Invented the Telescope?

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