Search Results: "sirius a brightness"

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05:10 Popular
Glow On: Crash Course Kids #20.2

1,077 views / 3 likes - added 8 years ago

So, have you ever wondered why some stars are brighter than others? You might think it's because they're closer to us, but that's not the whole story? In this episode of Crash Course Kids, Sabrina chats about how stars glow and how astronomers judge their
12:01 Popular
Binary And Multiple Stars: Crash Course Astronomy #34

740 views / 0 likes - added 8 years ago

Double stars are stars that appear to be near each other in the sky, but if they’re gravitationally bound together we call them binary stars. Many stars are actually part of binary or multiple systems. If they are close enough together they can actually t
02:34
How to find Orion | Night Sky Guide | We The Curious

481 views / 0 likes - added 2 years ago

Where is Orion in the night sky? Ross Exton of the Live Science Team shows you how to find the constellation, along with Betelgeuse, Sirius, the Orion Nebula, and much more!This video was presented, produced and edited by: Ross Exton, Live Science Video P
06:35 Popular
Seeing Stars: Crash Course Kids

799 views / 0 likes - added 8 years ago

***Corrected with Images of Stars/planets*** So you know what a star is, right? Well, if you don't, you should. We've talked about that big one in the sky a few times: The Sun! But there are a lot of bright dots in the night sky and not all of them are st
04:10 Popular
The Hidden Meanings Of Yin And Yang - John Bellaimey

1,043 views / 3 likes - added 8 years ago

View full lesson here: http://ed.ted.com/lessons/the-hidden-meanings-of-yin-and-yang-john-bellaimey The ubiquitous yin-yang symbol holds its roots in Taoism/Daoism, a Chinese religion and philosophy. The yin, the dark swirl, is associated with shadows, fe
01:51
How light pollution affects stars in the night sky

549 views / 1 likes - added 6 years ago

At night, artificial light can block our view of the stars. Night light pollution levels determine how well stars can be seen, and are based on a scientific scale that measures the brightness of the night sky. Photographer Sriram Murali filmed timelapse v
04:27
NASA’s New Planet Hunter: TESS

517 views / 0 likes - added 6 years ago

NASA’s Transiting Exoplanet Survey Satellite (TESS) will find undiscovered worlds around bright nearby stars, providing targets where future studies will assess their capacity to harbor life. TESS is a NASA Astrophysics Explorer mission, led and operated
02:48 Popular
Stars 101 | National Geographic

1,082 views / 0 likes - added 5 years ago

Countless stars dot the night sky. Learn how these celestial objects form, how they are classified by brightness and temperature, and what happens when they die. ➡ Subscribe: http://bit.ly/NatGeoSubscribe #NationalGeographic #Stars #Educational About Nati
04:19
A New Theory Reveals Why Tabbys Star Looks So Bizarre

371 views / 0 likes - added 4 years ago

Researchers might be one step closer to figuring out the mysterious behavior behind Tabby's star's dimming. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylist Visit our shop at http://shop.seeker.comSome
03:31
Making Glowing Plasma in a Microwave

638 views / 0 likes - added 6 years ago

SUBSCRIBE!: http://bit.ly/1G97GmA SHARE THIS VIDEO: https://youtu.be/pVs8HwpPCpA Science Team! We made the fourth state of matter (nbd) with a microwave and some incense I got a home good store. I will admit, this one freaked me out a bit. The sounds and
11:10
White Dwarfs & Planetary Nebulae: Crash Course Astronomy #30

519 views / 0 likes - added 8 years ago

Today Phil follows up last week’s look at the death of low mass stars with what comes next: a white dwarf. White dwarfs are incredibly hot and dense objects roughly the size of Earth. They also can form planetary nebulae: huge, intricately detailed object
Great Conjunction 2020 LIVE: Watch Jupiter and Saturn shine as a 'Christmas Star'

403 views / 0 likes - added 3 years ago

During a Great Conjunction, Jupiter and Saturn will light up tonight's sky forming the 'Christmas Star'. The last closest Great Conjunction we could see occurred in 1226, so don't miss this unique celestial event. Subscribe for LIVE EVENTS ALERT - http://
03:05
What Can Frogs See That We Can't?

246 views / 1 likes - added 3 years ago

Check out the original double slit experiment: http://www.youtube.com/watch?v=Iuv6hY6zsd0 - oh, and for the sun to be seen as single photons, you would have to be ~1000 light years away, so well past Pluto. For clarification on this video, please see: htt
04:37
What Are The Brightest And Darkest Things In Space?

616 views / 0 likes - added 8 years ago

Space is filled with bright supernovae and dark black holes but how do we figure out what the brightest thing in space is? Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG Did We Just Find the Ninth Planet?►►►►http://bit.ly/1RHktGr Read
09:50
New York 1940s in color, Central Park [60fps,Remastered] w/added sound

179 views / 0 likes - added 1 year ago

Nice leisurely ride through Central Park here, shot from the back, at first from the direct back, then the left side, and then the right. There are some recognizable sculpture and of course, the lake. Fun to people watch, especially the people on the bike
01:31
The ‘alien megastructure’ star is acting weird again

611 views / 1 likes - added 7 years ago

Tabby's Star — officially known as KIC 8462852 — is acting weird, again. Recent reports indicate it has started to dim in brightness. That's what Tabby's star does — it dims. Astronomers were ready for the event — they have pointed telescopes from around
03:21
The Colors of Stars

191 views / 0 likes - added 2 years ago

Sam the Bat noticed that some stars are different colors, so Mister Brown teaches him about what colors stars can be, and what all the colors mean!Hosted by: Anthony Brown ----------Love SciShow Kids and want to help support it? Become a Patron on Patreon
02:03
Scientists think they've finally solved the mystery of the 'alien megastructure' star

685 views / 0 likes - added 6 years ago

The mystery of the "alien megastructure" star may finally be settled. In 2015, a rumor spread about the star KIC 8462852. It was proposed that the star might harbor an alien race. The rumor stemmed from the star's unusually unstable brightness. One explan
12:57 Popular
Neutron Stars: Crash Course Astronomy #32

787 views / 1 likes - added 8 years ago

In the aftermath of a 8 – 20 solar mass star’s demise we find a weird little object known as a neutron star. Neutrons stars are incredibly dense, spin rapidly, and have very strong magnetic fields. Some of them we see as pulsars, flashing in brightness as
05:59
Visualizing Ultrasound with Schlieren Optics Part III

252 views / 0 likes - added 3 years ago

Part 3 of 3. We combine the stroboscopic effect with the use of color filters in our schlieren optics setup to visualize the changes in air pressure that occur in a standing wave created by an ultrasonic transducer (driven at 28 kHz) and a reflecting glas
11:21
Distances: Crash Course Astronomy #25

652 views / 2 likes - added 8 years ago

How do astronomers make sense out of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth, and from that the distance to and th
05:58
Betelgeuse Is Destined to Explode as a SupernovaBut When?

268 views / 0 likes - added 3 years ago

Long considered one of the brightest stars in the night sky, Betelgeuse has begun to dramatically fade then brighten again for reasons we cant quite pin down. And its caused some people to wonder if it's about to explode. Catch up on Constellations! https
30:25 Popular
NASA | Thermonuclear Art – The Sun In Ultra-HD (4K)

893 views / 0 likes - added 8 years ago

It’s always shining, always ablaze with light and energy. In the ubiquity of solar output, Earth swims in an endless tide of particles. Every time half of the Earth faces the Sun, we experience the brightness of daytime, the Sun’s energy and light driving
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03:46
NASA | Looking For The Shadows Of New Worlds

625 views / 0 likes - added 8 years ago

Astronomers have used many different methods to discover planets beyond the solar system, but the most successful by far is transit photometry, which measures changes in a star's brightness caused by a mini-eclipse. When a planet crosses in front of its s
10:41
Stars: Crash Course Astronomy #26

649 views / 0 likes - added 8 years ago

Today Phil’s explaining the stars and how they can be categorized using their spectra. Together with their distance, this provides a wealth of information about them including their luminosity, size, and temperature. The HR diagram plots stars’ luminosity
01:18
Incredible Shade Illusion!

668 views / 0 likes - added 8 years ago

download this song on iTunes and Amazon http://itunes.apple.com/us/album/soul-switch-single/id426471027 http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=brusspup&x=0&y=0 Song name: Soul Switch Girl in the video: http://www.yout
10:09
The Amazing Oil Drop Light Meter

370 views / 0 likes - added 4 years ago

Checkout Brilliant here: https://brilliant.org/theactionlab/ In this video I show you the world's simplest light meter made form a drop of oil on a piece of paper. I show you how you can use this as a tool to determine the relative brightness or luminosit
01:18
Incredible Shade Illusion!

147 views / 0 likes - added 2 years ago

download this song on iTunes and Amazon http://itunes.apple.com/us/album/soul-switch-single/id426471027 http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=brusspup&x=0&y=0 Song name: Soul Switch Girl in the video: htt
03:52
Could a Dyson Sphere Harness the Full Power of the Sun?

458 views / 0 likes - added 5 years ago

Space colonization and traveling through deep space require lots of energy. Could Dyson Spheres offer humanity a nearly unlimited power source? Watch More Space Crafts! | https://bit.ly/2GqH0aO Read More: The Kardashev Scale Type 0: Why Earth is a Level Z
03:05 Popular
Are Man-Made Diamonds Really Diamonds?

1,170 views / 1 likes - added 7 years ago

Natural diamonds take a long time to form and can be dangerous to harvest, but how hard is it to make some in a lab? 7 Surprising Uses For Diamonds - https://youtu.be/FBzv8pQYcdA Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Ho
03:45
First Automatic Car 1948 in USA - Oldsmobile TV Commercial in Color

264 views / 0 likes - added 1 year ago

First Automatic Car 1948 in USA - Oldsmobile TV Commercial in Color 1948 Oldsmobile The first automobile model to use an automatic transmission was the 1948 Oldsmobile. The General Motors engineer, Earl Thompson, developed and advertised the Hyrda-Matic a
01:01
‘Winking’ Star May Be Devouring Wrecked Planets

484 views / 0 likes - added 6 years ago

Astronomers studying the star RZ Piscium have found evidence suggesting its strange, unpredictable dimming episodes may be caused by vast orbiting clouds of gas and dust, the remains of one or more destroyed planets. Young stars are often prodigious X-ray
03:57
This Could Be the End of Urban Astronomy (360 Video)

503 views / 0 likes - added 6 years ago

City lights are blinding our view of space, and its forcing urban astronomers to rethink the way they make observations. To make matters worse, a change in the type of lights being used could be the end of some observatories. Plunging Down an Ice Track at
05:11
What would it Look like with all the planets between the earth and the moon?

557 views / 1 likes - added 5 years ago

I would love to redo this in 360 3d VR. I need hardware and software: If you wish to help me out, support me on Patreon: https://www.patreon.com/yetidynamics What did I just watch? All the planets in the solar system will fit between the earth and the moo
02:44
Scientists Create First-Ever 3-D Model of a Melting Snowflake

611 views / 0 likes - added 6 years ago

This visualization is based on the first three-dimensional numerical model of melting snowflakes in the atmosphere, developed by scientist Jussi Leinonen of NASA's Jet Propulsion Laboratory in Pasadena, California. A better understanding of how snow melts
06:51
The Rare Celestial Phenomena That Can Only Be Seen Before Nightfall

211 views / 0 likes - added 3 years ago

Most people think of astronomy as a nighttime activity, but if you hate staying up late, youre in luck! As it turns out, theres a whole lot of fascinating celestial objects and phenomena that can only be observed in the bright light of day. Subscribe to S
06:28
How NASA Built the Fastest Spacecraft Ever

534 views / 0 likes - added 5 years ago

Engineers and designers working on the Parker Solar Probe tackled challenges such as size, weight, and extreme heat. Their design combined unique materials and underwent rigorous testing to transform the Probe into a record-breaking spacecraft. This Is No
04:34
Why Your Perception Of Time Can Change

531 views / 0 likes - added 8 years ago

People often say that time flies when you’re having fun, but does it really? What’s the science behind our perception of time? We’re sad to say this is Julia’s last episode. Thanks for helping make DNews awesome for the last year! Julia’s Twitter (@Julia_
10:12
Scientists Just Discovered 300,000 New Hidden Galaxies

441 views / 0 likes - added 4 years ago

Have you ever gazed out at the night sky and been fascinated by a bright band of stars? Thats the Milky Way - the galaxy where our sun hangs out. And the sun is not the only star in the Milky Way, and the Milky Way is not the only galaxy in the universe.
05:50
What The Color Of A Star Reveals About Its Composition

245 views / 0 likes - added 3 years ago

People have noticed this range of colors in the stars throughout history and its actually a pretty good indicator of a stars temperature, chemical composition and life stage. In this episode, we explore why stars sometimes change color and how to spot an
08:04 Popular
How Different Animals See the World!

827 views / 0 likes - added 3 years ago

In this video, we'll show you how animals see the world. Animals such as Dogs, Cats, Sharks, Snakes, Horses, Lizards, Fish, etc. These animal visions are based on Scientific Studies.How animals see the world is much different than you might think. For exa
04:09
This Is the Largest Map of Our Universe Ever Created

270 views / 0 likes - added 3 years ago

Scientists have mapped the largest amount of the night sky ever and you can explore it on the internet. The giant 2D map is a prerequisite for a 3D mapping project using the Dark Energy Spectroscopic Instrument, or DESI. Check out the map here: legacysurv
05:29
What is a Nova?

540 views / 1 likes - added 7 years ago

We’ve talked about supernovae plenty of times, but what about just regular, plain old novae? What are they, and how are they different from the star destroying explosions we know and love? Support us at: http://www.patreon.com/universetoday More stories a
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How to find a planet you can't see

158 views / 0 likes - added 2 years ago

Tiny wobbles and faint twinkles that have led astronomers to nearly 5,000 new worlds.Subscribe and turn on notifications so you don't miss any videos: http://goo.gl/0bsAjO For a tour of some of the odd exoplanets scientists have found, watch part one, her
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TELEVISION: HOW IT WORKS 1952 CORONET INSTRUCTIONAL FILM CATHODE RAY TUBE ORTHICON XD39134

239 views / 0 likes - added 2 years ago

Want to support this channel and help us preserve old films? Visit https://www.patreon.com/PeriscopeFilm Visit our website www.PeriscopeFilm.com This black-and-white educational film from 1952, “Television: How it Works” was created with educa

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