Instructional Video1:40
NASA

NASA | The Dual Personality of the 'Christmas Burst'

3rd - 11th
The Christmas burst, also known as GRB 101225A, was discovered in the constellation Andromeda by Swift's Burst Alert Telescope at 1:38 p.m. EST on Dec. 25, 2010. Two very different scenarios successfully reproduce features of...
Instructional Video0:25
NASA

NASA | Animation: NASA's Swift Satellite Spots Black Hole Devouring A Star

3rd - 11th
In late March 2011, NASA's Swift satellite alerted astronomers to intense and unusual high-energy flares from a new source in the constellation Draco. They soon realized that the source, which is now known as Swift J1644+57,...
Instructional Video2:39
Curated Video

Advanced Swift 2 Application Development (Video 16)

Higher Ed
The number of smartphone users is increasing every single day, and as more and more of them are looking for new and interesting ways to improve their lives through mobile applications, the need for a language that will deploy on...
Instructional Video1:02
NASA

NASA | Massive Black Hole Shreds Passing Star

3rd - 11th
This artist’s rendering illustrates new findings about a star shredded by a black hole. When a star wanders too close to a black hole, intense tidal forces rip the star apart. In these events, called “tidal disruptions,” some of...
Instructional Video2:23
NASA

A Day in the Life of a NASA Satellite Team

3rd - 11th
Launched on Nov. 20, 2004, NASA's Neil Gehrels Swift Observatory has been on the hunt to uncover the mystery of the universe’s most powerful explosions: gamma-ray bursts. These extreme events are some of the farthest objects...
Instructional Video2:02
NASA

NASA's Kepler, Swift Missions Harvest ‘Pumpkin’ Stars

3rd - 11th
Astronomers using observations from NASA's Kepler and Swift missions have discovered a group of rapidly spinning stars that produce X-rays at more than 100 times the peak levels ever seen from the sun. The...
Instructional Video2:15
NASA

NASA | GLASTcast | Episode 3: Swift and GLAST

3rd - 11th
NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France,...
Instructional Video3:28
Professor Dave Explains

William McKinley: Annex Like the Dickens (1897 - 1901)

9th - Higher Ed
William McKinley ushered in a new era for America, one of imperialism that would foreshadow things to come. He was also the third president to be assassinated. He manufactured a reason to go to war, he strengthened the government, hey...
Instructional Video2:05
NASA

NASA | Neutron Stars Rip Each Other Apart to Form Black Hole

3rd - 11th
This supercomputer simulation shows one of the most violent events in the universe: a pair of neutron stars colliding, merging and forming a black hole. A neutron star is the compressed core left behind when a star born with...
Instructional Video8:54
NASA

NASA | Swift: A Decade of Game-changing Astrophysics

3rd - 11th
Over the past decade, NASA's Swift Gamma-ray Burst Explorer has proven itself to be one of the most versatile astrophysics missions ever flown. It remains the only satellite capable of precisely locating gamma-ray bursts -- the...
Instructional Video2:21
NASA

NASA | GLASTcast | Special Edition: Launching a Spacecraft

3rd - 11th
NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in...
Instructional Video5:05
Curated Video

Application Development with Swift 2 (Video 14)

Higher Ed
Swift 2 is the latest iteration of Apple's native programming language for iOS devices. If you're an aspiring iOS application developer who is looking to build apps for the App Store, you'll need to use Swift. The language boasts...
Instructional Video2:58
Curated Video

Mastering Swift 2 Programming (Video 52)

Higher Ed
Swift 2 is a multi-paradigm programming language that has expressive features familiar to modern functional languages, and does not forget the object-oriented features of Objective-C. Things that took a block of code in...
Instructional Video4:44
Curated Video

Using Front-End Estimation to Solve Multi-Step Word Problems

K - 5th
In this video, the teacher explains how to solve multi-step word problems using front-end estimation. They demonstrate how to determine the two highest place values in a number and use them to estimate the answer.
Instructional Video4:11
Curated Video

Mastering Swift 2 Programming (Video 31)

Higher Ed
Swift 2 is a multi-paradigm programming language that has expressive features familiar to modern functional languages, and does not forget the object-oriented features of Objective-C. Things that took a block of code in...
Instructional Video0:53
NASA

NASA | Swift Captures Flyby of Asteroid 2005 YU55

3rd - 11th
Asteroid 2005 YU55 whisks through the field of view of Swift's Ultraviolet/Optical Telescope (UVOT) on Nov. 9, just hours after the space rock made its closest approach to Earth. The video plays on a background image from the Digital...
Instructional Video6:48
TLDR News

Is Biden Being Too Weak on Russia? Biden's Russia Policy Explained - TLDR News

12th - Higher Ed
With Russia poised for military action against Ukraine at any time, and NATO rushing to find a diplomatic solution, we take a look at America’s role in all this, and how President Biden is approaching the situation. So in this video, we...
Instructional Video5:42
Curated Video

Mastering Swift 2 Programming (Video 44)

Higher Ed
Swift 2 is a multi-paradigm programming language that has expressive features familiar to modern functional languages, and does not forget the object-oriented features of Objective-C. Things that took a block of code in...
Instructional Video1:50
NASA

NASA | A Flickering X-ray Candle

3rd - 11th
The Crab Nebula, created by a supernova seen nearly a thousand years ago, is one of the sky's most famous "star wrecks." For decades, most astronomers have regarded it as the steadiest beacon at X-ray energies, but data from orbiting...
Instructional Video4:47
Curated Video

Mastering Swift 2 Programming (Video 32)

Higher Ed
Swift 2 is a multi-paradigm programming language that has expressive features familiar to modern functional languages, and does not forget the object-oriented features of Objective-C. Things that took a block of code in...
Instructional Video2:16
NASA

NASA | X-ray Nova Reveals a New Black Hole in Our Galaxy

3rd - 11th
On Sept. 16, NASA's Swift satellite detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy. The outburst, produced by a rare X-ray nova, announced the presence of a previously...
Instructional Video2:29
NASA

NASA | X-ray Satellites Monitor the Clashing Winds of a Colossal Binary

3rd - 11th
O-type stars are among the most massive and hottest known, pounding their surroundings with intense ultraviolet light and powerful outflows called stellar winds. NASA's Swift and ESA's XMM-Newton X-ray observatories took part in a...
Instructional Video3:27
NASA

NASA | Colliding Neutron Stars Create Black Hole and Gamma-ray Burst

3rd - 11th
Armed with state-of-the-art supercomputer models, scientists have shown that colliding neutron stars can produce the energetic jet required for a gamma-ray burst. Earlier simulations demonstrated that mergers could make black holes....
Instructional Video5:17
Curated Video

The Korean War, the 1953 Armistice

Higher Ed
Brutal Korean War becomes stage for the USSR and USA to test their arms strength. In between Korean people lost many human lives which ended up at the same borders as before the war i.e. 38th Parallel.