Tin makes a cracking sound when bent due to the twinning of the crystalline structure. A video in a series on each of the chemical elements features tin. It shares the properties and history of this metal as well as some common...

Indium's name comes from the color indigo, not the country of India. Young scientists observe two samples of indium while likely looking at a third without realizing it. Chemistry professors share the properties and history of this metal...

To prevent smelly feet, silver nano-particles find their antibacterial properties used in socks. Learn about the history and properties of silver in only a few minutes. Viewers of an installment in a chemistry series observe chemical...

Rhodium plays a key role in reducing air pollution from cars. A video from a series about chemical elements shares many interesting facts about rhodium. It goes beyond sharing the properties and history to also include applications of...

Ruthenium, an element that can be extracted from nuclear waste, finds new applications in solar energy. Chemistry professors share their knowledge about ruthenium's properties in a video about the element. They speakers also discuss...

Sometimes the measures of center don't give us enough information. The spread of the data can tell statisticians much more about the data set. A video lesson, part of a statistics video series, describes different measures of spread such...

They may be small, but probably still mighty! The characteristics of what astronomers have defined as stars have a minimum size requirement. The tiniest stars pack a lot into a small package—and still have all the properties of their...

Sugar and spice and everything nice ... and a little bit of star stuff! An enthusiastic presentation describes the elemental makeup of the human body and how these materials originated in a red giant star. As an episode of a larger solar...

The walking dead of the sky have been discovered! As a recent discovery, much is yet to be determined, but it is clear zombie stars do exist. An episode of a larger solar system playlist explains how a special supernova leaves behind...

Astronomers classify all elements that are not hydrogen or helium as metals. Their "heaviness" causes turbulence that may form metal stars. An installment of a comprehensive solar system series explains how scientists believe these stars...

The sun is missing a few branches from its family tree! A fact-filled lesson from a solar system playlist describes the characteristics of our sun that help identify its siblings. Stars that form from the same cloud typically have the...

Study the giants of our universe with a video lesson. A descriptive lesson from a solar system playlist compares hypergiant stars to other bodies in our galaxy. The lesson instructor explains the origin and the composition of these...

There's one in every group! It turns out there are rouge stars in our universe that don't follow the rules. An episode of an extensive solar system playlist describes the behavior of hypervelocity stars and how they interact in our...

The greater the technology, the better our understanding of our galaxy. An intriguing lesson from a solar system video series discusses the discoveries of the Gaia space observatory. With the release of the first 3D map of the Milky Way,...

Is it a bird, or a plane, or a blinking star? Scientists discovered in 1967 what they later determined to be a pulsing star. An episode of a larger solar system playlist discusses the chemistry behind the existence of this type of star.

There's something to look forward to in 2021 or 2022! Although the actual event occurred almost 2,000 years ago, the appearance of a new star will become evident from Earth in a few short years. The video instructor from the solar...

A video lesson attempts to explain the unexplainable. The video instructor focuses on three unique stars that have characteristics that astronomers have difficulty explaining. The installment of a solar system playlist includes a heavy,...

They should exist ... but do they really? Scientists use what they know to predict what should and should not exist. An installment of a larger solar system series looks at the scientific prediction of different stars that have yet to be...

Many phenomena in space are yet beyond scientific explanation. An episode of a video series on the solar system discusses two recent topics of interest: Uranus' magnetic field and hypervelocity stars. The presenter explains what we know...

The universe is littered with planets orbiting their suns. The video instructor outlines different methods scientists use to detect these exoplanets. As an installment of a larger solar system playlist, the video discusses current and...

The sun isn't just a ball of fire! An informative video lesson discusses the makeup of the sun and the variation of temperature. The episode of a larger solar system playlist focuses on the corona and theories as to why it has the most...

Imagine a universe before the formation of stars. An installment of a solar system playlist takes scholars through time to discover the beginning of stars in the universe. The presenter discusses the elements present at the time and how...

Have researchers found life on another planet? Maybe not, but possibly on one of Saturn's moons! A spacecraft has verified the presence of water on Enceladus as well as other life-supporting compounds. The episode of a solar system...

Are you ready to move to Mars? An engaging video lesson discusses the changes required for Mars to sustain human life. The first of which is to reinstate the magnetic field it lost over four billion years ago. The video is an episode in...