Curated Video
The Importance of Honesty
In this video, Helen the hippo shares a story about the importance of honesty. When she accidentally eats fruits from a basket that belonged to her new friend Lisa, Helen must decide whether to tell the truth or not. Through her honesty,...
Curated Video
Laser
A laser is a type of optical amplifier that produces light within a very narrow frequency band, and with the peaks and troughs of their electromagnetic waves more or less in step. A Twig Science Glossary Film. Key scientific terms...
Curated Video
Fibre Optics
Light can be transported over huge distances via fibre optic cables, losing virtually no information. How is this possible? Physics - Waves - Learning Points. Fibre-optic cables carry information from our phones and computers as light. A...
Curated Video
Earthly Treasures: Precious Gemstones
Discover the specific conditions needed for the formation of emeralds, rubies and sapphires; and how there is now potential to 'grow' them in laboratories. Earth Science - Geology - Learning Points. Emeralds are made from beryllium....
Curated Video
The Elements: Neon
Learn about the noble gas, neon, and its uses. Chemistry - Periodic Table - Learning Points. Neon is a colourless gas. When electricity is passed through neon, it produces a bright orange-red light. Neon is a noble gas and is inert,...
Curated Video
How Do Lasers Work?
Concentrated light can be incredibly powerful and useful. Learn how laser beams are produced by controlling how atoms emit photons of light. Physics - Waves - Learning Points. Lasers are photons of the same frequency going in the same...
Curated Video
The Race for Absolute Zero: Laser Cooling
Lasers are usually associated with heat. But scientists have instead used them to reach the coldest temperature ever recorded. Could they reach absolute zero? Physics - Energy And Radioactivity - Learning Points. Absolute zero is...
Curated Video
Carbon: Buckminsterfullerene
Discovered in 1985, Buckminsterfullerene has some fascinating characteristics. What is it and how is it shaping the future of chemistry? Chemistry - Atoms And Bonding - Learning Points. In the 1980s, a new carbon allotraope was found -...
Curated Video
Stimulated emission
As distinct from spontaneous emission, stimulated emission is the process in which a photon is emitted from an atom or molecule when hit by another photon of the right energy. A Twig Science Glossary Film. Key scientific terms defined in...
Curated Video
Introduction to Laser Eye Surgery
Laser eye surgery is a medical procedure that involves the use of a laser to reshape the surface of the eye. The first laser eye surgery or laser sculpting was performed more than 20 years ago. Patients have this laser eye surgery to...
Curated Video
From Selfies to Statuettes: The Evolution of Portraiture in the Age of 3D Technology
Explore the fascinating transformation of portraiture from traditional methods to cutting-edge 3D technology. Journey with Mac Lesggy as he discovers how modern techniques capture and immortalize human likenesses in crystal blocks,...
Curated Video
Celestial Light Shows: Aurora and Rainbow Mysteries Unveiled
Dive into the mesmerizing world of auroras and rainbows with stunning visuals from around the globe. Learn how the collision of charged particles with Earth's atmosphere creates the vivid colors of the aurora borealis and australis, and...
Curated Video
CompTIA A+ Certification Core 1 (220-1101) - Laser Printers
Laser printers provide excellent print output on paper in both black and white and full color. Laser printers use a fairly complicated printing process that techs should understand. This episode details the processes and components for...
Curated Video
Introduction to Energy
Dr. Forrester explains how most of our energy is generated by the sun in one way or another.
Curated Video
Revolutionizing Transportation: The Future of Driverless Cars
This video explores the revolutionary development of driverless vehicles, showcasing how they are already being implemented in places like London's Heathrow Airport and on open roads. The technology behind these autonomous cars includes...
Curated Video
Advancements in Laser-Induced Breakdown Spectroscopy: Remote Analysis and Applications
Scientists at Los Alamos National Laboratory have developed a groundbreaking method of materials analysis using laser-induced breakdown spectroscopy (LIBS). By firing laser pulses at a material and analyzing the emitted light, the system...
Curated Video
Uncovering Ancient Secrets: Laser Scanning Reveals New Carvings at Stonehenge
This video discusses the recent discovery of previously unknown carvings on the stones of Stonehenge, using laser scanning technology. The archaeologists are now seeking permission to scan the entire site in hopes of uncovering more...
Curated Video
Light Therapy: A Promising Treatment for Psoriasis and More
Light therapy, using a laser, is a new and effective approach for treating psoriasis, a condition that causes scaly eruptions on the skin. Unlike traditional steroid treatments, light therapy has proven to be superior and has fewer side...
Curated Video
Protect Your Vision: Early Detection and Prevention of Eye Diseases
This video emphasizes the importance of early detection and regular eye tests to prevent vision loss due to conditions like macular degeneration and glaucoma. It highlights the significance of not ignoring changes in vision and seeking...
Higgsino Physics
The simple physics of a laser
The physics of a laser - how it works. How the atom interacts with light. I’ll use this knowledge to simulate a working laser. We will learn how LASERs relies on Stimulated absorption, Spontaneous emission, and most importantly:...
Curated Video
Technology as a Proxy
SETI (Search for Extraterrestrial Intelligence) astronomer Jill Tarter describes how we use technology as a proxy for potential alien intelligence, and how our search involves looking for signals that nature doesn't make on her own.
Zach Star
Could you avoid being hit by a laser if you were in a room of mirrors?
Could you avoid being hit by a laser if you were in a room of mirrors?
The Backyard Scientist
200 Watt car mounted laser!
There were never any planes in danger and I can prove it with science. First of all, we never turned the beam on more than 4 amps (50 watts)because we were having cooling issues and couldn't really monitor it up on the car.. (we tried 6...