Active laser medium
The active laser medium (also called gain medium or lasing medium) is the source of optical gain within a laser. The gain results from the stimulated emission of electronic or molecular transitions t...
Active laser medium - Wikipedia
PragerU - There's nothing scientific about demonizing...
There's nothing scientific about demonizing carbon dioxide.
Scientists find a way to convert Carbon Dioxide from air into fuel
Researchers have discovered a process that takes Carbon Dioxide (CO2) from the air and converts it into methanol (CH3OH) with the help of a homogeneous catalyst.
Mini Carbon-Capturing Motors May Help Lower Carbon Dioxide Levels In The Oceans
To help address the growing problem of water pollution, a group of scientists have created tiny motors that can rapidly remove carbon dioxide from the water. Researchers have developed carbon-capturin...
The World’s Nitrogen Fixation, Explained
Yale University scientists may have cracked a part of the chemical code for one of the most basic, yet mysterious, processes in the natural world — nature’s ability to transform nitrogen from the air ...
This Giant Wind Wall Sucks Carbon Dioxide Out of the Air
Carbon Engineering has an ambitious plan to take carbon dioxide out of the atmosphere and turn it into fuel. The company is aiming the facility at areas where reforestation isn't an option, such as de...
How Mosquitoes Sniff Out ''Tasty'' Humans Before Biting
Whatever bug repellents, scents or candles you may try to avoid mosquito bites, you just cannot avoid them as mosquitoes have evolved a triple threat of visual, olfactory and thermal cues to bite us, ...
Fighting Climate Change – With Cement
Membrane-based technology developed at NTNU is one of four technologies that may be used in a full-scale CO2 capture project – in a cement factory. Gassnova, Norway’s state-funded effort to develop ca...
Cryotherapy As A Weight Loss Treatment
The latest weight loss trend requires a lot of blankets, immediately. 
Study, CO2 Continues To Increase Greenhouse Effect
Researchers say they’ve made the first direct observations affirming an increase in greenhouse effect at the Earth’s surface caused by carbon dioxide. The finding affirms in nature what has already be...
New Research Shows Past Evidence Supports Latest Climate Estimates
Predicting how the climate would turn out is integral in planning for the effects of climate change. By looking back, researchers find crucial clues that may help in today's climate research.
Nitrogen
Number 7 on the periodic table, Nitrogen is the most abundant element in Earth's atmosphere. More elements at http://www.periodicvideos.com/
Neon
Neon, an inert gas, is element number 10. All the elements at http://www.periodicvideos.com/
Supercritical carbon dioxide
Supercritical carbon dioxide is a fluid state of carbon dioxide where it is held at or above its critical temperature and critical pressure.Carbon dioxide usually behaves as a gas in air at standard t...
Supercritical carbon dioxide - Wikipedia
Sellmeier equation
The Sellmeier equation is an empirical relationship between refractive index and wavelength for a particular transparent medium. The equation is used to determine the dispersion of light in the mediu...
Sellmeier equation - Wikipedia
Nd:GdVO4
Nd:GdVO4 is one of the active laser medium for diode laser-pumped solid-state lasers. Several advantages over Nd:YAG crystals include a larger emission cross-section, a pump power threshold, a wider a...
(E)-Stilbene
(E)-Stilbene, is a diarylethene, i.e., a hydrocarbon consisting of a trans ethene double bond substituted with a phenyl group on both carbon atoms of the double bond. The name stilbene is derived fro...
(E)-Stilbene - Wikipedia
Blackdamp
Blackdamp (also known as stythe or choke damp) is an asphyxiant, reducing the available oxygen content of air to a level incapable of sustaining human or animal life. It is not a single gas but a mix...
Blackdamp - Wikipedia
Potassium cyanate
Potassium cyanate is an inorganic compound with the formula KOCN (sometimes denoted KCNO). It is a colourless solid. It is used to prepare many other compounds including useful herbicide. Worldwide ...
Potassium cyanate - Wikipedia
The World’s Nitrogen Fixation, Explained
Yale University scientists may have cracked a part of the chemical code for one of the most basic, yet mysterious, processes in the natural world — nature’s ability to transform nitrogen from the air ...
Scheelite
Scheelite is a calcium tungstate mineral with the chemical formula CaWO4. It is an important ore of tungsten. Well-formed crystals are sought by collectors and are occasionally fashioned into gemstone...
Scheelite - Wikipedia
Umbelliferone
Umbelliferone, also known as 7-hydroxycoumarin, hydrangine, skimmetine, and beta-umbelliferone, is a widespread natural product of the coumarin family.It absorbs ultraviolet light strongly at several ...
Umbelliferone - Wikipedia
Zinc selenide
Zinc selenide (ZnSe) is a light yellow solid compound. It is an intrinsic semiconductor with a band gap of about 2.70 eV at 25 °C (77 °F). ZnSe rarely occurs in nature. It is found in t...
Zinc selenide - Wikipedia
Liquid nitrogen
A demonstration of liquid nitrogen at the Freeside maker space in Atlanta, Georgia during the Online News Association conference in 2013Liquid nitrogen is nitrogen in a liquid state at an extremely ...
Liquid nitrogen - Wikipedia
Neodymium-doped yttrium orthovanadate
Neodymium-doped yttrium orthovanadate (Nd:YVO4) is a crystalline material formed by adding neodymium ions to yttrium orthovanadate. It is commonly used as an active laser medium for diode-pumped sol...
Neodymium-doped yttrium orthovanadate - Wikipedia
Fluorescein
Fluorescein (/flɔərˈɛsiɨn/ or /flɔərˈɛsin/) is a synthetic organic compound available as a dark orange/red powder slightly soluble in water and alcohol. It is widely used as a fluorescent tracer for m...
Fluorescein - Wikipedia
Tetracene
Tetracene, also called naphthacene, is a polycyclic aromatic hydrocarbon. It has the appearance of a pale orange powder. Tetracene is the four-ringed member of the series of acenes, the previous one b...
Tetracene - Wikipedia
Nitrogen cycle
The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms. This transformation can be carried out through both biological and physical processes. Important pr...
Nitrogen cycle - Wikipedia
Rhodamine B
Rhodamine B /ˈroʊdəmiːn/ is a chemical compound and a dye. It is often used as a tracer dye within water to determine the rate and direction of flow and transport. Rhodamine dyes fluoresce and can thu...
Rhodamine B - Wikipedia