Chemistry — Cooler Than Absolute Zero! Here’s a look at the remarkable properties of ten of the periodic table’s elements. The first on our list was hailed as the philosophers’ stone when it was discovered. 1. Phosphorus 125 Great Science Videos: From Astronomy to Physics & Psychology Astronomy & Space Travel A Brief, Wondrous Tour of Earth (From Outer Space) – Video – Recorded from August to October, 2011 at the International Space Station, this HD footage offers a brilliant tour of our planet and stunning views of the aurora borealis.A Universe from Nothing – Video – In 53 minutes, theoretical physicist Lawrence Krauss answers some big enchilada questions, including how the universe came from nothing.A Year of the Moon in 2.5 Minutes – Video – The Lunar Reconnaissance Orbiter has been orbiting the moon for over a year. The footage gets compressed into 2 slick minutes.A Day on Earth (as Seen From Space) – Video – Astronaut Don Pettit trained his camera on planet Earth, took a photo once every 15 seconds, and then created a brilliant time-lapse film.Atlantis’s Final Landing at Kennedy Space Center – Video – After more than 30 years, the space shuttle era comes to a close. Video runs 30 minutes. Physics
Beyond Angry Birds, Five Apps That Test Your Physics Skills By Tanner Higgin, Graphite Chances are, if you have a smartphone or tablet, you’ve played Angry Birds. While Candy Crush Saga might currently top the charts, Angry Birds is the best selling app of all time. From an educator’s perspective, what’s exciting about Angry Birds’ popularity versus something like Candy Crush is that getting good at Angry Birds means skillfully – and often unconsciously – using conceptual physics knowledge. It’s something video games have been doing for years, but Angry Birds brought it to a mass audience, sneaking a bit of science into many students’ digital diets.
General Chemistry Online Common Compound Library A searchable database of over 800 common compound names, formulas, structures, and properties. Companion Notes Hyperlinked notes and guides for first semester general chemistry. Construction Kits Flash-based kits for building chemical formulas, names, equations, and problem solutions. Articles Featured articles, books, and tutorials. Spectra of Gas Discharges Below are images of the spectra of the lines of each element which would be observed as emission lines in an electrical gas discharge. The images are screen shots of an applet - originally written by John Talbot - which reads in a file with wavelengths and intensities and makes a colourful representation of the spectrum. All data are taken from the NIST Atomic Spectra Databaseby the National Institute of Standards and Technology, Gaithersburg, MD., U.S.A. The line intensities are as given in these tables, to give an impression of the relative line strength. However, it must be emphasized that the spectra shown may not correspond to the discharges we see in the form of various street lamps, because the excitation conditions (electric voltage, temperature, density) may well be different ... The Applet with user control of all parameters is here.
Chemistry Techniques – Titration Click to enlarge Anyone who’s studied chemistry will be overly familiar with titrations. It’s an analytical technique that can be used to find the concentration of a solution (the amount of a solute dissolved in it). I put this graphic together primarily to remind my A level students of some of the key aspects of titrations, but as well as being a handy guide for them, it’s a useful introduction to the technique for non-chemists too! Students are usually introduced to titrations in the context of reactions between acids and alkalis. The Elements Revealed: An Interactive Periodic Table In the October 2011 issue of Scientific American, we celebrate the International Year of Chemistry. Learn more about its impact on our daily lives in our Special Report. UPDATED: 06/18/2013 In honor of the 2013 Lindau meeting, which focuses on chemistry, we have updated our interactive periodic table with links to Nature Chemistry's In Your Element essay series. Each essay tells the story of a particular element, often describing its discovery, history and eventual uses. Main Sources & More to Explore: The Poisoner’s Handbook: Murder and the Birth of Forensic Medicine in Jazz Age New York.
Science Xplained Science Xplained is a collection of video podcasts that tell the stories of the science behind everyday topics. Dr. Ainissa G. Teacher Resources Teacher Programs JLab Science Activities for Teachers (JSAT) - An afternoon science program for 5th, 6th and 8th grade teachers. [Program Dates: September 2016 - May 2017] Physical Science Investigation - Jefferson Lab (PSI: JLab) - A week long summer program for teachers! [Application Deadline: June 30th, 2016]