Professor Dave Explains
Pericyclic Reactions 2
Professor Dave explains the science and theory behind pericyclic reactions (Part Two)
Professor Dave Explains
Heterocycles Part 1: Furan, Thiophene, and Pyrrole
We've mentioned heterocycles before. They are cyclic molecules where one or more atoms in the ring are not carbon. Typically these involve oxygen, nitrogen, and sulfur. But there are so many different heterocycles. Different sizes, some...
Science360
Advanced Wireless Research Initiative - Webcast from 7/15/2016
NSF leads federal effort to boost advanced wireless research
The National Science Foundation announces it will invest more than $400 million over the next seven years to support fundamental wireless research and to develop platforms for...
Professor Dave Explains
The Haloform Reaction
Once again, we will be interested in learning about reactions that break carbon-carbon bonds, as this will allow us to perform necessary transformations on substrates. The haloform reaction is one such reaction, and it is commonly used...
Professor Dave Explains
Carbenes Part 2: Cyclopropanation, C-H Insertion, and the Bamford-Stevens Reaction
In the previous tutorial we learned about carbenes. So now that we understand their properties, we are ready to learn about what we can do with them. Three major uses of carbenes involve cyclopropanation, C-H insertion, and the...
Professor Dave Explains
Pericyclic Reactions 4
Professor Dave explains the science and theory behind pericyclic reactions (Part Four)
Science360
Inventing the Way Forward - Graduate Education for the STEM Workforce (2)
National Science Foundation
Division of Graduate Education Open House: Inventing the Way Forward: Graduate Education for the STEM Workforce
The first panel, The Big Picture: Challenges and Opportunities in Graduate Education, six...
Science360
Science of the Winter Olympics - Short Track Speed Skating
The U.S. speed skating team has two best hopes against a powerful South Korean team that took three- of-a-possible-four golds in Torino: Apolo Ohno and J.R. Celski--an 18-year-old World Champion in his first Olympics. Speed skating is...
Science360
Improving Outcomes by Reducing Red Tape for Financial Assistance
Office of Management and Budget (OMB) Guidance on Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards Please submit your questions to cofar@omb.eop.gov. For more information on this guidance...
Science360
BIO Distinguished Lecture Series – Michael Dietze
BIO Distinguished Lecture Series – Michael Dietze: "Solving the challenge of predicting nature: How close are we and how do we get there?" Is nature predictable? If so, how can we better manage and conserve ecosystems? Near-term...
The Backyard Scientist
Pouring Molten Metals into Water. COOL! (Aluminum, Thermite, Lead + More!)
I've been pouring 7 different metals into a 24" tall aquarium over the weekend, and the results have been super cool! I poured metals with different melting points to see if they had any different effects when they came in contact with...
Professor Dave Explains
Beckmann Rearrangement
Have you ever had a ketone and wished you had an amide instead? Not to worry! The Beckmann rearrangement is the solution to your problems. Check out this nifty reaction where we get an oxime and then get an alkyl group to migrate. We can...
The Backyard Scientist
Pouring molten Aluminum into a Pumpkin (cooled with liquid nitrogen!!!)
The inside of a pumpkin has a pretty interesting geometry. I had the idea to cast the inside to see what it looks like, but the inside of the pumpkin is very fragile and the 1000 degree aluminum pretty much destroys it as soon as it...
Professor Dave Explains
Diazomethane Synthesis and Applications (Arndt-Eistert Homologation)
In learning about carbenes, we discovered the importance of diazomethane. So it will be a good idea to learn how to make this molecule, as well as some other things we can do with it, including something called the Arndt-Eistert...
The Backyard Scientist
Pouring Liquid Nitrogen in a Pool - (I set my pool on fire!!)
I pour Liquid Nitrogen, Diethyl Ether, and Dry Ice into my pool! Can liquid nitrogen put out a fire? what about dry ice? Diethyl ether is one of the most flammable solvents around!
Zach Star
A Breakdown of My Electrical Engineering College Labs
In this video I take you through many of the electrical engineering labs I did in college. Obviously these will differ from school to school, but should give you an idea for the types of labs you can expect as an electrical engineer. In...
The Backyard Scientist
Molten Aluminum vs Liquid Nitrogen (& Dry Ice!)
Pouring molten aluminum into liquid nitrogen and dry ice are my most requested videos, so today you finally get to see what happens!
Professor Dave Explains
Baeyer-Villiger Oxidation
We just learned how to make lactams out of cyclic ketones, is there a similar way that we can make lactones? There is! Try the Baeyer-Villiger oxidation. This is another one of those rearrangement type of reactions, only this time we are...
Science360
A battery inspired by vitamins
What happens when there isn't any wind to spin the blades of a wind turbine? Or there's no sun to charge those solar panels? National Science Foundation-funded researchers at Harvard University may have a solution. In episode 69, Jordan...
The Backyard Scientist
DIY "Liquid Nitrogen" Liquid Propane!
Hey guys, In this video I use liquid propane as an analogue to liquid nitrogen. Its easy, I just invert a propane cylinder and the propane comes out a a liquid. This liquid is very cold. about -40 degrees! I acts just like liquid...
Schooling Online
IB Physics Skills: Accuracy
The royal archery contest begins! Everyone expects Robin Hood to win since he is an accurate and reliable archer. But what do the terms accuracy and reliability mean? This lesson will take an in-depth look at accuracy and systematic...
Science360
What does an environmental engineer do? - Careers in Science and Engineering
What's it really like to be an engineer or a scientist? What do they really do all day? You're about to find out! Meet the next generation of engineers and scientists in these profiles of young professionals, who may just inspire you to...
Science360
Science of the Winter Olympics - Mathletes
It's been called "the Queen of Sciences"--mathematics. It might not be as obvious in Olympic sports as physics or materials-engineering, but math--from simple arithmetic to calculus--is part of every jump, every spin, every move the...
Curated Video
Chemistry Practical: Investigating the Effect of Concentration on Reaction Rate
This video discusses a required practical experiment in chemistry where the objective is to investigate how increasing the concentration of a reactant affects the rate of the reaction. The hypothesis is that increased concentration leads...