Alcohol-based hand sanitizers are the ubiquitous little squeeze-bottle heroes of airports and hospitals, our allies during cold and flu season, and supposedly effective against a huge variety of disease-causing viruses and bacteria. But what's really in hand sanitizers? And is it true that they kill 99.99% of germs, as popular brands claim? Reactions breaks down the contents of your hand sanitizer in this new video: https://youtu.be/245jz3ZqZqM.
If you've ever tapped a screen to send a tweet, opted for a glass bottled soda because of taste, or drooled over art glass in a gallery, then your life has been changed for the better by the transparent yet durable combination of sand and simple chemicals we call glass. Reactions visited McFadden Art Glass in Baltimore, Maryland, to learn about the chemistry of this ancient material.
Energy efficiency labeling, also called Energy Performance Certification (EPC), is designed to inform homebuyers about how much energy a home will consume over the years. The hope was that it would also give sellers an advantage, too. But that hasn't been the case.
Fake blood is a staple of the Halloween horror film experience, but there's no one recipe to suit every filmmaker's needs. The chemistry of fake blood has always been tweaked to create the most realistic experience, or at least the most budget-friendly. From Alfred Hitchcock to Sam Raimi, join Reactions on a Halloween tour of the chemistry of gore.
Students, and people in general, can tend to overestimate their own abilities. But University of Utah research shows that students who overcome this tendency score better on final exams. The boost is strongest for students in the lower 25 percent of the class. By thinking about their thinking, a practice called metacognition, these students raised their final exam scores by 10 percent on average -- a full letter grade.
Pigs are socially competent and capable of learning. But the combination of these skills, learning by observing others, has been insufficiently studied so far. Exact copying and understanding of demonstrated actions -- highly developed learning abilities -- could not be proven. A new study at Vetmeduni Vienna with Kune Kune pigs, could now show for the first time that pigs do learn from each other. The intelligent animals also possess remarkable long-term memory after internalizing a technique.
Researchers find that university students have high levels of knowledge about self-regulated learning strategies, but many students don't use them. Specific training on how and when to use these techniques could help more students to maximize their academic potential.
Everyone seems to swear by a different pancake recipe. How can you griddle up the perfect pancakes for your Saturday morning breakfast? With chemistry, of course. Just in time for National Pancake Day, this video from Reactions will show you how to use chemistry to improve your flapjacks.
Researchers replicated a previous study to confirm that 4- to 6-year-old children can transfer learning of a puzzle from a touchscreen device to the physical version. This contradicts most previous research and suggests that different types of screen learning media could have different effects on whether children can transfer learned skills to the physical world.
Sushi is sublime. Just fresh fish and seasoned rice in its simplest form served one on top of the other, or rolled up with some veggies in a seaweed wrapper. But creates the subtle interplay of flavors in your tuna nigiri? Take a deep dive into the chemistry of rice, fish and seaweed in this video from Reactions: https://youtu.be/6F_OWtoTTrA