Century eggs, or pidan, are a preserved food made by fermenting duck eggs in alkali. The green and black color of these eggs is not very appealing at first blush, and the smell is even worse. However, this Ming dynasty innovation effectively extended the shelf life of eggs and has been adopted as a beloved comfort food in China and throughout the world. Reactions explains the chemistry behind this unusual culinary offering.
Los Angeles Children in Disasters Working group identified the need for daycare providers to be prepared during disasters, and together with Children's Hospital, Los Angeles, and Save the Children, collaborated to prepare a video.
Nobody really likes bargain hot cocoa powder. It's lumpy, it's too thin and it leaves scummy residue behind. But premium hot cocoa mix is too expensive for some imbibers. Fortunately, Reactions is here with some easy kitchen chemistry hacks to turn cheap cocoa mix into a satisfying cold weather pick-me-up.
Thirty years ago it was rare for a student with ASD to enter college. But over the past decades, there has been much improvement in the detection and awareness of ASD in children. Now, with the provision of effective treatments, those with average or above average intellectual abilities are enrolling at universities. Now a special issue addressing the experiences of ASD students has been published in Springer's Journal of Autism and Developmental Disorders.
A study recently published in Frontiers in Psychology has found that children are significantly more attentive and engaged with their schoolwork following an outdoor lesson in nature. Teachers could teach uninterrupted for almost twice as long during a subsequent indoor lesson. Outdoor lessons may be an inexpensive and convenient way to improve student engagement.
Acids are reactive, with even weak acids like vinegar interacting with other materials to wow students. But strong acids can really put on a show. For example, aqua regia, or royal water, is a mixture of two strong acids -- hydrochloric and nitric acids -- that can dissolve gold, a noble metal. This reaction can be put to use. Watch as Reactions employs some acid know-how to explain a chemistry detective story to sort real gold from its imposters.
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.