Another reason to hate glitter — it damages river ecosystems
The research found that after 36 days, the presence of glitter halved the root length of common duckweed (Lemna minor), while levels of chlorophyll in the water were three times lower than in control conditions, indicating reduced levels of phytoplankton, or microalgae. Glitter is used in a variety of decorative ways, including on clothing, in arts and crafts, and in cosmetics and body paint...read more
Teacher's viral Chromebook hack is a must for remote learning
If there's anything the majority of parents can agree upon in these divisive times, it's this: Remote learning is hard. In the spirit of making it a bit easier, one teacher's viral post is doing just that. It turns out with the touch of a few keys, your kid's Chromebook can have a split screen, allowing them to be on a meeting and look at their work at the same time...read more
Seven natural phenomena worth traveling to Alaska for
Alaska is a place of extremes. Midnight sun. Polar night. Winter temperatures of 50 below. Summers lush with wildflowers and blackberries. The continent’s tallest mountain. More coastline than all other 49 states combined. The state is also home to some of the wildest natural phenomena in the world. From the tidal bore of Turnagain Arm to the gleaming “sundogs” that appear on the coldest days, here’s a guide to the state’s once-in-a-while wonders...read more
The making of 'Son of the Storm’
I was recently commissioned by Lauren Panepinto of Orbit books to create the cover for the upcoming novel, ‘Son of the Storm’, by Suyi Davies Okungbowa. Some clients come to me with no idea of what they want to see on the cover. They give me a manuscript, and just let me see where it takes me. Other clients already have very specific ideas in mind, and come to me because they know I, in particular, can achieve the solution they are going for...read more
202 BC Battle of Zama: Hannibal Barca and the Carthaginian army are defeated by Roman legions under Scipio Africanus, ending 2nd Punic War
1943 Streptomycin, the first antibiotic remedy for tuberculosis, is isolated by researchers at Rutgers University
1987 Black Monday: Stock markets around the world crash, including the Dow Jones stock index, which falls 508.32 points (22%), 4½ times the previous daily record
2015 US scientists from University of California find evidence life on earth may have begun 4.1 billion years ago, 300 million earlier than previously thought
Why Planes Don't Fly Over the Pacific Ocean
Why do airlines avoid the Pacific Ocean? You might think it was a safety issue. The Pacific is the largest and deepest of the world’s oceans. If a plane encounters a problem over a seemingly endless and bottomless pond of water, the pilots are going to have a rough time finding a safe spot to set her down.
Guessing that it is a safety precaution wouldn't be entirely wrong. When planning a route, many pilots prefer to maximize the number of airports along their path. Emergencies are incredibly rare relative to how many planes take to the skies every day. That said, it isn’t the main reason airlines tend to avoid making a straight shot east to west.
E/Z Alkenes, Electrophilic Addition, & Carbocations
Alkenes are an important type of molecule in organic chemistry that we’re going to see a lot more of in this series. But before we can really get into the many cool reactions alkenes do, we need to go over some of the basics. In this episode of Crash Course Organic Chemistry, we’ll review and build on our knowledge of alkene nomenclature, revisit our friend the carbocation, and learn Markovnikov’s Rule: an important tool that will help us predict the products of addition reactions involving alkenes.
Lesson by Iseult Gillespie, directed by Lippy.
What is digital literacy?
Find out what digital literacy is in the first episode of our Digital Literacy course – part of our 'Go The Distance' course, giving you the skills and knowledge you need to be a top-class distance learner!
For more information about digital literacy, English language and study skills for distance learners, visit us at http://www.bbc.co.uk/learningenglish/....
10 Cutest Exotic Animals You Cannot Own As Pets
Let’s find out, as we count down the 10 Cutest Baby Animals You Cannot Own as Pets. Welcome to another episode of 4 Ever Green, and just in case your dream animal comes up in today’s video, we’ve got you covered with a few neat replacements.
Let’s get into it.