Posted on December 5th, 2015 by Joy Schwabach
ChemicalOfTheDay.squarespace.com gives you info on thousands of chemicals in the products we use. Joy switched her “natural” skin lotion after finding out it has phenoxyethanol, an aromatic form of ethanol that has raised some issues. Whole Foods and other stores have a variety of lotions without harmful chemicals. NOTE: The U.S. Environmental Protection Agency estimates there are approximately 75,000-80,000 chemicals in daily use, of which only a few hundred have been tested for toxicity. The European Union equivalent agency says the number is 140,000. A Canadian agency says about 30,000 are in common use.
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Posted on November 28th, 2015 by Joy Schwabach
GlobalSchoolNet.org links children worldwide for science projects and cultural experiences. A current project looks at the problem of plastic in the oceans.
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Posted on November 28th, 2015 by Joy Schwabach
“27 Science Fiction ideas that Became Science Facts in 2012. Click to find descriptions of an invisibility cloak, a computer controlled by thought, a photo of DNA, genetically-modified silk stronger than steel, spray-on skin and genetically modified mice that lived three times longer than normal — the equivalent of a 200 year-old human being.
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Posted on October 19th, 2015 by Joy Schwabach
ViralNova.com has an article entitled “The Coolest Reactions Your Science Teacher Never Showed You.” Watch a solid object floating on a gas. See gallium melt in the palm of someone’s hand. Watch some explosive dirt.
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Posted on October 8th, 2015 by Joy Schwabach
YouTube.com/user/RoyalInstitution has lectures from Britain’s 216 year old Royal Institution, an organization founded for research and teaching in the sciences. Of particular note are their famous Christmas lectures. We recently watched “What a Wonderful World: One Man’s Attempt to Explain the Big Stuff,” by Marcus Chown. He spoke on “why babies are powered by rocket fuel, why slime molds have 13 sexes, and why 98% of the Universe is invisible.”
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Posted on August 28th, 2015 by Joy Schwabach
CuriosityStream.com claims to have the world’s best documentaries from the BBC and other channels around the world, plus original programming. The first month is free, then it’s $3 a month if you want to continue. But you have to give them a credit card for the free trial — and we never like that.
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Posted on August 2nd, 2015 by Joy Schwabach
Stuffin.Space has a “3D Interactive Map of Absolutely Every Object Orbiting Earth.” Put together by incoming Texas college freshman James Yoder, it includes rockets, satellites and 20,000 pieces of junk. Blue objects are rocket bodies, red is for satellites, gray is debris. You also get the launch date, velocity and other details. (A few years ago, a deep hole in one of windows of the space station was found to have been caused by a collision with a tiny paint chip.)
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Posted on July 1st, 2015 by Joy Schwabach
“Smarter Every Day” is a YouTube channel for practical experiments. In one, a guy changed a bicycle’s handlebars so that steering left made it go right and vice versa. It took him eight months to learn how to ride again. Switching the handlebar directions on a child’s bicycle took the child only two weeks to readjust. Go to YouTube.com and search on “smarter every day.”
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Posted on June 25th, 2015 by Joy Schwabach
If you can’t tell the difference between a White-Breasted Nuthatch and a Blue jay, we’re ashamed of you. You probably could use the “Merlin Bird ID” app from the Cornell University Ornithology Lab. Non-smart phone owners can skip the app and get the information they want from AllAboutBirds.org.
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Posted on May 23rd, 2015 by Joy Schwabach
“List of Free Science Books” from physicsdatabase.com. This site has hundreds of free books in chemistry, physics, astronomy, math, physiology, etc., all online. Click on a title and the online version pops right up. We’re intrigued by “The Wonder Book of Knowledge.” The table of contents lists topics like “Why do we Smile when we are pleased?” “How did the Dollar Sign originate?” “Why do some of us have freckles?”
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