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Your search has returned 135 articles:
  • E-cigs create toxic vapors from harmless e-liquids

    Some people think electronic cigarettes, which don’t contain tobacco, are a safer alternative to true cigarettes. But smoking e-cigarettes, or vaping, exposes people to toxic gases that can harm the lungs and cause other health problems. Now, a new study shows that the hotter an e-cig gets — and the more it’s used — the more toxic compounds it gives off.

    Hugo Destaillats is a chemist at...

    12:00 PM, July 28, 2016 Chemistry, Health
    Readability Score: 7.5
  • Gasp! At the movies, your breaths reveal your emotions

    Spoiler alert: Scientists can figure out a movie’s emotional tone from the gasps of its audience. Sure, the sounds are a cue. But so are the chemicals that viewers exhale each time they sigh and scream. These gases could point the way to a subtle form of human communication, a new study suggests.

    “There’s an invisible concerto going on,” says Jonathan Williams. “You hear the music and...

    07:00 AM, July 8, 2016 Chemistry, Brain
    Readability Score: 8.2
  • Concrete science

    PHOENIX, Ariz. — Concrete is the most common artificial material on the planet. It’s used to make roads, bridges and dams. It anchors fence posts and makes durable outdoor stairs. Chances are, concrete forms the foundation of the building you live in. Humans use billions of tons of it each year. That’s enough for each man, woman and child on Earth to have their own personal concrete cube...

    12:10 PM, June 14, 2016 Technology, Materials Science, Chemistry, Sustainability
    Readability Score: 7.9
  • The newest elements finally have names

    On December 30, the International Union of Pure and Applied Chemistry, or IUPAC, announced the official discovery of four new elements. But back in December, none of these newbies yet had a name. That had to wait until today.

    Elements 113, 115, 117 and 118 — fill out the seventh row of the periodic table of the elements. All are superheavies. That’s why they sit at the bottom right of...

    15:54 PM, June 8, 2016 Chemistry
    Readability Score: 8.5
  • Identifying ancient trees from their amber

    PHOENIX, Ariz. — A small lump of amber dug up in Southeast Asia may have come from a previously unknown type of ancient tree. That’s what a Swedish teen concluded after analyzing the fossilized tree resin. Her discovery may shed new light on ecosystems that existed millions of years ago.

    Many fossils, or traces of ancient life, look like dull rocks. That’s because they’re typically made...

    12:00 PM, June 1, 2016 Fossils, Plants, Chemistry
    Readability Score: 8.1
  • Nanowires could lead to super-long-lived battery

    Your smartphone has a problem. It will last only as long as the rechargeable battery housed inside it. After about three years, what is inside that battery may have degraded so much that it can’t hold a charge anymore. And since it’s too expensive to replace, people end up buying a new phone when the old one’s battery dies. But new research might help extend the life of such batteries, perhaps...

    07:00 AM, May 17, 2016 Materials Science, Technology, Chemistry
    Readability Score: 7.3
  • Keeping samples cool without electricity

    PHOENIX, Ariz. — Doctors can face many challenges in remote areas. A big one can be a lack of refrigeration. If blood or vaccines get too warm, they can go bad. Freeze them, and the blood cells will pop or the vaccines will become inactive. So when electricity isn’t guaranteed, keeping samples at just the right temperature can be tough. Two teens have invented devices to overcome that problem...

    20:11 PM, May 10, 2016 Health, Chemistry
    Readability Score: 7.1
  • Key sugar for life on Earth could have formed in space

    An essential ingredient for life as we know it might have formed in space. Later, it might have rained down on a young Earth. That’s the finding of a new study.

    The ingredient is the simple sugar ribose (RY-bose). It is a crucial piece of the chemical machinery inside cells. This sugar can form when a blend of ices are blasted with ultraviolet radiation. That’s what Cornelia Meinert and...

    07:00 AM, May 2, 2016 Astronomy, Chemistry
    Readability Score: 8.0
  • Dwarf galaxy spawned heavy elements

    SALT LAKE CITY, Utah — In the earliest universe, a violent event churned up a dwarf galaxy. This upheaval left a lasting mark on the stars that formed there. That’s what scientists concluded after finding traces of elements heavier than iron that had been left behind by that event.

    The dwarf galaxy where this occurred is called Reticulum II. “It might be the first time where we can...

    07:00 AM, May 1, 2016 Astronomy, Chemistry
    Readability Score: 8.2
  • Particles in air help fatten clouds’ water droplets

    By making their own clouds, scientists have figured out how some of the fattest water droplets form. And, they find, it’s what’s on the outside that matters.

    Climate scientists need to understand how water droplets assemble into colossal clouds. That’s the only way they can reproduce cloud formation in the computer programs that they use to model climate change. Right now, that’s...

    07:00 AM, April 17, 2016 Weather & Climate, Chemistry
    Readability Score: 7.8

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