David M. Ewalt
@dewalt
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Editor in Chief, Scientific American. I drop science like Galileo dropped the orange.
Brooklyn, NY
Joined September 2008
Look how excited I am to get a sneak peek of the Public Science Common at the Boston @museumofscience! It's secret inside so no pictures, but this is going to be an incredible space for events and science education. I can't wait for many collaborations with @sciam... stay tuned!
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What would the world look like if we changed the value of pi? Doomguy can tell you.
scientificamerican.com
What would the world look like if we changed the value of pi? Whether in the real world or a game environment, the answer is complex
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One of the cool things about my job: Where else is the most-read story of the day going to be about noperthedrons?
scientificamerican.com
The noperthedron has a surprising property—which disproves a long-standing conjecture
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Science Quickly is now in 4th place @signalawards Listener’s Choice #signalawards. RT + VOTE:
signalaward.com
The Signal Awards is mission-focused on uplifting the podcast medium by recognizing the most potent, meaningful and unprecedented audio projects being made today.
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Our investigation into disappearance of Shiid-birood (“the iron rock”) reveals a journey of lies, smuggling and possibly death across the seamy world of black market collecting.
scientificamerican.com
How a space rock vanished from Africa and showed up for sale across an ocean
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A new preprint study reveals that New York City’s rats aren’t just survivors—they’re talkative city dwellers with their own hidden nightlife. Mapping their movements and conversations could offer insights to transform urban planning and pest control.
scientificamerican.com
A new preprint field study reveals that New York City’s rats aren’t just survivors—they’re talkative city dwellers with their own hidden nightlife. Mapping their movements and conversations could...
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"To know sickle cell disease is to know medicine." Dr. Wally Smith, Florence Neal Cooper Smith Professor at Virginia Commonwealth University, encourages @MSMEDU students to study the science and join Sickle Cell warriors in the fight. At #FutureOfSickleCell with @sciam
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My first "From the Editor" letter at Scientific American rounds up some of the amazing stories in our 180th birthday issue, and highlights our cover story about a potential cure for food allergies!
scientificamerican.com
Our anniversary celebration begins with an outstanding collection of stories about times that science itself has made a full about-face
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“The dogs, because of their amazing sense of smell and detection capabilities, are demonstrating to us what technology could look like 10 to 15 years from now.”
scientificamerican.com
New research is revealing how disease-smelling dogs can excel
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A lighting flash that spanned from East Texas to an area near Kansas City is officially the longest lightning strike ever measured.
scientificamerican.com
A lighting flash that spanned from East Texas to an area near Kansas City in 2017 is officially the longest lightning strike ever measured, according to the World Meteorological Organization
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Tabletop RPGs like Dungeons & Dragons are can be powerful tools for mental health. Science Quickly spoke to researchers and dungeon master Brennan Lee Mulligan to explore how collaborative storytelling can help us thrive—and even be used as therapy.
scientificamerican.com
Researchers and therapists explore the mental health benefits of tabletop role-playing games like Dungeons and Dragons.
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2025 is shaping up to be a particularly bad year for tick-borne diseases in the US. Here's why, and what you can do to protect yourself.
scientificamerican.com
A vector ecologist explains the complexities of tracking tick-borne diseases like Lyme in a climate-changed world
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Look up! Two meteor showers hit their peak tonight AND a third is ramping up. Here's how to watch:
scientificamerican.com
The Southern Delta Aquariids and the Alpha Capricornids are due to peak at the same time and may add up to something magical
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How complex can a simple game be? Tetris pushes even supercomputers to their limits and amazes mathematicians.
scientificamerican.com
How complex can a simple game be? Tetris pushes even supercomputers to their limits and amazes mathematicians
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Half the country will be broiling under a head dome for the next few days. Here's what science has to say about keeping your house cool and efficient:
scientificamerican.com
When extreme heat arrives, here are science-based tips to keep your home cool, from the most efficient way to use air conditioning to strategic uses of fans
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Why is it so humid today? Blame the corn.
scientificamerican.com
Humid heat is blanketing the eastern U.S. this week, exacerbated by “corn sweat” in the Midwest
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After photos showed President Trump with swollen ankles and bruised hands, the White House revealed he has chronic venous insufficiency. Here's what that means:
scientificamerican.com
After photographs showed President Donald Trump with swollen ankles and bruised hands, the White House revealed he has chronic venous insufficiency—a blood vessel disease that affects circulation in...
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Earlier this month astronomers spotted a mysterious interstellar object zooming through our solar system. As it blasts past Jupiter's orbit and closes in on Mars, scientists are racing to learn what they can, but 7 big mysteries remain...
scientificamerican.com
Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever
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AI data centers consume vast amounts of electricity and water because they generate so much waste heat, and need to be constantly cooled. China's new solution: Sink them in the ocean.
scientificamerican.com
China is pulling ahead of the rest of the world in sinking data centers that power AI into the ocean as an alternate way to keep them cool
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