Engineering Design
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Health & MedicineCookie Science 2: Baking a testable hypothesis
I would like to make a gluten-free cookie that my friend can eat. But to do that, I need to come up with a hypothesis to test.
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Health & MedicineFist bumps cleaner than handshakes
A handshake, while welcoming, can transmit lots of germs — many times more than a high five or, especially, a fist bump.
By Janet Raloff -
TechFashioning inks to ‘print’ tissues
3-D printing may one day create life-saving tissues and organs for transplants. But first researchers are learning how to tailor cell-filled “inks” for use in inkjet printers.
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ChemistryChemistry: Green and clean
“Green” means environmentally friendly and sustainable. Green chemistry creates products and processes that are safer and cleaner — from the start.
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Wire critter shows power of surface tension
Water striders walk on water by using surface tension. Now you can do the same with a wire critter weight-lifting contest.
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MicrobesSuperbugs: A silent health emergency
Have antibiotics become too popular? Overusing these medicines fuels resistant germs that pose a global health threat.
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TechA homemade bungee cord could save kids in hot cars
Babies left in hot cars are in serious danger. A middle-school student invented a simple reminder to help parents keep their children safe.
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SpaceWhat to wear on Mars
NASA released details of the new, more flexible apparel being designed for long-distance travelers — such as those bound for another planet.
By Andrew Grant -
PhysicsHazing: How to hide in nearly plain sight
A new system takes advantage of a translucent fog of particles to hide otherwise obvious objects.
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Kid inventors win big with a sign in the sky
A team of kids designed a high-flying sign to help disaster victims get critical information during a potential blackout.
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Inventors give the White House a Maker-over
Inventors invaded the White House yesterday for the first ever White House Maker Faire, decorating the lawn with robot giraffes and filling the house with technology and engineering.
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Rocket competition a blast for young scientists
Young rocket scientists competed in Washington, D.C. last month, flying rockets with precious cargo: eggs. The top 10 teams split $60,000 in prizes.