Cameron Radka

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Soot, Comet Ice, And Medical Powders All Have This Number In Common

A new universal packing density for things made of small, rigid particles<p>If you were to pack a bowl with billiard balls—I know, nobody does this in real life—you would find the balls filled the bowl to a density of 74 percent. If you were to pack a pool with bowling balls—<i>really</i> nobody does this in …

Scientists design a collider that turns light into matter

We could see physical matter created out of nothing but light within 12 months if a new particle collider works as posited.<p>Ever since the 1960s, when the food synthesiser made its appearance in <i>Star Trek</i>, the idea of a machine that could seemingly make something from nothing has been the kind of …

Physics

I Got It From My Momma: 4 Surprising Things To Thank Mom For

A love of garlic, onions and other strong flavors<p>Babies learn to taste and smell while still in the womb, and as they gulp mouthfuls of amniotic fluid, they become accustomed to flavors of mom’s food. According to a 2007 study in Pediatrics, flavors like vanilla, carrot, garlic, anise and mint have …

Dark matter and drugs

Dark matter is an enduring and exciting puzzle in physics. Multiple astrophysical observations give really strong evidence that most of the matter out there in the universe is invisible – or, more precisely, only affects other matter via its gravitational attraction. Cosmological models, which we …

How 3-D Printing Body Parts Will Revolutionize Medicine

Welcome to the age of bioprinting, where the machines we've built are building bits and pieces of us.<p>A device the size of an espresso machine quietly whirs to life. The contraption isn't filled with fresh, pungent grounds but, instead, spoonfuls of opaque, sterile goo. Its robotic arm moves …

New medical gel grows bone tissue exactly where you need it

Repairing seriously damaged bones is normally a delicate art; while you want to regrow bones quickly, you also have to carefully manage that growth to produce the right shape. Thankfully, Rice University has created a gel that makes it easier to produce only the bone tissue a patient needs. The …

A Tractor Beam Made Of Sound Waves

The device can move around centimeter-sized objects.<p>Tractor beams (short for "attractor beams," which can bring one object closer to another from a distance) are a common trope in science fiction. But could they be made in real life? Researchers made news earlier this year when they created a kind …

Physics

Scientists find switch for people to control their dreams

Have you ever had a dream where you realized you were dreaming? The technical term is a lucid dream. And people who are lucky enough to have them can often control the dreams, as well. This week, researchers showed for the first time that they could use electrical stimulation to switch lucid …

Why Synthetic Biology Is the Field of the Future — NOVA Next | PBS

Most Americans may not be familiar with synthetic biology, but they may come to appreciate its advances someday soon. Synthetic biology focuses on …

Biotechnology

New State Of Light Revealed With Photon-Trapping Method

A theoretical physicist has explained a way to capture particles of light called photons, even at room temperature, a feat thought only possible at bone-chillingly cold temperatures.<p>Alex Kruchkov, a doctoral student at the Swiss Federal Institute of Technology (EPFL), has built the first …