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Eggs found to remove salt and microplastics from seawater

Other proteins work as well meaning the process can be scaled without interfering with food supplies.

Researchers at Princeton Engineering have found that egg whites can be used to cheaply remove salt and microplastics from seawater, according to a press release by the institution published on Thursday.

The scientists used the food substance to create an aerogel, a lightweight and porous material that can be used in many types of applications, including water filtration, energy storage, and sound and thermal insulation.


Princeton scientists discovered that egg whites can create a filtration process that requires only gravity to operate and wastes no water. They are now looking for other uses for the substance.

Scientists create edible drone built of rice cakes and gelatin that can save lives

The size of the wing, made of compressed puffed rice, depends on the recipient’s nutrition requirements.

The IEEE/RSJ International Conference on Intelligent Robots and Systems in Kyoto last week saw an ingenious creation presented by researchers from the Swiss Federal Institute of Technology Lausanne. Their paper described a drone made from rice cakes.

Mind you, this was no light matter. Titled ‘Towards Edible Drones for Rescue Missions: Design and Flight of Nutritional Wings,’ by Bokeon Kwak, Jun Shintake, Lu Zhang, and Dario Floreano from EPFL, the paper detailed a drone that could “boost its payload of food from 30 percent to 50 percent of its mass”, according to a release.

Artificial intelligence makes enzyme engineering easy

You can’t move a pharmaceutical scientist from a lab to a kitchen and expect the same research output. Enzymes behave exactly the same: They are dependent upon a specific environment. But now, in a study recently published in ACS Synthetic Biology, researchers from Osaka University have imparted an analogous level of adaptability to enzymes, a goal that has remained elusive for over 30 years.

Enzymes perform impressive functions, enabled by the unique arrangement of their constituent amino acids, but usually only within a specific cellular environment. When you change the cellular environment, the enzyme rarely functions well—if at all. Thus, a long-standing research goal has been to retain or even improve upon the function of enzymes in different environments; for example, conditions that are favorable for biofuel production. Traditionally, such work has involved extensive experimental trial-and-error that might have little assurance of achieving an optimal result.

Artificial intelligence (a computer-based tool) can minimize this trial-and-error, but still relies on experimentally obtained crystal structures of enzymes—which can be unavailable or not especially useful. Thus, “the pertinent amino acids one should mutate in the enzyme might be only best-guesses,” says Teppei Niide, co-senior author. “To solve this problem, we devised a methodology of ranking amino acids that depends only on the widely available amino acid sequence of analogous enzymes from other living species.”

Most US pet food contaminated with ‘forever chemicals’, study finds

“This represents a significant source of PFAS in the home environment,” said Sydney Evans, a science analyst with the EWG.

PFAS, or per-and polyfluoroalkyl substances, are a class of about 12,000 compounds used to make products resist water, stains and heat. They’re called “forever chemicals” because they don’t naturally break down, accumulating in humans and animals. PFAS are linked to a range of serious health problems like cancer, birth defects, kidney disease and liver disease.

The chemicals are likely used in pet food bags to make them repel grease. For cats, the highest levels were detected in the Meow Mix Tender Centers salmon and chicken flavors dry cat food, at more than 600 parts per million (ppm). Purina Cat Chow Complete chicken showed over 350 ppm, while Blue Buffalo, Iams and Rachael Ray Nutrish all had levels of less than 100 ppm.

Eat This Drone

Most delivery drones can only carry about one-third of their mass as payload, because most of their mass is both critical, like wings, and comes in the form of things that are essentially useless to the end user, like wings. But EPFL researchers have invented a drone with wings made from rice cakes.

Study involving CU-Boulder shows fertilizer can be made from sunlight

A group of scientists led by the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) in Golden and involving the University of Colorado Boulder has developed a new, eco-friendly method to produce ammonia, the main ingredient of fertilizer, using light.

The researchers discovered that light energy can be used to change dinitrogen (N2), a molecule made of two nitrogen atoms, to ammonia (NH3), a compound of nitrogen and hydrogen. The researchers hope the newly discovered, light-driven chemical process that creates ammonia can lead to future developments that will enhance global agricultural practices while decreasing the dependence of farmers on fossil fuels.

Traditionally there have been two main ways to transform nitrogen, the most common gas in Earth’s atmosphere, for use by living organisms. One is a biological process that occurs when atmospheric nitrogen is “fixed” by bacteria found in the roots of some plants like legumes and then converted to ammonia by an enzyme called nitrogenase.

Bumble bees like to ‘play’: new video study shows them moving balls for fun

So even insects like to play and have fun.


Bumble bees enjoy playing with balls, suggesting insect minds are far more sophisticated than previously thought, researchers have found.

It is the first study to prove that the insects like to play with toys, even when there is no apparent benefit to their actions.

Researchers at Queen Mary University of London found that bees spontaneously chose to ignore food to roll wooden balls, with younger bees opting to roll more balls than older bees.

It suggests that younger bees are more playful, just like human children.

Existential Hope: Creon Levit | On space and the long-term future

Are we alone in the universe? What could a future for humans in space look like? And what would Creon’s advise to Elon Musk be if he wants to make a self-sufficient mass colony there? This Hope Drop features Creon Levit, chief technologist and director of R&D at Planet Labs.

Creon Levit is chief technologist at Planet Labs, where he works to move the world toward existential hope via novel satellite technologies. He also hosts Foresight Institute’s Space Group.

Creon speaks on:

- His experiences working with NASA & Planet Labs.
- Natural systems technologies.
- Regenerative Agriculture.
- His vision for the future.
- And much more!

Creon is chief technologist and director of R&D at Planet Labs, and a Foresight Institute senior fellow. He previously worked at NASA Ames Research Center in Silicon Valley, where he was one of the founders of the NAS (NASA Advanced Supercomputing) division, co-PI on the Virtual Wind Tunnel project, co-founder of the NASA Molecular Nanotechnology Group (the first federally funded research lab devoted to molecular nanotechnology), co-PI on the hyperwall project, investigator on the Columbia accident investigation board, member of the NASA engineering and safety center, investigator on the millimeter-wave thermal rocket project, the Stardust re-entry observation campaign, PI on the LightForce project, special assistant to the center director, and chief scientist for the programs and projects directorate.

Submit your contribution to the storytelling bounty from Creon’s prompt to “Imagine a shift in human nature where we could all have love, community, technology, and adventure, as well as lack of severe hardship or fear.” here: https://680d4kcs6ki.typeform.com/to/jHROTs6z.

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