Toggle light / dark theme

https://youtube.com/watch?v=-5jcq3RlxJQ

Cell by Cell

3D-printing technology has made significant strides over the past several years. What started as a tool for producing small objects can now be used to craft food, build houses, and even construct “space fabric.”

One of the tech’s most impressive applications, however, is the creation of artificial tissues and organs, a process known as 3D bioprinting, and now, a team of researchers from the University of Oxford has developed a new method that takes 3D bioprinting to the next level. They published their work in the journal Nature Communications.

Read more

Honey bees really are tiny hardworking superheroes of the insect world — not only do they keep our agriculture going by pollinating many of our crops, but they also produce a myriad of beneficial substances, like honey and beeswax.

For thousands of years honey has been prized for its topical antiseptic properties. But now researchers have discovered that its lesser-known cousin, royal jelly, has special molecules that speed up wound healing.

Royal jelly is the superfood worker bees secrete and feed all their larvae, especially the queen bees. While queens are developing, they basically float in a pool of this stuff, and humans have figured out how to stimulate queen larva production to then harvest the royal jelly.

Read more

SAN FRANCISCO (Reuters) — Amazon.com Inc is exploring a technology first developed for the U.S. military to produce tasty prepared meals that do not need refrigeration, as it looks for new ways to muscle into the $700 billion U.S. grocery business.

The world’s biggest online retailer has discussed selling ready-to-eat dishes such as beef stew and a vegetable frittata as soon as next year, officials at the startup firm marketing the technology told Reuters.

The dishes would be easy to stockpile and ship because they do not require refrigeration and could be offered quite cheaply compared with take-out from a restaurant.

Read more

Pan’s company is at the vanguard of a trend that could have devastating consequences for Asia’s poorest nations. Low-cost manufacturing of clothes, shoes, and the like was the first rung on the economic ladder that Japan, South Korea, China, and other countries used to climb out of poverty after World War II. For decades that process followed a familiar pattern: As the economies of the early movers shifted into more sophisticated industries such as electronics, poorer countries took their place in textiles, offering the cheap labor that low-tech factories traditionally required. Manufacturers got inexpensive goods to ship to Walmarts and Tescos around the world, and poor countries were able to provide mass industrial employment for the first time, giving citizens an alternative to toiling on farms.


Automation threatens to block the ascent of Asia’s poor. Civil unrest could follow.

Read more

Ever wonder how astronauts will live on other worlds? Welcome to the Human Exploration Research Analog, or HERA, a habitat at NASA’s Johnson Space Center in Houston built to simulate the isolation of missions to deep space. You can take a tour of the HERA habitat with NASA interns in this new video in the style of the MTV series “Cribs.”

“HERA is a unique three-story habitat designed to serve as an analog for isolation, confinement, and remote conditions in exploration scenarios,” NASA officials explained in a video description. “This video gives a tour of where crew members live, work, sleep, and eat during the analog missions.”

Read more

When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine — an overload of sugar spikes dopamine levels and leaves you craving more.

With this video prepared by TED-Ed, Nicole Avena explains why sweets and treats should be enjoyed in moderation.

Read more

The risk associated with any climate change impact reflects intensity of natural hazard and level of human vulnerability. Previous work has shown that a wet-bulb temperature of 35°C can be considered an upper limit on human survivability. On the basis of an ensemble of high-resolution climate change simulations. we project that extremes of wet-bulb temperature in South Asia are likely to approach and. in a few locations. exceed this critical threshold by the late 21st century under the business-as-usual scenario of future greenhouse gas emissions. The most intense hazard from extreme future heat waves is concentrated around densely populated agricultural regions of the Ganges and Indus river basins. Climate change. without mitigation. presents a serious and unique risk in South Asia. a region inhabited by about one-fifth of the global human population. due to an unprecedented combination of severe natural hazard and acute vulnerability.

The risk of human illness and mortality increases in hot and humid weather associated with heat waves. Sherwood and Huber proposed the concept of a human survivability threshold based on wet-bulb temperature (TW). TW is defined as the temperature that an air parcel would attain if cooled at constant pressure by evaporating water within it until saturation. It is a combined measure of temperature [that is. dry-bulb temperature (T)] and humidity (Q) that is always less than or equal to T. High values of TW imply hot and humid conditions and vice versa. The increase in TW reduces the differential between human body skin temperature and the inner temperature of the human body. which reduces the human body’s ability to cool itself. Because normal human body temperature is maintained within a very narrow limit of ±1°C. disruption of the body’s ability to regulate temperature can immediately impair physical and cognitive functions.

Read more