One day we may need to use the Moon as a "refilling station" or for upscale retirement communities. Before Space commercial developers get any ideas, they better count on engineering extra-tough, fortified walls.
New Scientist explains why:
If you want to have a base on the moon, you'd better build sturdy walls. Lunar grit kicked up by meteorite impacts moves at the speed of a shotgun blast, posing a potential risk to future astronauts. But such high-speed projectiles need not be a show-stopper for long-term lunar missions, provided we beef up the structural integrity of buildings, rovers and spacesuits.
"You have to have a suit or habitat design that can handle small meteors, and that may just as well handle these secondary ejecta particles," says Rob Suggs, head of the Lunar Impact Monitoring team at NASA's Marshall Space Flight Center in Huntsville, Alabama.
The airless moon is already pockmarked with craters made by incoming space rocks, and the bombardment is ongoing. With low gravity and no air resistance, dirt from an impact can be scattered far and wide. NASA worried about the risks from impact debris during the Apollo era, but at the time little was known about how often objects hit the moon and the speed of any material they kick up.
To learn more, head over to New Scientist.
Upstreamism advocate Rishi Manchanda calls us to understand health not as a "personal responsibility" but a "common good."
- Upstreamism tasks health care professionals to combat unhealthy social and cultural influences that exist outside — or upstream — of medical facilities.
- Patients from low-income neighborhoods are most at risk of negative health impacts.
- Thankfully, health care professionals are not alone. Upstreamism is increasingly part of our cultural consciousness.
The Bajau people's nomadic lifestyle has given them remarkable adaptions, enabling them to stay underwater for unbelievable periods of time. Their lifestyle, however, is quickly disappearing.
- The Bajau people travel in small flotillas throughout the Phillipines, Malaysia, and Indonesia, hunting fish underwater for food.
- Over the years, practicing this lifestyle has given the Bajau unique adaptations to swimming underwater. Many find it straightforward to dive up to 13 minutes 200 feet below the surface of the ocean.
- Unfortunately, many disparate factors are erasing the traditional Bajau way of life.
The Canadian professor's old-school message is why many started listening to him.
- The simplicity of Peterson's message on suffering echoes Buddha and Rabbi Hillel.
- By bearing your suffering, you learn how to become a better person.
- Our suffering is often the result of our own actions, so learn to pinpoint the reasons behind it.
An innovation may lead to lifelike evolving machines.
- Scientists at Cornell University devise a material with 3 key traits of life.
- The goal for the researchers is not to create life but lifelike machines.
- The researchers were able to program metabolism into the material's DNA.
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