Natural resources are woven into every aspect of our lives. From the air we breathe to the water we drink, we rely on Earth's natural resources to survive. We use some of these resources in their natural state for food, shelter and clothing; others become products that enhance our standard...
To understand how much we rely on ecosystem services,imagine a world where humans are the only species – perhaps in a spaceship far from Earth. There are no plants releasing oxygen,so you have to engineer a way to make it yourself.So straight away you need a chemical processing plant on...
According to researchers from theGEOMAR Helmholtz Centre for Ocean Researchin Germany, the drop is right now at a “non-critical” stage so far. But further decrease in these levels could spell disaster for marine life forms which rely on oxygen to survive. Moon’s Surface Seems to Have Trac...
Practical training for aircrew, and research on clinically relevant hypoxic conditions frequently rely exclusively on large, expensive hypobaric chambers.Here we describe and report the efficacy of a compact, economical, closed-loop rebreather-type reduced-oxygen breathing device (ROBD) for hypoxia ...
These needs operate at different levels, including requirements for subsistence, such as certain calorific intake and access to oxygen, and higher-level requirements, such as those involved in avoidance of significant harm, which may include social participation as a necessity to further our goals. ...
Before going on a spacewalk, astronauts must check each piece of equipment and make sure they have enough important supplies, such as oxygen and water.The astronauts on the Artemis missions, NASA’s next program to send the first woman and the first person of color to the moon, will wear ...
Do humans have microbial blindness, or do we rely on visual cues to the detriment of our other sensory data collection? Certainly, we live in a microbial-dependent world; without microbes, important geochemical cycles such as those of nitrogen, carbon, and phosphorus would collapse, decomposition...
Here’s everything you need to know about the science of freediving—and how to get started yourself. Doing The Impossible Dive Normally, when the body reaches very low oxygen levels of 65 percent, it seriously impairs the brain. Yet, expert divers have reached blood-oxygen saturation ...
However, carbon dioxide can also change the chemistry of the ocean, this is often referred to as ocean acidification. The excess carbon dissolves into oxygen in the water, producing a chemical called carbonic acid. This acid causes the ocean to become more acidic. In the eighteenth century, ...
In fact, some animals, such as sheep and goats, rely on rumen microbes to produce thiamine for them. Therefore, the ability to synthesize thiamine has been lost in many animals due to the abundance of thiamine in their natural diets [4]. Another reason why animals have lost the ability ...