How did Earth's atmosphere get oxygen? So how did Earth end up with an atmosphere made up of roughly 21 percent of the stuff? The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbesconduct photosynthesis: using sunshine, water and carbon dioxide to produce ca...
How are people able to breathe inside a submarine? Is it harmful to breathe 100-percent oxygen? How does an oxygen canister work? In SCUBA diving, what causes "the bends"? What exactly makes people dizzy when they spin? More Great Links Sofnolime CCR 2000 Rebreather Frog Rebreather Closed-...
Radiation comes in many forms and is all around us, all the time. Sometimes it's dangerous; sometimes it's not. Radiation is both natural and man-made. Our bodies are exposed to natural radiation every day -- from soil and underground gases to cosmic radiation from the sun and ...
Some surprising professions that require compressed air stored in diving tanks include firefighters, underwater welders, marine contractors and submarine workers. 2. Hospitals Compressed air is needed for a wide range of tools and systems throughout the medical field. Hospitals rely on medical air ...
The tsunami was generated by a submarine landslide in the Norwegian Sea known as the Storegga slide. Recent research suggests slope failures like this have occurred more frequently than previously thought. Scientists have debated whether or not the deposits were from a storm surge. However, the sed...
1. Oxygen levels are going to drop. Fast. The first disaster to strike is that theoxygen levelsin your tank are going to drop. It’s a fact – your fish need air to breathe. And without it, well, let’s just say things get pretty grim. ...
Officials overseeing the search for the submarine said the discovery of debris from the watercraft is consistent with a ‘catastrophic implosion.’ What would such an event have meant for the five occupants? Implosions like explosions are very violent. As the hull breaks apart under t...
How Deep Can You Go in a Submarine? How Long Can Submarines Stay Underwater? Can You See Outside When You are Underwater? What Does it Look Like Through the Periscope? How do You Know Where You are Going Underwater? Can you Feel the Waves on a Submarine When it's Under the Water?
Ma and Pa, two unseemly entrepreneurs of wealth, rented out the submarine for the family vacation, thinking it would broaden the horizons of the young twins’ minds. It would open them up to worlds they could neither have seen nor imagined elsewhere. But Kitty and Pup had other ideas. ...
The main theme of the conference was “innovation, development, exchange, and cooperation” with the clearly military goal of deploying aerostats for “early warning, command and communication, and anti-submarine activities.” The conference was particularly interested in topics such as how to increas...