The highest barometric pressure ever recorded was 1083.8mb (32 in) at Agata, Siberia, Russia (alt.
According to the literature, the diaphragm and related thoracic muscles can exert maximum exhalation pressures of 44 to 88 mmHg and maximum inhalation pressures of negative 29 to 74 mmHg (Lausted et al.
Cylcone Mahina in the record books
According to The Pearling Disaster, 1899, at Mahina's peak Captain Porter took a barometric pressure reading of 27 inches of mercury (inHg), equal to 914 hPa.
The world record for lowest pressure (at sea level) was 652.5 mmHg recorded inside Typhoon Tip on October 12, 1979, in the western Pacific Ocean.
A figure of 870 millibar (25.69 in) was recorded on 12 Oct 1979 by the US Air Weather Service 483 km (300 miles) west of Guam in the Pacific Ocean in the eye of Super Typhoon Tip which involved wind speeds of 165 kts (305 km/h; 190 mph).
In order to breach the human skin the ejection pressure has to be at least 100 pounds per square inch (psi)8 while most high-pressure guns and injectors reach pressures of 2000 to 12000 psi3. The puncture wound is small, inconsiderable and not distinct.
A normal person is capable of a breath pressure of 1-2 psi, so by pressure breathing you can increase your lung pressure from 10.1 psi to 11.1-12.1 psi during each exhale, closer to the 14.7 psi you are used to.
Although the highest pressure to which organisms are known to be exposed on Earth does not exceed 150 MPa, laboratory results indicate that at least a fraction of the population of bacteria or complex life forms can survive exposure to pressures far above this threshold.
One experiment shows that the balloon reaches a relatively constant pressure of 810 mmHg until it gets close to its maximum elasticity point and then increases to 820, 830 and finally 840 mmHg when it pops.
Did you know that the human jaw is capable of exerting up to 125 kg of force in a single bite? On average, the female bite registers at 50 kg, while the male bite registers at 70 kg. There is a wide variance in pressure between the front and the back teeth, with the back teeth (molars) bearing most of the stress.
—Why does outer space look black? "No human can survive this — death is likely in less than two minutes," Lehnhardt said. According to NASA's bioastronautics data book, the vacuum of space would also pull air out of your lungs, causing you to suffocate within minutes.
Experts believe any pressure washer having a PSI of above 2000 can harm humans if not handled properly. That is why professionals mostly use high-level PSI pressure washers.
Fluid or high pressure air injected under the skin at pressures as low as 7 bar (100 psi) can cause crippling injuries or even death if not treated promptly.
While skin can take tremendous force, and it is possible to get away from a brutal hit with no more than a bruise, too much force with a blunt sword could pull more at the areas around the tip of the blade than the tip itself.
High pressure means high performance. The 10,000 PSI line of tools includes the strongest cutter manufactured today: the S 700. Plus, these high-pressure rescue tools are built a bit lighter and are faster to the point of resistance.
7 -- Pressure, in PSI, that a swimmer feels at the bottom of a 16-foot-deep pool. 60-70 -- Water pressure, in PSI, of a typical municipal water system. 70 -- Pressure, in PSI, of the typical human jaw chewing food. More than 700 -- Pressure, in PSI, at which a human can grind his or her teeth at night.
Hence a pressure of 1 psi may be expressed as being equivalent to a head of 2.31 feet of water. (1 psi / 433 psi/ft. of water). In air flow through ducts, very small pressures are encountered, and these are commonly expressed in inches of water.
The typical home pressure washer can go as high as 4000 PSI, and it only takes 2,901 PSI to punch through the skin. Power washers that reach 40,000 PSI can even puncture steel. Pressure washers can damage both you and your property, so it's essential to know what PSI is and proper safety precautions.
The strong spray from a pressure washer can cause serious wounds that might first appear minor. Wounds that appear minor can cause a person to delay treatment, increasing risk for infection, disability or amputation.
It's also very cold in space. You'll eventually freeze solid. Depending on where you are in space, this will take 12-26 hours, but if you're close to a star, you'll be burnt to a crisp instead. Either way, your body will remain that way for a long time.
Due to the fact that a human has never actually been in space without a suit, we must look to the following test to find our information. On December 14, 1966, Jim LeBlanc accidentally became the only human to survive space like conditions.
At most, an astronaut without a suit would last about 15 seconds before losing conciousness from lack of oxygen. (That's how long it would take the body to use up the oxygen left in the blood.)
rex—about 35,000 newtons— or to the puny biting power of humans: 300 newtons. Previous bite force estimates for juvenile T. rexes—based on reconstruction of the jaw muscles or from mathematically scaling down the bite force of adult T. rexes—were considerably less, about 4,000 newtons.
Complications from a human bite can be very serious, including severe infection and permanently damaged bones, joints and/or tendons.