The Bell X-1 rocket plane was the first plane in recorded history to break the sound barrier. What causes a sonic boom? Pressure waves, aka sound waves, propagate at the speed of sound. When an aircraft is moving faster than the speed of sound (breaking the sound barrier), the pressure...
, an Air Force test pilot, broke the sound barrier in an X-1 rocket plane flying over Victorville, Calif. Although Yeager himself didn't become part of the Mercury manned spaceflight program, he served as a prototype for the kind of person NASA felt could succeed as an astronaut. By the...
To become the fastest sailor in the world, he’s going to have to break through the nautical equivalent of the sound barrier—the so-called 50-knot barrier (about 57 miles per hour). The name is something of a misnomer, because the barrier can drift slightly higher or lower depending on...
In this configuration, they form a barrier that separates the inside of the cell from the outside and that does not permit water-soluble or charged particles (like ions) from moving through it. So how do charged particles get into cells? We'll find out on the next page. Ion Channels ...
Regulation may create an economic barrier to entry. Rules can become outdated. Lawmakers are challenged to craft regulations that are specific enough to address the unique challenges of AI, yet flexible enough to remain relevant as the technology evolves. The bottom line With great power comes ...
If you connect a wire between the two terminals, the electrons will flow from the negative end to the positive end as fast as they can. This will quickly wear out the battery and can also be dangerous, particularly on larger batteries. To properly harness the electric charge produced by a...
Be sure to feed them their regular pet food and resist the temptation to give them some of your fast food burger or fries (that never has a good ending). Don't Leave Them Alone Never leave your pet unattended in a parked vehicle. On warm days, the temperature in your vehicle can ...
OK, so when a cell is in the RMP stage, sodium and potassium ions are both present on either side of the membrane. Cool beans. But — how do they cross the barrier? How does an ion enter or exit a cell? Well, that’s where ion channels come in. As the name implies, these ar...
MMAs sometimes offer check-writing privileges or ATM access, making them a convenient option for people who want fast and easy access to their funds. READ: Money Market Funds: What Are They and How Do They Work? Investing For the Long Term 401(k)s When saving for retirement, you won'...
Over time, we would naturally start using more renewables, but left to its own devices, this growth won’t happen nearly fast enough, and as we’ll see in chapter 4, without innovation it won’t be enough to get us all the way to zero. We have to force an unnaturally speedy transiti...