Here’s a little-known fact about airplanes. To land safely, they typically need to be lighter upon landing than they were during take-off. That’s easy enough to accomplish, since they burn hundreds of thousands of gallons of fuel during flights.
In emergency situations, however, it’s possible that a pilot will need to plan an urgent landing, at which point fuel jettisoning becomes a priority. Thousands of gallons will be discarded—yet we never hear of towns being deluged by a storm of airplane fuel. Here’s why.
When an airplane is high up in the atmosphere—typically at 5000 feet or above—discarded fuel will simply evaporate. Pilots who eject fuel use caution to make sure no aircraft is nearby to be caught in the fuel shower, and systems are in place to prevent them from draining all their fuel (as that would obviously create a different set of problems). Some planes have systems to spray fuel from nozzles located on the wings and can dump thousands of pounds of fuel per second.
Of course, just because liquid fuel doesn’t begin raining over a population doesn’t mean it disappears entirely. Some fuel will remain suspended in the atmosphere, and some of the vapor will wind up sinking to the ground. Picked up by wind, it might even wind up contributing to smog.
Dumping fuel is a rare event reserved for when pilots need to make a prompt landing owing to medical or maintenance issues but don’t want excess weight straining the aircraft. If there’s time, they can fly around to burn fuel, dropping the gear or flaps to help use more of it. But if discarding fuel is the only option, you can rest assured it won’t be staining your clothes.
[h/t HowStuffWorks]
Apple products are notoriously expensive, so whenever they come down in price, it's a big deal. And if you've had your eye on a pair of the Apple AirPods Pro, you can find them on Amazon for $219, which is 12 percent off the standard price.
Now that it looks like many people will continue to work from home through at least the end of the year, it might be time to invest in a pair of wireless headphones like these. If tuning out other noise so you can focus on your music, podcast, or Zoom call is what you need, then the AirPods's noise-canceling feature will do you wonders. However, if you need to make sure your kids (or pets) aren’t fighting while you’re on a call, Transparency mode lets outside noise in, so you can hear everything around you. The AirPods Pro also distinguish themselves from the other Apple AirPod models because they have customizable tips and are resistant to sweat and water.
Since these headphones are so light—weighing only 1.6 ounces, including the case—they're easy to take on a run, to the gym, or on the subway. The buds also pair with any device through Bluetooth and have more than 24 hours of battery life via the wireless charging case.
If you're in the market for a wearable, Amazon also knocked the price of the Apple Watch Series 3 down to just $169, which is 15 percent off. This Apple Watch model features a heart monitor and step tracker, and it can also store your music, podcasts, and audiobooks. Combine these two and you have the perfect gift for an upcoming birthday or a nice treat for yourself for the WFH lifestyle. Head here to see more about the AirPods Pro and here for the Apple Watch.
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Part of the pleasure of caring for a pet is trying to decipher their idiosyncratic behaviors. Dogs like to follow their owners everywhere due in part to having a pack mentality. They like to dig because they might be smelling something underground. But figuring out why dogs like to rest a paw on a person's leg or shoulder can be a puzzle. Some people believe it signals a dog’s dominance. Others think it’s a sign of affection. What’s the real reason?
Writing for TheDogClinic.com, accredited dog trainer Rebecca Forrest says dogs who put their mitts on humans generally want to communicate one of several things. The most obvious is that they want attention. This method of requesting your company is probably reinforced by past interactions: When dogs put a paw on someone, it’s usually seen as endearing and results in petting. The dog learns that the act will result in a belly rub, so they continue doing it.
But not all motivations for pawing are that clear. Many dogs like to paw at human company when they’re hungry or when they sense dinner is supposed to be served. The pawing is a reminder that it’s feeding time. (Naturally, owners shouldn’t react by offering a snack or food every time.)
A dog might also paw when they’re feeling stressed out. You can tell by checking to see if the dog’s ears are flat or if they’re smacking their lips, which are other signs of distress.
Dogs often paw for no reason other than wanting to bond with their owner. Touching releases oxytocin, the “feel good” hormone, just as it does in humans. While your dog may be looking for attention, is hungry, or feeling stressed, pawing can also be a sign it wants to reinforce your friendship.
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