My BMWs “gas-side” is indicated by which side the hose is on the little gas icon. The Jeep has the arrow; could be a foreign/domestic difference?
I know otherwise intelligent people who had to be told that Daylight Saving Time does not actually add an extra hour of sunlight each day for half the year.
And turning the thermostat to 20 degrees hotter than you really want it will not make the room warm up any faster.
I’m glad you put “Dark Side” in quotes. A lot of people seem to think the so-called dark side of the moon is in constant darkness. It’s better called the far side of the moon. It’s illuminated by the sun just about half the time, the same as the near side. It is a little darker because it gets no reflected light from the earth.
And antibiotics do not cure the common cold.
True, but a Yale study last year showed that the cold virus spreads more effectively when it’s cold. It’s not a refutation of medical science, but still a big victory for empiricists. That is, when my mom told me to wear a jacket or I’d catch a cold, she was actually right. On the other hand, I’m not blind, so she wasn’t right about everything!
This is a lot safer than having a big rig, semi tractor trailer using the traditional hydraulic brake system used in cars. The fluid is used to press the pads against the drum or disc when the brakes are applied in a hydraulic system.
If you have a brake line failure in a car and lose fluid you can probably slow down and stop with a combination of gearing down and using the hand/emergency brake. That is not going to work in a 80,000 lb truck rolling down the freeway.
So when a air line goes out and the truck loses air pressure all the brakes engage. There is no air pressure to keep the pads away from the drums and everything comes to a screeching stop. You have probably seen long skid marks on the highway from trucks. Not all, but some of those are from an air brake line failure.
When you first start up a truck with air brakes you cannot even move it until the air pressure builds up enough to force the brake pads off the drums. It won’t move at all. This is another of those faulty movie tropes, a guy hops in and starts a truck and he drives off, nope, nope, not until the air pressure releases the brakes.
Not that, either! My daughter’s 2003 Honda CRV has the pump icon with the hose on the right, no arrow. The filler cap is on the left. My 1985 Mazda has the icon with the hose on the left, no arrow, filler cap on the left. My 2005 & 2006 Hyundai SUV’s have the arrow pointing to the correct side. I think it’s just model specific.
I was under the impression that there is a compressed-air storage tank somewhere on the tractor, so that the compressor doesn’t have to run full-time. Wouldn’t such a tank have an ample supply of compressed air stored up at the time the engine is shut off, and therefore available at the next restart?
and if there isn’t a storage tank, wouldn’t the compressor fill up the tiny volume of the air lines pretty quickly once it starts pumping?
To go along with this one, most people seem to think that the trick for the Space Shuttle or any astronauts/satellites, etc… to get into orbit is merely getting high enough, and that the rockets take off upward and head more or less straight up.
In reality, the trick is to get going fast enough to where you literally fall *around *the Earth, rather than down onto it. Which means you have to get going FAST, rather than strictly high up.
We had a thread awhile back from a Doper - I do not remember who, but he or she was a prolific poster and did not otherwise seem like a drooling idiot - who did not know why the moon changes phase. You know, why sometimes it’s a full moon, quarter moon, etc.
I made a point of trying to see if other people were similarly ignorant, and was amazed to find many are.
xkcd:
Guy: I used to think correlation implied causation. Then I took a statistics course. Now I don’t.
Gal: Sounds like the class helped.
Guy: Well, maybe.
Maybe that’s what HI’s cellmate was talking about in Raising Arizona.
That PSSHHHHHH you hear when a tractor-trailer parks is the reservoir being emptied so the parking brakes set.
I was working in a trailer manufacturing plant doing air line assembly (brakes and bags) when they were just switching from ‘need air pressure to keep on’-type brakes to the ‘need air pressure to keep off’-type brakes.
re. Brakes.
See: Westinghouse, George
Invented the modern air brake - for trains.
I don’t think I’ve ever seen a BMW with the filler on the wrong side (left).
And Mr. Otis invented the “Safety Elevator” - the one that doesn’t crash if the cable breaks (or even if all 6 or so break).
One of my high school science teachers didn’t get it, either. He refused to believe it until we actually demonstrated it to him with a student walking in circles around him, rotating for one loop and not rotating for the next.
And even so, lots of people have heard of the concept, but when it comes to applying it they really suck at recognizing that they are making this error.
Sleet has at least two definitions and it is regional. It can mean either frozen rain or Dippin’ Dots. Wikipedia says that one definition is US and one isn’t but that isn’t strictly true. I’ve encountered both terms in the US.
You’re probably responding to the above post, but it could just as easily be a response to the OP: it’s an obvious fact but millions of people think that the MD makes him credible.
On the other hand, maybe he’s a genius. I’m sure his wallet isn’t suffering.
Most of the traffic lights around here use cameras to detect cars, not magnetic fields. Are you sure yours use magnetic fields?
EVERY female is un-neutered.
By me both are used. Wires embedded in the pavement are used to create the magnetic fields, they are called detector loops. Typically we put several of them at different positions to detect vehicles. One directly behind the 12" wide white line (called the stop bar) and unfortunately we often have to put one past the stop bar because folks aren’t very good at stopping where they are supposed to. There is often one or more at a set distance back; this is to detect if a long line of cars are queuing and it can initiatie a different signal timing.
Since wires in the pavement break and cars use less ferrous metals, among other reasons, cameras are being used more frequently for detection.