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Childbirth described with a balloon and ping pong ball

lucky760 says...

I watched closely as both of my sons were born and I can confirm this is exactly what happened; they launched out of my wife like ping pong balls... except with more hair.

newtboy (Member Profile)

siftbot says...

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Childbirth described with a balloon and ping pong ball

noims (Member Profile)

noims (Member Profile)

Childbirth described with a balloon and ping pong ball

Mordhaus (Member Profile)

4 Revolutionary Riddles Resolved!

newtboy says...

Calling him out on #1, he asked "what is this Object (in the cylinder)?". Honey and ping pong balls are not a single object.

Also the bicycle question, you need a rear sprocket about twice the size (or larger) of the front one to negate the wheel/crank ratio. Only custom bikes made for this question would have that gearing...so technically he's right but no one will have those results. (Edit:with the possible exception of Krusty, because his crank may be larger than his tiny wheel)

The Power of Friendship with Mask Off

The Whoosh Bottle

newtboy says...

I actually did this as my high school chemistry project. I used 70% rubbing alcohol, 90% rubbing alcohol, and pure ether (don't try that at home, kids). You can get a number of different effects, only some of which were seen here.

As I recall, there were 5 distinct effects I noticed.
First, and most exciting, the jet. This was just a 2-6 foot jet of flame out the top, I surmised it was caused by low oxygen inside the glass making for a poor partial burn inside until the pressure pushes out enough unburnt vapor to burn outside. Depending on the fuel (both vapor level and fuel type), this could last up to 10 seconds.
There's a 'neck burn', where the flame hovers just inside the neck and just burns there, apparently in equilibrium, like an oil lamp.
There's the fire ball, which is just as it sounds, a round ball of fire, usually hovering in the top 1/3 of the bottle, sometimes bouncing up and down, but always centered.
There's the flash, where the entire interior flashes repeatedly, as seen in this video. This can end much more violently than it did here, 'pinging' the bottle loudly as the flashes get more powerful. When this happened with ether, we stopped, afraid we were making a glass bomb surrounded by high school kids.
Finally was the fire plane, also seen in this video, which can ascend, descend, or hover in place. This was my favorite effect, especially when it hovered and lasted up to 30 seconds long.

Good times, good times....FIRE GOOD.

The Most Costly Joke in History

transmorpher says...

Dog fighting does not exist, and has not existed since WW1.

Even in WW2, planes attacked in passes. They start up high, fly down to pick up speed, attack and keep flying so that the enemy cannot catch them.

As that is happening, another pair of planes is already on it's way to make another pass.

Planes do not chase each other dodging around like X-wings and Tie Fighters. Because as soon as you do that their wingman shoots you down.

TopGun trains pilots in BFM and team work skills, not so much dog fighting. While one v one dog-fighting is part of learning good team work skills and becoming familiar with different scenarios, it isn't the focus.

In Vietnam, the missiles and radars were unreliable and missile had to be fired from a fairly close range. That hasn't been the case for some 30 years now, with missiles getting better all of the time with some insane ranges upwards of 80 miles. The plane is becoming more of a launch platform for missiles than anything else. That's why every fighter plane after the F-4 was designed that way primarily. The worlds best fighter is still the F-15 which has a massive radar and the best missiles. And less maneuverability than the F-16. Because they know dog fighting does not happen.



The scenario you mentioned where the planes are flying close together is not realistic - close in air to air combat is 100 miles.

Especially if the enemy plane has better maneuverability(which all Russian planes do already do anyway, apart from the F-16 if lightly loaded).
Pilots know very well the strengths of their planes, they would never put them in a position like that. They would be pinging each other to make their presence known (if a show of force was the desired effect) from over 100 miles away.


None of this makes the F-35 a good plane by any means. But I just don't agree with the reasoning in the comments here and in the media.

For example people keep mentioning the "Jack of all trades" issue. But they ignore the fact that ALL fighter planes built over the last 40 years have been turned into jack of all trades through necessity. Yet nobody criticizes them for it.

I mostly fly the same simulators as the US national guard does. So I'm hoping that it's accurate. But more than that I read a lot of books written by pilots about air to air and air to ground engagements. Which makes me more knowledgeable than 99.99% of the journalists reporting on the F-35. You'll notice that most aviation specific sites don't tend to bag out the F-35 because have a much better idea of how air combat works than the regular media sites.

EDIT: I was not aware they were ignoring failed tests. That's pretty worrying. Do you have more info on it I can read about?

Mordhaus said:

I've repeatedly discounted your comments, but I simply can't seem to make headway.

The F4E ICE was a modified German version of the F4E. It had much better engines than any other version of the craft, a dedicated WSO, and it still only barely outperformed the F16. The other F4 variants absolutely did not turn better or have a higher rate of climb than the F16.

Dogfighting hasn't been around since WW1? Are you crazy? What would you call the numerous dogfighting techniques developed during WWII? Admittedly there was a drop off in dogfighting during the Korean War, but that was because we were shifting to jets as our primary fighters and people didn't have the speeds worked out. When we went to Vietnam, we found that many times the planes were so fast they were closing into gun range before they could get a missile solution. Hence the creation of the Fighter Weapons School (aka TopGun).

The Air Force couldn't believe it was a skill issue and decided to go a different way, loading more sensors and different cannon onto the airplanes. They still relied on missiles primarily, assuming that dogfighting was DEAD. Well, after some time passed, Navy kill to loss ratios went from 3.7-1 to 13-1 and (SURPRISE) Air Force kill to loss ratios got even worse.

After this, the Air Force quietly created their own DACT program, unwilling to be vocal about how wrong they were. Now, if you primarily play video games about air sorties, you might get the idea that you get a lock a couple of miles before you even see the enemy, confirm the engagement, click a button, and then fly back home. Actual pilots will be glad to set you straight on that, since you might have to get close to the intruding craft and follow them, waiting. What happens when you get close? Dogfights happen.

As far as the capability of the plane, of course it is going to fail tests. But the problem is that, like in the case of the Marine's test, so much money has been invested in this plane that people are ignoring the failures because they are scared the program is going to get shut down. Realistically, that just is going to increase the time this plane takes to get ready for service, increase the costs, and it isn't going to fix the underlying problems in the design of the craft.

I don't know what else I can say. The plane is going to turn out to be a much more expensive version of the F22 and it will most likely quietly be cancelled later down the line like the F22 was. The bad thing is, the government will immediately jump to the next jack of all trades plane and once again we will find it is a master of none.

Science - Fire weapon under water - at your belly

Every 90s Commercial Ever (uncensored version)

Trump China

Retroboy says...

The world today seems absolutely crackers,
With nuclear bombs to blow us all sky high.
There's fools and idiots sitting on the trigger.
It's depressing and it's senseless, and that's why...
I like Chinese.
I like Chinese.
They only come up to your knees,
Yet they're always friendly, and they're ready to please.

I like Chinese.
I like Chinese.
There's nine hundred million of them in the world today.
You'd better learn to like them; that's what I say.

I like Chinese.
I like Chinese.
They come from a long way overseas,
But they're cute and they're cuddly, and they're ready to please.

I like Chinese food.
The waiters never are rude.
Think of the many things they've done to impress.
There's Maoism, Taoism, I Ching, and Chess.

So I like Chinese.
I like Chinese.
I like their tiny little trees,
Their Zen, their ping-pong, their yin, and yang-ese.

I like Chinese thought,
The wisdom that Confucious taught.
If Darwin is anything to shout about,
The Chinese will survive us all without any doubt.

So, I like Chinese.
I like Chinese.
They only come up to your knees,
Yet they're wise and they're witty, and they're ready to please

-- Eric Idle, from Monty Python's Flying Circus
Youtube so you can experience it in all its glory: https://www.youtube.com/watch?v=NH2P_pVze6s

Reservoir No. 2 - Shade Balls

nanrod says...

This idea has been around for a long time. Many years ago (many, many) I read about a proposal to cover all the resevoirs of the southwest with ping pong balls.



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