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How to survive a grenade blast

radx says...

@CrushBug

Related story: during the later years of the war, when Allied air and sea supremacy made the Bay of Biscay a deathtrap, Allied torpedo boats took up ambush positions at the entrances to U-Boot bases, particularly La Rochelle. They'd get into position at night and stay just outside of range of the coastal defence batteries. Before outgoing submarines could reach deep water, they'd be plastered with hand grenades by these speed boats.

It wouldn't be able to sink a sub, but a lucky hit might damage the periscope and it did reduce the sub's sonar abilities by massive amounts, covering the entire exit area in a blanket of noise. Not to mention the psychological effect...

Anyway, just small bits of history.

Now, about this video: that small chance to be hit by a grenade chunk is surpassed by the rather noticable chance to be hit by one of roughly 6500 steel balls within a run-of-the-mill frag grenade used over here. Doesn't make the underwater experience any better though...

juggling and solving 3 rubicks cubes

Loud Neighbor Payback Device

newtboy says...

To whom?
To the neighbors on the other side, above, and below, this guy was inconsiderate first unless they could also hear his neighbors music.

I've certainly wanted to do something like this...I have a neighbor with a pack of up to 18 hunting hounds that bay constantly. I did consider making something exactly like this to blast barking dog noise back at them, but quickly realized that that would make ME the asshole to the rest of the neighborhood, so instead I went to the neighbors and together we called animal control until they were forced to act. He still has far too many dogs, but was forced to get rid of at least 1/2 of them and no longer runs a puppy mill in our neighborhood.
Of course, my hedge and other plants were mysteriously poisoned 3 days later.

He should simply call the building manager and tell them it's a problem, and if they don't solve the problem he won't be paying rent. The noise would stop pretty quickly rather than getting exponentially louder.

Daldain said:

Who was inconsiderate first?

George Lucas Explains Why He Had To Break Up With Star Wars

LukinStone says...

Wow...I'd seen all the headlines about this, purposefully avoided most Star Wars commentary as it seems pretty weakly considered and nearly always click-bait.

Seems like the "white slavers" comment wasn't anything as serious as the hype-mill spun it. It's almost a throwaway joke that you can tell doesn't really land. I think Lucas seems humble and wise in this clip.

A Knife For Cutting Through Metal

newtboy says...

Carbide (what I think the knife is made from) is tough stuff, and easily cuts through unhardened steel. That's why they make tools for steel milling and rock mining out of it.
I'm not sure why one would need a knife that tough, but good to know someone makes them. It's probably incredibly difficult to sharpen.
I want to see an entire katana made out of it. I wonder how well that would work, or if it might be too stiff.

Connie Britton's Hair Secret. It's not just for Women!

gorillaman says...

The suffragettes weren't feminists. If you want to honour the beginnings of the modern push for sex equality, then you owe your allegiance to such thinkers as John Locke, Jeremy Bentham and JS Mill - none of whom was a feminist. The entire first wave of feminism is a revisionist fiction.

This is on a par with the hideous christian impulse to annex and purloin all good behaviour into itself - "christian driver", "do the christian thing", "christian decency". So too, feminism appropriates every historical social advance in order to declare that, axiomatically, all female freedom ultimately derives from its doctrine, without which women would be slaves of the constantly threatening patriarchy.

In reality feminism is a phenomenon of the sixties - that's the nineteen sixties - with roots stretching back no more than a decade or two; which did a substantial amount of useful work in spite of its many aesthetic and ideological flaws, and which has now essentially petered out to be supplanted by, god help us, the advent of the filthy third wave and its hordes of ranting SJWs.

bareboards2 said:

The Suffragettes worked for more than the vote.

But you know better. I know you do.

Real Time - Dr. Michael Mann on Climate Change

Asmo says...

And your first paragraph pretty much spells out why solar PV is a dud investment for small plant/home plant if it were completely unsupported by a plethora of mechanisms designed to make it viable financially (and that's before even considering whether the energy cost is significantly offset by the energy produced), not to mention trying to make time to do things when your PV production is high so that you're not wasting it.

I try to load shift as much as possible, even went so far as to have most of the array facing the west where we'll scrape out some extra power when we're actually going to use it (eg. in the afternoon, particularly for running air conditioners in summer), but without feed in tariffs that are 1:1 with energy purchase prices and government subsidies on the installation of the system, the sums (at least in Australia) just do not ever come close to making sense.

But as I said in the first paragraph, that is all financial dickering, it has nothing to do with actual energy used vs energy generated. There is no free energy, you have to spend energy to make energy. You have to buil a PV array, pay for the wages of the people who install it, transport costs etc etc. They all drain energy out of the system. And most people in places where feed in tariffs are either on parity with the cost of purchasing energy when your PV isn't producing align their solar arrays with the ideal direction for greatest generation of energy that they can get the best profit for, not for generation of energy when energy demands spike.

The consequences of this are that at midday, energy is coursing in to the grid and unless your electricity provider has some capacity for extended storage and load shifting (eg. pumped hydro, large scale battery arrays), it's underutilised. Come peak time in the afternoon when people get home, switch on cooling/heating, start cooking etc when PV's production is very low, the electricity company still has to cycle up gas turbines to provide the extra power to get over that peak demand, and solar does little to offset that.

So carbon still get's pissed away every day, but as long as PV owners get a cheaper bill, it's all seen to be working like a charm... ; )

The energy current efficiency panels return is only on an order of 2-3x the energy input, which is barely enough energy returned to support a subsistence agrarian lifestyle (forget education, art, industrialisation). There's a reason that far better utilisation of coal and oil via steam heralded the massive breakthrough of industrialisation, it's because coal has close to a 30 to 1 return on energy invested. Same with petrochemicals, incredibly high return on energy.

The biggest advances in human civilisation came with the ability to harness energy more effectively, or finding new energy sources which gave high amounts of energy in return for the effort of obtaining them and utilising them. Fire, water (eg. mills etc), carbon sources, nuclear and so on. Even if you manage to get 95% efficiency on the panels for 100% of their lifetime (currently incredibly unlikely), you're only turning that number in to 8-12x the energy invested compared to 25-30x for coal/petro, 50x+ for hydro and 75-100+x for gen IV nuke reactors.

newtboy said:

Well, it seems the big problem there is that you buy electricity at 4.5 times the price of what you sell it for, and you seem to sell off almost all of what you make. That means you're wasting over 75% of what you generate, no wonder it seems like a bad deal. If you could find a way to use the power you generate instead of selling it and buying it back for 4.5 times as much, things would change I think. That could be as simple as starting your laundry and dishwasher as you leave in the morning rather than at night. Since I'm home all day, it wasn't a change for me to use most of our power during the day, which made it totally economical for me, even when I do my calculations based on power costs from 9 years ago, if I added in the rise in power rates here, my savings would seem even larger.

True enough about the batteries, but I only use them for backup power in outages, so they'll last a while as long as I keep them full of acid. By the time I need new ones, perhaps I can use a flywheel for storage instead. They're great, but expensive right now.

It depends on your point of view, hydro decimates river systems for about 15 years of power. Totally a worse deal than coal's significant part in global warming/climate change, in my eyes, and coal is terrible. A dam can kill a river in one season, coal takes quite a while to do it's damage. That said, coal does it's damage over a much larger area. Hard math to try to figure out, comparing the two. Here in the US, we're removing dams to try to save the last few fish species in many rivers.
Wave generation seems like it could be a promising method of power generation, you don't damage anything by capturing some wave energy. Too bad it's not seeing much advancement (that I know of).

Smashing a frozen river to save man's best friend

eric3579 says...

From The Daily What:

"The 21-year old man who saved the dog is a mill worker named Ivan. After the rescue, the dog ran away, but Ivan ran into him again at a store where he was buying some vodka. He then adopted the dog whom he named Rex."

Seems the dog was homeless.

Jurassic World - Official Super Bowl Spot

Stormsinger says...

Jurassic Park had fantastic effects and CGI, but the story was complete crap. This one looks much the same, except that the CGI is, well, rather run-of-the-mill at this point. I'll see it when I can do so for free.

Dog found with Pitbull head and Dachshund body

poolcleaner says...

Yeah, and now assholes are going to make a specific breed out of this. It'll he a thing and puppy mills will spit em out. It sure is screwed up.

rancor said:

If only we could shake the idea of dog breeds, non-inbred mutts like these would be more common!

Racism in the United States: By the Numbers

Barbar says...

Including the linked videos, I'm amazed that the topic of the evisceration of manufacturing didn't come up. That's largely what created the ghettos, and set the stage for what we see now.

Black folk were on the up, relatively speaking, and told to move to the cities to work in mills and plants. They did so, creating racially segregated neighborhoods in the process, and then that chunk of the economy all but disappeared.

There are certainly elements in the current culture that serve as a positive feedback loop, but I didn't see any argument that racism wasn't one of them in those videos.

The Wreck of the Edmund Fitzgerald

eric3579 says...

The legend lives on from the Chippewa on down
of the big lake they called "Gitche Gumee."
The lake, it is said, never gives up her dead
when the skies of November turn gloomy.
With a load of iron ore twenty-six thousand tons more
than the Edmund Fitzgerald weighed empty,
that good ship and true was a bone to be chewed
when the "Gales of November" came early.

The ship was the pride of the American side
coming back from some mill in Wisconsin.
As the big freighters go, it was bigger than most
with a crew and good captain well seasoned,
concluding some terms with a couple of steel firms
when they left fully loaded for Cleveland.
And later that night when the ship's bell rang,
could it be the north wind they'd been feelin'?

The wind in the wires made a tattle-tale sound
and a wave broke over the railing.
And ev'ry man knew, as the captain did too
'twas the witch of November come stealin'.
The dawn came late and the breakfast had to wait
when the Gales of November came slashin'.
When afternoon came it was freezin' rain
in the face of a hurricane west wind.

When suppertime came the old cook came on deck sayin'.
"Fellas, it's too rough t'feed ya."
At seven P.M. a main hatchway caved in; he said,
"Fellas, it's bin good t'know ya!"
The captain wired in he had water comin' in
and the good ship and crew was in peril.
And later that night when 'is lights went outta sight
came the wreck of the Edmund Fitzgerald.

Does any one know where the love of God goes
when the waves turn the minutes to hours?
The searchers all say they'd have made Whitefish Bay
if they'd put fifteen more miles behind 'er.
They might have split up or they might have capsized;
they may have broke deep and took water.
And all that remains is the faces and the names
of the wives and the sons and the daughters.

Lake Huron rolls, Superior sings
in the rooms of her ice-water mansion.
Old Michigan steams like a young man's dreams;
the islands and bays are for sportsmen.
And farther below Lake Ontario
takes in what Lake Erie can send her,
And the iron boats go as the mariners all know
with the Gales of November remembered.

In a musty old hall in Detroit they prayed,
in the "Maritime Sailors' Cathedral."
The church bell chimed 'til it rang twenty-nine times
for each man on the Edmund Fitzgerald.
The legend lives on from the Chippewa on down
of the big lake they call "Gitche Gumee."
"Superior," they said, "never gives up her dead
when the gales of November come early!"

Replacing with proper embed. Matched from previous thumbnail *backup=[...snipped...]

Triumphant first flight under FAA's new drone testing rules

newtboy says...

I'll second that.
I built a nearly identical plane 25 years ago, it cost about $125, and another $200 for the controller setup. It's wings were made of fiberglass/graphite spars inside dense foam cores...easy to build, easy to repair, and didn't hurt if it hit a person. (it did only have about a 15 min flight time without thermals, but batteries and motors are better now) Why are they going with carbon fiber for a non-combat fixed wing drone over fiberglass and/or foam (or are they testing combat drones)? Is it just to make it cost more? Why not just CNC mill them out of titanium billets? ;-)

$50K? Something smells here. Should be under $1K unless there's a lot we aren't seeing. Maybe it's all in the electronics and optics (it would need a bit more than a cell phone camera), but it still seems exorbitant. I think it could be more efficient to make them cheap and disposable/recyclable rather than 'hardened'.

Samaelsmith said:

"Less than $50,000 to make"? It's a radio controlled plane for fuck's sake!

the making of a Beretta shotgun

newtboy says...

I love the juxtaposition of the incredibly strict technical standards for the CNC milling and the beautiful hand carving of the stock and the engraving. Old school craftsmen and new fangled robots working together to create a thing of beauty and death. Nice.

best anarchist speech i have ever heard

enoch says...

@newtboy
i know man and got respect for your position.
have many friends who feel exactly the way you do.
so im not hating.

i have sacrificed much to hold fast to my conviction.
i deal mostly in cash or barter.
i do not and will never have a credit card,nor a bank account.
i drive "illegally" ,though it is rare,because i refuse to subscribe to mandatory insurance.or any form of insurance for that matter,mandatory or not.
i treat opiate addicts for free and give them a place to stay because the clinics (state run and corporate) have a zero tolerance policy.they pee dirty ONCE,for anything and they get booted.so i take them in.

this one,in particular,gets me into some serious trouble with the authorities at the local addiction a.k.a methadone pill-mill.they turn me in at least once a year.the baliffs at the courthouse know me by name.

i get in trouble at tax time because i dont file.my business is not income driven but rather "donation" driven.so...suck it county clerk!

i do work at a friends restaurant as a bartender/waiter and thats on the books,but thats mostly for my child support.

all this has been hard on my family,well,my boys mainly.while they were growing up i didnt have a lot of extra resources,but they turned out pretty damn good.

simply put(me?simple?ha!)
my faith dictates my politics.



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Beggar's Canyon