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Old 07-28-2018, 02:24 PM   #2321 (permalink)
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I never heard mortar fire, but they did not fire mortars at Kandahar Air Field, they fired rockets. I never heard those, either, just random sirens and "Rocket attack. Rocket attack." Then you run into a bunker because there is a chance they will fire two in a row, but it seemed statistically pointless.

At first it was terrifying, but then it became a nuisance.

When I was in Germany the smoke alarms went off a couple of times a week. It might be someone burning something in the kitchen. Sometimes the firefighters did not find anything. The alarms in our room were crazy loud, but they were ear-piercing in the hallway. Then we ran outside and stood in the humidity and mosquitos, snow, rain, whatever, for half an hour or an hour.

I decided that if there ever actually was fire and it got through my fire door I could throw my mattress out the window and attempt to jump on it. So, I just put in ear plugs and continued what I was doing.

 
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Old 07-28-2018, 04:14 PM   #2322 (permalink)
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10"

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Originally Posted by oil pan 4 View Post
It's only 10 inches in 100 years, then why is everyone freaking out over this.
I remember after the movie water world in the 90s people though the sea levels would rise hundreds of feet as the polar ice caps melted by 2010.
I ran across a January 12-26,2017 Rolling Stone,with a Jeff Goodall article,'WILL WE MISS OUR LAST CHANCE?',with James Hansen.
Hansen was saying that we'd crossed the 400-ppmv carbon dioxide threshold in September,2016.
The last time Earth saw that high a concentration was in the Eemian Period,120,000 years ago.At that time,sea-level was 20-30 feet higher.So according to the numbers,we're already locked into 20-30 feet of rise.It's just a matter of the timing.Nobody knows the timeline.
We'll have to watch melting in land-borne ice of Greenland and W.Antarctica and the situation with the clathrate (methane) bomb in the Arctic.
NASA/JPL,or Harvard (sorry) has found that EPA is underestimating Methane emissions at oil and gas operations by 30-50%.Methane is 85-times stronger as a greenhouse gas than carbon dioxide.
Currently,Southern California Gas Co.'s Porter Ranch facility has the worst methane leak in US history.
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Old 07-28-2018, 04:33 PM   #2323 (permalink)
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Obama

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Originally Posted by oil pan 4 View Post
That was Obama administration thinking.
Don't worry about the terrorists, worry about pollution and sea level rise. Even though the air and water are cleaner then they have been in decades.
Luckily the grown-ups are back I charge.
We just lost more Americans in Puerto Rico than on 911.If this is a taste of climate change,then perhaps he made the right call.
34,000,000 Americans were being impacted by severe rain events and historic flooding in the East this morning.
89 major wildfires in 15-states.'explosive-growth' wildfire.Fire-nados.
Heat waves,heat domes,heat deaths.
Ozone action days.
Drought.
Savanna,Georgia got hit by a tornado that came out of nowhere.They couldn't even warn the residents.
Yosemite National Park had to be closed.
Wildfires in the Arctic Circle.
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Old 07-28-2018, 07:06 PM   #2324 (permalink)
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So what was the Obama administration doing to stop global warming?
As far as I can tell all they did was shut down some coal power plants early, confiscate a bunch of VWs, tried to stop fracking for natural gas which was the main reason coal was already in decline and block nuclear power plants during the first term, his second term appeared to quietly become pro nuclear, both nuclear weapons and power generation.

The wild fires may be a product of 60 to 70 years of modern forestry putting out small forest fires, interrupting the natural fire cycle. Allowing tree, plant and dead material density to build up way beyond natural levels.
So yes I believe that the wild fires are absolutely a direct result of man's actions in one or more ways.
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Old 07-28-2018, 08:48 PM   #2325 (permalink)
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As I have mentioned before:

Send streetsweepers through the forest!
 
Old 07-28-2018, 09:12 PM   #2326 (permalink)
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Quote:
Currently,Southern California Gas Co.'s Porter Ranch facility has the worst methane leak in US history.
https://en.wikipedia.org/wiki/Aliso_...leak#Aftermath

Currently,Southern California Gas Co.'s Porter Ranch facility has the record for worst methane leak in US history, surely.

Consider this Xist:

techxplore.com:Engineering students use sound waves to put out fires

Combine this with variable pitch props for super-low frequencies:

diytube.com:Rotary Subwoofer? Eminent Technology TRW-17

So you'd have a quadcopter the uses fluctuating blades instead of the subwoofer in the proof of concept. With a fleet of these you could do controlled burns.
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Old 07-28-2018, 10:56 PM   #2327 (permalink)
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So, you would use one of Venom's weaknesses against the other.

I always figure that if we could shade hot spots that would solve a number of problems. It is 120 in Phoenix? Here, have a hundred square miles of shade. Now it is 95. You are welcome.

Twenty-five degrees may not make much of a difference in a forest fire. Aren't those hundreds of degrees? Still, weather bunnies always talk about the heat hurting and cool weather helping.

The fire fighters would undoubtedly appreciate it.

I remember some report about the poor fire fighters dealing with freezing temperatures. Sure, working in the cold makes most jobs more difficult, but if your job is putting out fires, it is kind of much easier, too.
 
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Old 07-29-2018, 12:43 AM   #2328 (permalink)
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Quote:
...use one of Venom's weaknesses against the other.
Cultural reference?The idea is to use sound waves to blow out flames. And use the quadcopter rotor to generate the sound waves.

Quote:
Originally Posted by diytube
I've seen/heard this woofer in action, at a show. It was insane. They had to
have a whole floor of the hotel to themselves, since the bass was so immense.
Just absolutely clean, pants-flapping bass down to basically sub-audible levels.
The enclosure was fairly large (think large closet-sized), but could have been smaller.

The blades move the same way helicopter blades move, its' impressively
simple yet also complex enough that DIY'ing it would be challenging.

I talked at length with the designer about it, there were some tradeoffs
(fan speed vs. response, etc.) but all in all, it was an amazing item.
It imposes an additional waveform on the collective pitch.
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Old 07-29-2018, 02:43 AM   #2329 (permalink)
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Venom is a comic book villain\anti-hero\hero.
 
Old 07-29-2018, 04:38 AM   #2330 (permalink)
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Quote:
Here, have a hundred square miles of shade.
Can he do that?

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