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Videos (34) | Sift Talk (1) | Blogs (11) | Comments (56) |
Videos (34) | Sift Talk (1) | Blogs (11) | Comments (56) |
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Ducted Fan Thrust Vectoring Drone
fun test of technology but I wonder what use this would solve better than a quad copter (or more) regarding stability in high winds and carrying load. maybe going into really tight spaces?
Squadron of Canadair CL-415 fighting fire in high winds
Intense.
Some of those drops were maybe 75-100 yards upwind of the target and still drifted past the fire. In America, I think they cancel fire planes in high winds like these.
That long shot of the fire closing in on the radio shack looked like a pyroclastic flow, not a wildfire. Scary stuff.
*quality
Colorado Blizzard Aftermath - Woodmen Road Dashcam Footage
In the case of this storm, 100's of people were still stranded in their cars the next day. People stuck in their vehicles after Colorado storms are often picked up by emergency vehicles, national guard, good samaritans, etc. Most people in Colorado also carry emergency supplies in their car in case they get stuck like this.
I don't even know what's going on here. It was a cyclone with really high winds but only like a foot of snow. Not really a blizzard. It looks like a lot of those cars drove off the road when there was zero visibility and then got stuck. The rest are probably stuck because sudden ice made the roads impassable.
That storm started with reasonably warm weather and rain, then a sudden (SUDDEN!) drop in temperature and high winds. I think below that thin layer of snow was undrivable ice.
So what happened to all the people who were in those cars? Seems like it is in the middle of nowhere.
Spacer Installation on 765,000 volt line
I believe its to keep the wires from hitting each other during high wind.
What's the point of the spacers?
Sonoma And Surrounding Counties Firestorm
Noon report....
Now at 170000 acres burned. 21 confirmed dead, over 500 missing, and averaging <3% contained across 22 fires, many at 0% in populated areas. Calistoga and surrounding areas are now being evacuated with high winds (35mph with 50 mph gusts) expected.
This is far from over.
Rome is burning....where's Nero?
SFOGuy (Member Profile)
Your video, Respect the lee shore and high winds, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
This achievement has earned you your "Pop Star" Level 39 Badge!
The Tech That Could Fix One of Wind Power's Biggest Problems
Why is this more auto governing for high wind conditions and yet effective at low wind speeds (and therefore avoidant of overspeeding or stressing the axle/mounting)? Because it's so much more compact? Lower forces over all?
And does the low wind/high wind envelope mean that someone has to be clever somewhere else? Like in forcing a transmission to gear up the speed at low wind speeds?
Sorry, not an engineer.
Ashenkase (Member Profile)
Your video, Onboard view of SpaceX Falcon 9 rocket landing in high winds, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
This achievement has earned you your "Pop Star" Level 4 Badge!
Creepy Footage of Forest Floor Breathing
This also happens up here in N. California with the giant redwoods. They can only be stable where their root systems can interlock with other large trees and help support each other, but in high winds you still get this kind of uplift as they sway.
Creepy Footage of Forest Floor Breathing
"The reason behind the phenomena isn’t very mystical. The movement is actually caused by root systems just barely underneath the soil. When a tree sways in high wind, it also moves the land around it."
“As I entered a patch of trees spared from clear cutting, I noticed the ground moving,” Brian Nuttall, who uploaded the video, wrote in a Facebook post. “I believe the larger trees are doomed to blow down but are currently spared, the smaller trees around them help hold each other up, as the wind pushes the trees into one another.”
http://www.outdoorhub.com/news/2015/11/11/video-creepy-video-forest-floor-breathing/
From what ive found on the internets, seems the woods had been clear cut up to these trees, and without their protection, the winds, wreak havoc, uplifting the root system which grew more shallow, as (i assume)they never had to anchor themselves any deeper. Anyway thats what i took from the few things i could find on this video. Would love to hear anything else others might know about this.
Sometimes the job doesn't seem worth the pay
This video has been seconded as a duplicate; transferring votes to the original video and killing this dupe - dupeof seconded with isdupe by blackfox42.
Sometimes the job doesn't seem worth the pay
*dupeof=http://videosift.com/video/High-Winds-In-Shanghi-Give-Window-Washers-Quite-A-Ride
Sometimes the job doesn't seem worth the pay
This video has been nominated as a duplicate of this video by eric3579. If this nomination is seconded with *isdupe, the video will be killed and its votes transferred to the original.
Sometimes the job doesn't seem worth the pay
*dupeof=http://videosift.com/video/High-Winds-In-Shanghi-Give-Window-Washers-Quite-A-Ride
Sometimes the job doesn't seem worth the pay
Invocations (dupeof=http://videosift.com/video/High-Winds-In-Shanghi-Give-Window-Washers-Quite-A-Ride) cannot be called by mxxcon because mxxcon is not privileged - sorry.