Using tree rings (and an underwater chainsaw) to understand earthquake risk
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- čas přidán 22. 10. 2021
- Dozens of earthquake faults crisscross the Pacific Northwest, many right under our feet.
Yet there’s still a lot we don’t know about these faults.
Now, scientists are looking to 1000-year-old underwater trees to understand our seismic past.
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The underwater chainsaw sounds like an old man laughing and coughing at the same time. It is such a cool tool.
I shed a tear for that bar and chain going through dirt and sand like that.
@Wayne Flanigan If you've used one in dirt, you'd know it can dull in seconds. Yeah, you can re-sharpen them, but it's a pain.
Incredible. An Oregon underwater chainsaw is incredible also! Thanks Field Guide!
I don't mean to get political--really!--but all I could think of is of people who yap about "academic elitists" or words to that effect as if there's never any mud, shit, frost bite, fishy smells, hunger, snake bites, etc. involved with pure scientific advancement. These people are my heros! Hard, hard work and sheer commitment is behind all the breakthroughs in the collective knowledge the human race has achieved and what this bunch of mud sloggers will ascertain will undoubtedly save lives. I live in this region and when we next have an earthquake that really gets my attention I will immediately conjure an image of our intrepid PhD candidate sinking up to her hips in goo, shouting, "Cannonball!" Indefatigueable! Excelcior!
As a researcher of Cataclysms past and near future I'd like to stay updated with her research As much as possible! 🧐
Would be nice to have a follow up with the findings. This video was one big tease.
My grandpa has been studying the underwater forest near Lake Tahoe for a couple of decades, it's fascinating! I've gotten to pilot a lot of his submersible drone missions, its a whole other world down there :)
very purposeful research with important implications, although I can’t help but think it’s kind of a shame that the ancient trees have to be altered so permanently. it feels a little like desecrating a tombstone!
no that's dumb, otherwise they would become dirt or entombed forever & no one would know, plus there's plenty more where they came from
gotta go through chainsaw blades pretty quick, lol
much respect to guy chain sawing in water, i'm a diver, carpenter, have worked underwater on docks, I grasp how much more difficult, what he did is, than doing on dry land...that boy put in some hard work, earned his beers that night.
Fascinating! How enlightening & fun! I now want to be a tree ring scientist!
Fascinating.
So what did they find? When did the quake happen?
Before today.
@@dolphincliffs8864 lol
@@KathleenMcCormickLCSWMPH Thanks!
Gotta keep the mood light!
@@dolphincliffs8864 yes, we must!
I’m the past.
Seems like there is a need for an electric Minkota chainsaw!!
Fun to make educated guesses. Too bad we can never know for sure unless we have more than just tree rings.
How does wood tell you about earthquakes? also I'd recommend starting the chainsaw once you're at what you want to cut because if you fall (very high chance to) pull the throttle by accident and sink your other hand, that's you severely injured.
Those sunken logs would make amazing wood carving and furniture
I thought i recognized that voice, Jessie was on the podcast curiology!
Dutchsinse can predict earthquakes. Look at his CZcams channel. He is pretty good at you and will show you how he does it. His calls are spot on.
Jason's scuba diving cousin?
When talking about this earthquake approximately 9,000 years ago is that in reference to the Younger Dryas? If so, y’all need to look in to the meteoric activity at that time. There’s considerable evidence that there was a period of intense bombardment in North America at the beginning of the YD ~12,000 years ago that caused sudden global cooling and mass death of megafauna globally. Then 9,000 years ago the earth reentered the path of the fragments of meteorites which impacted the now ice covered North America causing I gigantic flood of the type you’re talking about having killed these trees.
Hydraulic Powered saw use them on skids site at mills ,,
6:23 newt!
Wouldn't it be easier to use tools without power? A long wire saw operated by people standing on land or on a boat tied to another stump. It seems like you might benefit from a more practical mind on the team? Let me have a crack at it.
You know nothing. It sucks cutting by hand.
No.
Just no.
I hope you are using vegetable oil in that saw, BIG fine if not.
Earth quake not only depend on earths magnetic field but also effects of jupiters and sun magnetic field when erath magnetic field weak
Scientist wearing masks outside with no one else around, how are we suppose to take this person seriously?
probably university rules or something dumb like that.
Maybe they are adhering to rules. Maybe they need to be extra careful. Maybe they have a pollen allergy. Maybe they don't want to get splashed in the face with muck. We don't know. What we do know is that you are judgemental prick who doesn't even know how to spell.
Masks on outside 🤦