正在加载视频...

视频加载失败

加载此视频时出现问题。这可能是由于临时网络问题，或视频可能不可用。

Check out the structure of this supercell in a conditionally volatile environment for tornadic storms but in a tipping point state. A few degrees warmer at the surface, a tickle more surface convergence, or lift and would have had big problems

Reed Timmer, PhD

876,110 subscribers

49,147 次观看 • 2 个月前 •via X (Twitter)

Anya Rossi• Live Now

Private livecam show

0 条评论

暂无评论

原始帖子的评论将显示在这里

相关视频

Putting green? Nope!! Just the playing surface at Eastern Florida State!! Sunny, ocean breeze, and 75 degrees in December! Can’t wait to get the guys back on this field in a month! It’s more than just Juco!! #TitanUp⚔️ #JucoRoute #Fieldguy #Collegebaseball

Putting green? Nope!! Just the playing surface at Eastern Florida State!! Sunny, ocean breeze, and 75 degrees in December! Can’t wait to get the guys back on this field in a month! It’s more than just Juco!! #TitanUp⚔️ #JucoRoute #Fieldguy #Collegebaseball

Steven Brown

34,435 次观看 • 2 年前

Flame polishing is a method of polishing a material, usually glass or thermoplastics, by exposing it to a flame or heat.When the surface of the material briefly melts, surface tension smooths the surface.

Flame polishing is a method of polishing a material, usually glass or thermoplastics, by exposing it to a flame or heat.When the surface of the material briefly melts, surface tension smooths the surface.

Massimo

32,413 次观看 • 1 年前

More Batteries vs. Submarines Now that the German TKMS and the French Naval Group have massively adopted lithium-ion batteries, following the Japanese lead, this is consolidating as a major trend, just as I had predicted. The next stage will be solid-state batteries, and at that point, we'll essentially be discussing only speed and submerged endurance in comparison to nuclear submarines. Since solid-state batteries are lighter, they will allow for a greater number to be installed, freeing up space for more powerful propulsion systems. Naval Group has already sold a version of the Scorpène to Indonesia capable of remaining submerged for up to 80 days. That's with lithium-ion batteries. Imagine what this could exceed, more than double, with solid-state batteries. In practical terms, a more powerful engine combined with solid-state batteries in the proportions that Naval Group is now using in the Scorpène would provide three times the speed, meaning something like 10–15 knots at constant speed while maintaining around 50 days submerged. This would give a range of 40,000–50,000 km, requiring less than one hour on the surface for a fast recharge. For speeds above 25 knots, simply adding more batteries and a better engine would suffice, as the solid-state system has high power output. All this at 15–20% of the cost of a nuclear submarine. And if the choice is to power the batteries with a micro-reactor, it would cost 25–35% of a conventional nuclear one. Then someone will say: “But a nuclear sub can stay submerged for years.” That makes no difference at all, since even with around 60 days of endurance, the crew still needs to surface to resupply provisions. The big advantages remain: battery-powered subs are superior in silence, and speed can be addressed with larger battery packs.

More Batteries vs. Submarines Now that the German TKMS and the French Naval Group have massively adopted lithium-ion batteries, following the Japanese lead, this is consolidating as a major trend, just as I had predicted. The next stage will be solid-state batteries, and at that point, we'll essentially be discussing only speed and submerged endurance in comparison to nuclear submarines. Since solid-state batteries are lighter, they will allow for a greater number to be installed, freeing up space for more powerful propulsion systems. Naval Group has already sold a version of the Scorpène to Indonesia capable of remaining submerged for up to 80 days. That's with lithium-ion batteries. Imagine what this could exceed, more than double, with solid-state batteries. In practical terms, a more powerful engine combined with solid-state batteries in the proportions that Naval Group is now using in the Scorpène would provide three times the speed, meaning something like 10–15 knots at constant speed while maintaining around 50 days submerged. This would give a range of 40,000–50,000 km, requiring less than one hour on the surface for a fast recharge. For speeds above 25 knots, simply adding more batteries and a better engine would suffice, as the solid-state system has high power output. All this at 15–20% of the cost of a nuclear submarine. And if the choice is to power the batteries with a micro-reactor, it would cost 25–35% of a conventional nuclear one. Then someone will say: “But a nuclear sub can stay submerged for years.” That makes no difference at all, since even with around 60 days of endurance, the crew still needs to surface to resupply provisions. The big advantages remain: battery-powered subs are superior in silence, and speed can be addressed with larger battery packs.

Patricia Marins

103,224 次观看 • 7 个月前

“I love Europe — I love the people of Europe and they have to be very careful. They're at a tipping point. You have tremendous immigration problems, and you have tremendous energy problems, that’s a bad combination.” — President Trump

“I love Europe — I love the people of Europe and they have to be very careful. They're at a tipping point. You have tremendous immigration problems, and you have tremendous energy problems, that’s a bad combination.” — President Trump

Department of State

142,970 次观看 • 5 个月前

Cartographers always have to distort the surface of Earth in order to create a flat map. Notice how the same square on a map can have many different shapes and sizes in reality. Explore for yourself at

Cartographers always have to distort the surface of Earth in order to create a flat map. Notice how the same square on a map can have many different shapes and sizes in reality. Explore for yourself at

Mathigon

39,020 次观看 • 3 年前

Y'all see this swirl over the Mediterranean passing south of Benghazi? That's not a hurricane – it's a Medicane. Yes, that's a real term. The word is a portmanteau combining "Mediterranean" and "hurricane." The Mediterranean is too small to support barotropic (tropical cyclones) the scale of conventional hurricanes AND is too far north to support a truly tropical cyclone anyway. Moreover, water temperatures are too cool. (Most tropical cyclones exist over sea surface temperatures of 78 degrees or warmer; the current water temperature off the coast of Libya is about 63 degrees.) Medicanes can and occasionally do reach hurricane strength. The strongest on record was Medicane Ianos, which impacted Greece between September 17-18, 2020. It briefly became the equivalent of a tiny Category 2 hurricane with winds of 95 mph. On rare occasions, a nontropical low can meander over the Mediterranean, and a storm can form that takes on some tropical characteristics. Unlike nontropical cyclones, which are common at the mid-latitudes, medicanes feature a warm core. That requires warm sea surface temperatures. A 2016 study found that medicanes are likely to become significantly stronger by the end of the century in response to warming sea surface temperatures. Tthe researchers found a likelihood for "a higher number of moderate and violent medicanes.” Since 1980, Mediterranean sea surface temperatures have increased between 1 and 2 degrees.

Y'all see this swirl over the Mediterranean passing south of Benghazi? That's not a hurricane – it's a Medicane. Yes, that's a real term. The word is a portmanteau combining "Mediterranean" and "hurricane." The Mediterranean is too small to support barotropic (tropical cyclones) the scale of conventional hurricanes AND is too far north to support a truly tropical cyclone anyway. Moreover, water temperatures are too cool. (Most tropical cyclones exist over sea surface temperatures of 78 degrees or warmer; the current water temperature off the coast of Libya is about 63 degrees.) Medicanes can and occasionally do reach hurricane strength. The strongest on record was Medicane Ianos, which impacted Greece between September 17-18, 2020. It briefly became the equivalent of a tiny Category 2 hurricane with winds of 95 mph. On rare occasions, a nontropical low can meander over the Mediterranean, and a storm can form that takes on some tropical characteristics. Unlike nontropical cyclones, which are common at the mid-latitudes, medicanes feature a warm core. That requires warm sea surface temperatures. A 2016 study found that medicanes are likely to become significantly stronger by the end of the century in response to warming sea surface temperatures. Tthe researchers found a likelihood for "a higher number of moderate and violent medicanes.” Since 1980, Mediterranean sea surface temperatures have increased between 1 and 2 degrees.

MyRadar Weather

36,923 次观看 • 3 个月前

Tornado of the YEAR right now near Wellfleet, Nebraska on a cyclic tornadic supercell. This is unbelievable. More later!! #NeWx NWS North Platte

Tornado of the YEAR right now near Wellfleet, Nebraska on a cyclic tornadic supercell. This is unbelievable. More later!! #NeWx NWS North Platte

Connor

10,690 次观看 • 1 年前

Incredible view of inside #Melissa. Storms move counter clockwise in the northern hemisphere, so I had to ask Jim Cantore why this is spinning clockwise. His expert answer -- storms rotate 'counter' at the surface, and clockwise at the top as the flow evacuates the storm.

Incredible view of inside #Melissa. Storms move counter clockwise in the northern hemisphere, so I had to ask Jim Cantore why this is spinning clockwise. His expert answer -- storms rotate 'counter' at the surface, and clockwise at the top as the flow evacuates the storm.

Jordan Steele

97,781 次观看 • 8 个月前

Is there more snow in the forecast for Thursday or will it be a bit warmer? Find out in the 4cast 👇

Is there more snow in the forecast for Thursday or will it be a bit warmer? Find out in the 4cast 👇

Met Office

14,340 次观看 • 3 个月前

🚨 BREAKING: Scientists just discovered hidden structure in water Not deep inside it… but in the top 4 molecular layers at the surface. For decades, physics simplified water like this: → molecules point “up” or “down” → rough orientation picture → good enough Turns out… that was wrong. The new discovery Water at the surface doesn’t just tilt… it twists And that twist: • changes layer by layer • forms an ordered pattern across ~4 molecules deep • controls how water behaves at interfaces This region is insanely thin: ~8 angstroms (just 4 molecules thick) But it governs: • atmospheric chemistry • biology • ocean reactions • basically all surface interactions What they found: Instead of random structure… Water forms a layered, alternating twist pattern Like a molecular helix stack at the surface Why this matters: We’ve been modeling water wrong at interfaces And that affects: • climate models • chemical reactions • nanotech + materials • biological systems The deeper shift: Structure isn’t just position… it’s orientation + rotation This fits a bigger pattern showing up everywhere: Reality isn’t just particles… It’s geometry + alignment across layers Follow me I break down where even “simple” things like water stop being simple.

🚨 BREAKING: Scientists just discovered hidden structure in water Not deep inside it… but in the top 4 molecular layers at the surface. For decades, physics simplified water like this: → molecules point “up” or “down” → rough orientation picture → good enough Turns out… that was wrong. The new discovery Water at the surface doesn’t just tilt… it twists And that twist: • changes layer by layer • forms an ordered pattern across ~4 molecules deep • controls how water behaves at interfaces This region is insanely thin: ~8 angstroms (just 4 molecules thick) But it governs: • atmospheric chemistry • biology • ocean reactions • basically all surface interactions What they found: Instead of random structure… Water forms a layered, alternating twist pattern Like a molecular helix stack at the surface Why this matters: We’ve been modeling water wrong at interfaces And that affects: • climate models • chemical reactions • nanotech + materials • biological systems The deeper shift: Structure isn’t just position… it’s orientation + rotation This fits a bigger pattern showing up everywhere: Reality isn’t just particles… It’s geometry + alignment across layers Follow me I break down where even “simple” things like water stop being simple.

TheNewPhysics

13,047 次观看 • 2 个月前

During a Grand Solar Minimum and a geomagnetic excursion, Earth becomes the dangerous place. A weak magnetic field means unstable radiation belts, ionospheric chaos, satellite failure, GPS collapse, and increased cosmic radiation at the surface. The Moon doesn’t suffer from this chaos. It has no magnetosphere to collapse, no ionosphere to destabilize, and radiation in deep space is harsh but stable and predictable. With just a few meters of lunar regolith, underground bases on the Moon, especially on the far side, become better shielded, more reliable, and more survivable than Earth orbit or even Earth’s surface. That’s why the Moon isn’t a distraction. It’s the logical place to ride out what’s coming.

During a Grand Solar Minimum and a geomagnetic excursion, Earth becomes the dangerous place. A weak magnetic field means unstable radiation belts, ionospheric chaos, satellite failure, GPS collapse, and increased cosmic radiation at the surface. The Moon doesn’t suffer from this chaos. It has no magnetosphere to collapse, no ionosphere to destabilize, and radiation in deep space is harsh but stable and predictable. With just a few meters of lunar regolith, underground bases on the Moon, especially on the far side, become better shielded, more reliable, and more survivable than Earth orbit or even Earth’s surface. That’s why the Moon isn’t a distraction. It’s the logical place to ride out what’s coming.

Open Minded Approach

31,564 次观看 • 5 个月前

You can save the video but you can’t copy what the Leauge of Villians offer, this is just a scratch of the surface of what we have more to offer.

You can save the video but you can’t copy what the Leauge of Villians offer, this is just a scratch of the surface of what we have more to offer.

Leauge of Villians

19,560 次观看 • 6 天前

The Gooner Purge is but the surface of a system that has long spiralled out of our control

The Gooner Purge is but the surface of a system that has long spiralled out of our control

Severus

136,633 次观看 • 11 个月前

This is a small part of a bigger cinematic idea I have that I'll probably never have the time for.. but I would enjoy animating more pieces of it at some point! #Overwatch2

This is a small part of a bigger cinematic idea I have that I'll probably never have the time for.. but I would enjoy animating more pieces of it at some point! #Overwatch2

Jupit 🦝💙

377,917 次观看 • 1 年前

We had a few special assistants in the building this morning at FSU Football We are blessed to work in an organization and for Mike Norvell who promotes a family environment! Big thanks to Jaden Hamil and the crew for teaching my girls to make smoothies for the boys!🍢🍢🍢

We had a few special assistants in the building this morning at FSU Football We are blessed to work in an organization and for Mike Norvell who promotes a family environment! Big thanks to Jaden Hamil and the crew for teaching my girls to make smoothies for the boys!🍢🍢🍢

Gabriel Fertitta

34,673 次观看 • 2 年前