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。

It’s wild that the whole Shuttle-on-747 piggyback concept was first validated using a simple $40 balsa-wood RC model in the 1970s. NASA engineer John Kiker literally flew a homemade model in a park to prove the separation dynamics would work when everyone else was skeptical.

Aviation

932,312 subscribers

173,171 次观看 • 5 个月前 •via X (Twitter)

教育科学技术

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

When I worked at a hedge fund, we would spend 100+ hours building complex valuation models. I always felt that was overrated and would build a simple crayon math model on the side. Excited to share TIKR's new Valuation Model Builder. Create a model in less than 60 seconds!

When I worked at a hedge fund, we would spend 100+ hours building complex valuation models. I always felt that was overrated and would build a simple crayon math model on the side. Excited to share TIKR's new Valuation Model Builder. Create a model in less than 60 seconds!

Sahil Khetpal

189,126 次观看 • 1 年前

In order to test the space shuttle Enterprise's landing capabilities, it was carried to 24,000 feet atop a modified 747, and blasted off using explosive charges.

In order to test the space shuttle Enterprise's landing capabilities, it was carried to 24,000 feet atop a modified 747, and blasted off using explosive charges.

Historic Vids

4,669,570 次观看 • 2 年前

I cant believe I rigged all this just to end up using a Tshirt version of this model the whole year. I think I learned a very important lesson on overcomplicating designs, and I hope it will show in the new October model where the goal was to make something simple and effective

I cant believe I rigged all this just to end up using a Tshirt version of this model the whole year. I think I learned a very important lesson on overcomplicating designs, and I hope it will show in the new October model where the goal was to make something simple and effective

Pipi Slayer🦇💀

123,300 次观看 • 11 个月前

A review of the development work done in 2025. The most complex was the Short Scylla, with the Wessex being used to try out the metal work in advance. The SPAD 33 was the first model - liveries were difficult to pin down.

A review of the development work done in 2025. The most complex was the Short Scylla, with the Wessex being used to try out the metal work in advance. The SPAD 33 was the first model - liveries were difficult to pin down.

Archive Sketcher

10,683 次观看 • 7 个月前

In which Dr. Wood claims his first role model as a Christian was a man who committed felonies and was never caught, and then became a Christian and was convicted to turn himself in. Can’t wait to get to the part where David Wood turns himself in for his crimes of rape.

In which Dr. Wood claims his first role model as a Christian was a man who committed felonies and was never caught, and then became a Christian and was convicted to turn himself in. Can’t wait to get to the part where David Wood turns himself in for his crimes of rape.

Lauren

39,461 次观看 • 8 个月前

Tesla shared a video commemorating the legacy of the Model S/X. ❤️ • 750,000+ Model S and Model X vehicles sold • First vehicles with FSD Hardware • First vehicles with console-level gaming • Model S was the first EV to surpass 400 miles of range • Model S was the first production car to do 0-60 mph in less than 2 seconds and break a 9.3s quarter mile time • Model S was the first EV to win Motortrend’s car of the year award • Model X was the Quickest Production SUV ever • Model X was the FIRST SUV to not roll over in safety testing Together, Model S and Model X avoided 20M metric tons of COe over the last 14 years. Legendary cars!

Tesla shared a video commemorating the legacy of the Model S/X. ❤️ • 750,000+ Model S and Model X vehicles sold • First vehicles with FSD Hardware • First vehicles with console-level gaming • Model S was the first EV to surpass 400 miles of range • Model S was the first production car to do 0-60 mph in less than 2 seconds and break a 9.3s quarter mile time • Model S was the first EV to win Motortrend’s car of the year award • Model X was the Quickest Production SUV ever • Model X was the FIRST SUV to not roll over in safety testing Together, Model S and Model X avoided 20M metric tons of COe over the last 14 years. Legendary cars!

Nic Cruz Patane

12,698 次观看 • 3 个月前

Bold decisions shape bold brands. Investing over $100M in a young concept wasn’t just capital, it was conviction. When the model is simple, operations are efficient, and the experience is unforgettable, the risk turns into a calculated step toward growth.

Bold decisions shape bold brands. Investing over $100M in a young concept wasn’t just capital, it was conviction. When the model is simple, operations are efficient, and the experience is unforgettable, the risk turns into a calculated step toward growth.

Tanweer Ahmed

125,967 次观看 • 9 个月前

🌻： It’s so difficult to get Apasiri, she was my teacher when I became a model . Faye was so happy to get Apasiri to join the BOL series. She will tell the whole story in the final episode. THE HIDDEN TRUTH #BrokenOfLoveEP6

🌻： It’s so difficult to get Apasiri, she was my teacher when I became a model . Faye was so happy to get Apasiri to join the BOL series. She will tell the whole story in the final episode. THE HIDDEN TRUTH #BrokenOfLoveEP6

fei

37,421 次观看 • 3 个月前

Meet VLA-JEPA, the first world model policy in LeRobot 🌍 Most VLAs just learn observation → action. VLA-JEPA also learns action-relevant dynamics: during training, a JEPA world model has to predict upcoming frames in latent space from the model's own actions. Then, at inference, the world model disappears entirely, leaving a standard, fast VLA: Qwen backbone, action head, nothing extra. In our demo it was fine-tuned on just 13 examples and ran in real time on an NVIDIA DGX Spark. On a consumer RTX 3080, it hits 10Hz using under 6GB of VRAM. World-model supervision during training, zero extra cost at inference. That's the whole trick.

Meet VLA-JEPA, the first world model policy in LeRobot 🌍 Most VLAs just learn observation → action. VLA-JEPA also learns action-relevant dynamics: during training, a JEPA world model has to predict upcoming frames in latent space from the model's own actions. Then, at inference, the world model disappears entirely, leaving a standard, fast VLA: Qwen backbone, action head, nothing extra. In our demo it was fine-tuned on just 13 examples and ran in real time on an NVIDIA DGX Spark. On a consumer RTX 3080, it hits 10Hz using under 6GB of VRAM. World-model supervision during training, zero extra cost at inference. That's the whole trick.

LeRobot

42,389 次观看 • 1 个月前

A family celebrating Lohri in a village near Amritsar had a narrow escape when a sudden blast occurred in the fire. Luckily, everyone was saved. The person sitting next to the fire explained that the blast happened due to heat pressure because they had directly fired the wood on the cemented floor without using any sand. #Punjab #Amritsar

A family celebrating Lohri in a village near Amritsar had a narrow escape when a sudden blast occurred in the fire. Luckily, everyone was saved. The person sitting next to the fire explained that the blast happened due to heat pressure because they had directly fired the wood on the cemented floor without using any sand. #Punjab #Amritsar

Gagandeep Singh

802,148 次观看 • 2 年前

The way Selena Gomez & Demi Lovato literally invented blogging & vlogging back in the day. They were the first ones who pioneered that sphere creating cute & funny content when no one else was. They used a simple camera but they did it iconically & now vlogging is a whole industry.

The way Selena Gomez & Demi Lovato literally invented blogging & vlogging back in the day. They were the first ones who pioneered that sphere creating cute & funny content when no one else was. They used a simple camera but they did it iconically & now vlogging is a whole industry.

Wasa Miroshnichenko (Fan account)

25,297 次观看 • 3 个月前

Introducing WildDet3D, a grounding model for monocular 3D object detection in the wild. A question I keep coming back to is: what is the right backbone for robotics foundation models? Should it be a video model, a language model, or perhaps a grounding model? WildDet3D is our first step in exploring that direction.

Introducing WildDet3D, a grounding model for monocular 3D object detection in the wild. A question I keep coming back to is: what is the right backbone for robotics foundation models? Should it be a video model, a language model, or perhaps a grounding model? WildDet3D is our first step in exploring that direction.

Jiafei Duan

12,137 次观看 • 4 个月前

Here is a blockout model that I was super happy to make for an enemy NPC in Wayfinder Concept art by the amazing Baldi Konijn 🍉

Here is a blockout model that I was super happy to make for an enemy NPC in Wayfinder Concept art by the amazing Baldi Konijn 🍉

David Bolton

25,901 次观看 • 2 年前

Distinguished Columbia Univ. Prof. Jeff Sachs on Pres. Trump's FAILURE in Iran: “The whole war was based on some failed plan or delusion that a decapitation strike would immediately create a pliant government in Iran. When that failed, the failure of the whole war was exposed.”

Distinguished Columbia Univ. Prof. Jeff Sachs on Pres. Trump's FAILURE in Iran: “The whole war was based on some failed plan or delusion that a decapitation strike would immediately create a pliant government in Iran. When that failed, the failure of the whole war was exposed.”

Steve Hanke

23,973 次观看 • 3 个月前

When Chelsea spend around £300m in a window, you’d assume that they’d be in a stronger position. Chelsea’s model and everything it stands for is going the wrong way. BlueCo think they’re smarter than everyone else. History and track records prove otherwise. - #CFC #EPL

When Chelsea spend around £300m in a window, you’d assume that they’d be in a stronger position. Chelsea’s model and everything it stands for is going the wrong way. BlueCo think they’re smarter than everyone else. History and track records prove otherwise. - #CFC #EPL

Louis Beneventi 🤌🏻

44,754 次观看 • 7 个月前

Lucid’s engineering is on a whole other level — the Gravity is a seven seater family EV that does McLaren numbers and shames Tesla $TSLA in luxury touches (Lucid was founded by Tesla Model S chief engineer) $LCID reports earnings next week.

Lucid’s engineering is on a whole other level — the Gravity is a seven seater family EV that does McLaren numbers and shames Tesla $TSLA in luxury touches (Lucid was founded by Tesla Model S chief engineer) $LCID reports earnings next week.

Facts Chaser 🌎 🤦🏻‍♂️

46,317 次观看 • 1 年前

Pre-Covid Islamabad was something else. Mahira, Shahid and Naimal would shoot a whole song in the middle of F9 park with not a soul around. What fucking days. Now it’s just too freaking crowded.

Pre-Covid Islamabad was something else. Mahira, Shahid and Naimal would shoot a whole song in the middle of F9 park with not a soul around. What fucking days. Now it’s just too freaking crowded.

IB

21,531 次观看 • 3 个月前

Jensen Huang was asked whether AI's future is open source or proprietary the question the whole industry keeps fighting over. He didn't pick a side. He said something that quietly ends the fight. "models is a technology, not a product. Model is a technology, not a service" "For the vast majority of consumers, the horizontal layer, the general intelligence, I would really, really love not to go fine-tune my own" "all these industries, their domain expertise, their specialization has to be channeled, has to be captured in a way that they can control, and that it can only come from open models" "the open model industry we're contributing tremendously to it is near the frontier" Everyone else is arguing about which lab wins OpenAI or Anthropic, who has the smartest frontier model this quarter. Jensen is standing on stage saying that's the sideshow. The proprietary model is the convenience layer you rent when you don't care. The open model is the thing you own when the work is yours. Two different products for two different needs not two horses in one race. open models are the second-biggest in the room. Ahead of Anthropic. Behind only OpenAI.

Jensen Huang was asked whether AI's future is open source or proprietary the question the whole industry keeps fighting over. He didn't pick a side. He said something that quietly ends the fight. "models is a technology, not a product. Model is a technology, not a service" "For the vast majority of consumers, the horizontal layer, the general intelligence, I would really, really love not to go fine-tune my own" "all these industries, their domain expertise, their specialization has to be channeled, has to be captured in a way that they can control, and that it can only come from open models" "the open model industry we're contributing tremendously to it is near the frontier" Everyone else is arguing about which lab wins OpenAI or Anthropic, who has the smartest frontier model this quarter. Jensen is standing on stage saying that's the sideshow. The proprietary model is the convenience layer you rent when you don't care. The open model is the thing you own when the work is yours. Two different products for two different needs not two horses in one race. open models are the second-biggest in the room. Ahead of Anthropic. Behind only OpenAI.

Vikram M

12,078 次观看 • 1 个月前