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Category: engineering – Page 127

Tesla’s NEW Giga Press Is a BIG Game Changer Tesla and big things are inseparable. Be it ambition, idea, or more tangible items, Tesla would rather go big. Perhaps that is due to the many successes the company has racked up in the short time it has existed or just the personality of the CEO, Elon Musk. Whatever the case, Tesla tends to come along and fundamentally change how things are done, just like with its Giga Press. What is a Giga Press and how does it work? Why is it a game changer in the auto making business? Welcome to Tech Archives.

What is a Giga Press?

They are giant machines made by IDRA Group based out in Italy. The name was actually coined by IDRA, not Tesla. Their purpose is die casting large parts in a single piece. If you have a head for figures, Giga Presses produce a clamping forces of between 55000 kilonewtons and 61000 kilonewtons. Giga Presses are the biggest casting machines to ever exist. To get a sense of how massive these machines are, they weigh 410 to 430 tonnes. That is the equivalent of five Space Shuttles. They are the sizes of houses, at 20 meters by 7.5 meters by 6 meters and require dozens of flatbed trucks for transportation. And to get a sense of what a Giga Press does, think of a small plastic toy car. You would notice the chassis is made from a single piece. That is what a Tesla Giga Press tries to achieve. Instead of a chassis that uses up to 70 bolted and welded parts as it is done by all other car makers, the new Tesla chassis will be one solid piece of engineering feat. Tesla’s NEW Giga Press Is a BIGI Game Changer Buckle up because on this channel we will go through all things Tesla, ev, and Elon Musk. Stay tuned for the latest Tesla news and Tesla updates. Click here to subscribe: https://bit.ly/3fjwstS

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Using an ultrafast transmission electron microscope, researchers from the Technion – Israel Institute of Technology have, for the first time, recorded the propagation of combined sound and light waves in atomically thin materials.

The experiments were performed in the Robert and Ruth Magid Electron Beam Quantum Dynamics Laboratory headed by Professor Ido Kaminer, of the Andrew and Erna Viterbi Faculty of Electrical & Computer Engineering and the Solid State Institute.

Single-layer materials, alternatively known as 2D materials, are in themselves novel materials, solids consisting of a single layer of atoms. Graphene, the first 2D material discovered, was isolated for the first time in 2004, an achievement that garnered the 2010 Nobel Prize. Now, for the first time, Technion scientists show how pulses of light move inside these materials. Their findings, “Spatiotemporal Imaging of 2D Polariton Wavepacket Dynamics Using Free Electrons,” were published in Science following great interest by many scientists.

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“It was so easy to get support from Northeastern, especially considering that we were fresh out of college,” Gurijala says. Through the Venture Mentoring Network, the co-founders were advised on how to create a business model and pitch investors. “They even connected us to our first investor. I’m not sure we could have started Boston Materials without the support of the whole entrepreneurial ecosystem at Northeastern.”

Boston Materials, which recently raised $8 million from investors, is looking to expand its team.

“We’re looking to grow across the company, from the manufacturing team, to the engineering team, to the technical sales team,” Gurijala says. “It’s an exciting time. There’s so much momentum behind us right now.”

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Using an ultrafast transmission electron microscope, researchers from the Technion—Israel Institute of Technology have, for the first time, recorded the propagation of combined sound and light waves in atomically thin materials.

The experiments were performed in the Robert and Ruth Magid Electron Beam Quantum Dynamics Laboratory headed by Professor Ido Kaminer, of the Andrew and Erna Viterbi Faculty of Electrical & Computer Engineering and the Solid State Institute.

Single-layer materials, alternatively known as 2D materials, are in themselves novel materials, solids consisting of a single layer of atoms. Graphene, the first 2D material discovered, was isolated for the first time in 2004, an achievement that garnered the 2010 Nobel Prize. Now, for the first time, Technion scientists show how pulses of light move inside these materials. Their findings, “Spatiotemporal Imaging of 2D Polariton Wavepacket Dynamics Using Free Electrons,” were published in Science.

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About five years ago, Areg Danagoulian, associate professor in the MIT Department of Nuclear Science and Engineering (NSE), became intrigued by a technique developed by researchers at Los Alamos National Laboratory that uses a neutron beam to identify unknown materials.

“They could look into a black box containing uranium and say what kind and how much,” says Danagoulian, who directs MIT’s Laboratory of Applied Nuclear Physics (LANPh). “I was thinking about the problem of verifying in warheads, and it just dawned on me, this amazing technology could be applied to what we’re working on.”

But there was a problem: This method, called resonance transmission analysis (NRTA), requires an enormous, expensive apparatus, limiting its utility for the kind of on-site nuclear material applications Danagoulian and his research colleagues focus on. To leapfrog this obstacle, they determined to make NRTA technology portable.

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As part of his Master’s degree in civil engineering, an EPFL (Ecole Polytechnique Federale de Lausanne) student developed a connector for use in building sustainable structures. His initial project has expanded into an online program for designing bamboo furniture that’s stylish, modular and customizable. And now his connector is being looked at for use by astronauts in outer space.

During his time at EPFL under the Erasmus program, Romain van Wassenhove came up with an idea for a connector that could be used to make modular structures out of sustainable rather than wood, plastic or metal. “I wanted to focus my Master’s on a topic that had meaning to me and that would lead to a concrete application,” he says. “Working with bamboo was something I already had in mind while I was studying in Brussels.” His connectors can be 3D-printed in biosourced plastic and are customizable to the type of material used for the structure.

Van Wassenhove got the idea for his connector during a class at EPFL on composite materials and developed the concept further through his Master’s project, co-directed at EPFL by Senior Scientist Anastasios Vassilopoulos and by associate professor Lars De Laet at Vrije Universiteit Brussel (VUB). In September 2020, soon after graduating, he obtained research funds—through an EPFL Ignition Grant—to enhance the design and operation of his connector and test it on an initial application involving bamboo structures. Today van Wassenhove’s invention is EU patent-protected, and his research has just been published in Composite Structures.

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HELSINKI — China rolled out a Long March 2F rocket Wednesday in preparation to send the Shenzhou-12 spacecraft and three astronauts to an orbiting space station module.

The Long March 2F rocket was vertically transferred to its pad at the Jiuquan Satellite Launch Center in the Gobi Desert, the China Manned Space Engineering Office (CMSEO) announced Wednesday.

The rocket will send Shenzhou-12 and three astronauts to the Tianhe core module for China’s space station which launched April 28 Eastern.

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Circa 2020 o,.o.

Long known as the hardest of all natural materials, diamonds are also exceptional thermal conductors and electrical insulators. Now, researchers have discovered a way to tweak tiny needles of diamond in a controlled way to transform their electronic properties, dialing them from insulating, through semiconducting, all the way to highly conductive, or metallic. This can be induced dynamically and reversed at will, with no degradation of the diamond material.

The research, though still at an early proof-of-concept stage, may open up a wide array of potential applications, including new kinds of broadband solar cells, highly efficient LEDs and power electronics, and new optical devices or quantum sensors, the researchers say.

Their findings, which are based on simulations, calculations, and previous experimental results, are reported this week in the Proceedings of the National Academy of Sciences. The paper is by MIT Professor Ju Li and graduate student Zhe Shi; Principal Research Scientist Ming Dao; Professor Subra Suresh, who is president of Nanyang Technological University in Singapore as well as former dean of engineering and Vannevar Bush Professor Emeritus at MIT; and Evgenii Tsymbalov and Alexander Shapeev at the Skolkovo Institute of Science and Technology in Moscow.

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The three astronauts who will take the Shenzhou-12 manned spacecraft to China’s Tianhe space station core cabin in June are now under Level-2 quarantine, with all related work having entered a final sprint stage, Yang Liwei, director of the China Manned Space Engineering Office and the country’s first astronaut revealed.

Yang, who went into space in the Shenzhou-5 craft on October 15, 2003, made the remarks during an interview with state broadcaster China Central Television (CCTV) on Saturday, following the successful launch of the Tianzhou-2 cargo craft earlier in the day.

According to Yang, the three astronauts of the Shenzhou-12 mission, who were selected from China’s first and second batch of astronauts, will stay in space for three months, during which they will conduct tasks including repair and maintenance, appliance switch and scientific operation of payloads.

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