Lifeboat Foundation: Safeguarding Humanity
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Category: transportation

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CHAPTERS:
0:00 Teaser.
0:16 Intro & Recap.
1:56 Wrapping the Board & Assembly.
2:50 Installing New Speed Controllers.
3:16 How Will We Power The Board?
4:14 Hovering Test.
4:52 How To Get Started With Engineering!
5:55 Jimmy Has A Solution!
6:50 Making Sure Things Don’t Go Boom.
8:16 4th Hover Test — Will It Succeed?
9:51 Cooking Eggs On A Super Hot Motor.
10:20 The Finished Board & Installing The Floor.
10:40 The Final Test.
12:56 Outro.

MUSIC:
After Dark by PYLOT
Licensed from Monstercat ►
https://www.monstercat.com/

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Advances in machine learning have made it possible to automate a growing array of coding tasks, from auto-completing segments of code and fine tuning algorithms… See More.

Programs such as GPT-3 can compose convincing text. Some people are using the tool to automate software development and hunt for bugs.

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In February, the researchers introduced a new biomanufacturing platform that can quickly make shelf-stable vaccines at the point of care, ensuring they will not go to waste due to errors in transportation or storage. In its new study, the team discovered that enriching cell-free extracts with cellular membranes — the components needed to made conjugate vaccines — vastly increased yields of its freeze-dried platform.

The work sets the stage to rapidly make medicines that address rising antibiotic-resistant bacteria as well as new viruses at 40000 doses per liter per day, costing about $1 per dose. At that rate, the team could use a 1000-liter reactor (about the size of a large garden waste bag) to generate 40 million doses per day, reaching 1 billion doses in less than a month.

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While leaded gasoline was fully phased out in 1996 with the passage of the Clean Air Act, it still fuels a fleet of 170000 piston-engine airplanes and helicopters. Leaded aviation fuel, or avgas, now makes up “the largest remaining aggregate source of lead emissions to air in the U.S.,” according to the Environmental Protection Agency.

Meanwhile residents continue to live with the air quality that comes with living near an airport where small planes burning leaded fuel fly in and out, said Alarcon, who is also a volunteer organizer with the nonprofit tenant advocacy group Vecinos Activos. It’s also unclear to air quality experts and residents what is arguably safe.

“There is no bright line that says ‘Above this concentration lead is safe and below this concentration’ that it is not. You’d have to make a policy decision,” said Jay Turner, an engineering education professor at Washington University in St. Louis and member of the EPA’s Science Advisory Board. “We’re really careful to come back to this point that just because public areas might meet the EPA standard [for lead] doesn’t mean zero risk or zero concern.”

Piston-engine airplanes have been a mainstay in aviation since they were first introduced in the early 20th century, according to Walter Desrosier, vice president of engineering and maintenance with the aviation industry group General Aviation Manufacturers Association. Since World War II, piston engines have been widely used by pilot hobbyists, aviation students and government agencies because of their high-performing engines and reliability to stay aloft amid rapid changes in temperature, pressure and altitude. They also cost less at $400000 to $500000.

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Bye Aerospace reveals a design for an 8-seat electric airplane aimed to replace the best-selling turboprop, the King Air, with comparable performance and a similar price — but with less than one-fifth the operating costs. Bye’s plans hinge on claims of a battery breakthrough by partner Oxis.

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Oxygen diatomic molecules have lone-pair electrons and magnetic moments. A high-pressure phase called epsilon oxygen is considered stable in a wide pressure range. This material exhibits the transition to metal at ∼100 GPa (1000, 000× atmospheric pressure). The change in the electronic structure involved in the transition under pressure is difficult to measure using conventional methods. In this study, the electronic structures of oxygen have been successfully measured with oxygen K-edge X-ray Raman scattering spectroscopy. We found a change in the spectra related to the metallization of oxygen. Another change in the electronic structure was also observed at ∼40 GPa. This is likely related to the semimetallic transition.

Electronic structures of dense solid oxygen have been investigated up to 140 GPa with oxygen K-edge X-ray Raman scattering spectroscopy with the help of ab initio calculations based on density functional theory with semilocal metageneralized gradient approximation and nonlocal van der Waals density functionals. The present study demonstrates that the transition energies (Pi*, Sigma*, and the continuum) increase with compression, and the slopes of the pressure dependences then change at 94 GPa. The change in the slopes indicates that the electronic structure changes at the metallic transition. The change in the Pi* and Sigma* bands implies metallic characteristics of dense solid oxygen not only in the crystal a–b plane but also parallel to the c axis. The pressure evolution of the spectra also changes at ∼40 GPa.

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**Engineers, using artificial intelligence and wearable cameras, now aim to help robotic exoskeletons walk by themselves.**

Increasingly, researchers around the world are developing lower-body exoskeletons to help people walk. These are essentially walking robots users can strap to their legs to help them move.

One problem with such exoskeletons: They often depend on manual controls to switch from one mode of locomotion to another, such as from sitting to standing, or standing to walking, or walking on the ground to walking up or down stairs. Relying on joysticks or smartphone apps every time you want to switch the way you want to move can prove awkward and mentally taxing, says Brokoslaw Laschowski, a robotics researcher at the University of Waterloo in Canada.

AI and wearable cameras could help exoskeletons act a bit like autonomous vehicles.

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The bill awaits Gov. Jay Inslee’s signature.

Washington state lawmakers have passed a measure that would phase out the sale of gas-powered vehicles starting in 2030. The Clean Cars 2030 initiative passed Thursday as an amendment to a bill that requires state utilities prepare for an electric-vehicle future. The bill now awaits Gov. Jay Inslee’s signature.

That’s five years earlier than planned gas vehicle bans in California and Massachusetts, and the first ban on gas cars passed by legislators, rather than by an executive order. The bill passed Washington’s Senate by a vote of 25–23 and a vote of 54–43 in the House. The bill bans the sale, purchase, or registration of non-EVs from model year 2030 and later, and would include vehicles bought in another state and brought into Washington state.

The Clean Cars 2030 measure depends on the state approving a tax on vehicle miles traveled, which would help pay for new transportation infrastructure in the state, according to the bill.

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