Robin George Andrews, reporting for National Geographic: A 62-year-old adventure mystery that has prompted conspiracy theories around Soviet military experiments, Yetis, and even extraterrestrial contact may have its best, most sensible explanation yet -- one found in a series of avalanche simulations based in part on car crash experiments and animation used in the movie Frozen. In an article published this week in the journal Communications Earth and Environment, researchers present data pointing to the likelihood that a bizarrely small, delayed avalanche may have been responsible for the gruesome injuries and deaths of nine experienced hikers who never returned from a planned 200-mile adventure in Russia's Ural Mountains in the winter of 1959.

In what has become known as the Dyatlov Pass incident, ten members of the Urals Polytechnic Institute in Yekaterinburg -- nine students and one sports instructor who fought in World War II -- headed into the frigid wilderness on a skiing and mountaineering expedition on January 23, 1959. One student with joint pain turned back, but the rest, led by 23-year-old engineering student Igor Dyatlov, continued on. According to camera film and personal diaries later found on the scene by investigators, the team made camp on February 1, pitching a large tent on the snowy slopes of Kholat Saykhl, whose name can be interpreted as "Dead Mountain" in the language of the region's Indigenous Mansi people. The nine -- seven men and two women -- were never heard from again.

When a search team arrived at Kholat Saykhl a few weeks later, the expedition tent was found just barely sticking out of the snow, and it appeared cut open from the inside. The next day, the first of the bodies was found near a cedar tree. Over the next few months, as the snow thawed, search teams gradually uncovered more spine-chilling sights: All nine of the team members' bodies were scattered around the mountain's slope, some in a baffling state of undress; some of their skulls and chests had been smashed open; others had eyes missing, and one lacked a tongue. Each body was a piece in a grim puzzle, but none of the pieces seemed to fit together. A criminal investigation at the time blamed their deaths on an "unknown natural force," and the Soviet bureaucracy kept the case quiet. The lack of detail about this shocking event, an apparent massacre that transpired in a deeply secretive state, gave rise to dozens of long-lived conspiracy theories, from clandestine military tests to Yeti attacks.

An anonymous reader quotes a report from The New York Times: A military arm of the intelligence community buys commercially available databases containing location data from smartphone apps and searches it for Americans' past movements without a warrant, according to an unclassified memo obtained by The New York Times. Defense Intelligence Agency analysts have searched for the movements of Americans within a commercial database in five investigations over the past two and a half years, agency officials disclosed in a memo they wrote for Senator Ron Wyden, Democrat of Oregon.

The disclosure sheds light on an emerging loophole in privacy law during the digital age: In a landmark 2018 ruling known as the Carpenter decision, the Supreme Court held that the Constitution requires the government to obtain a warrant to compel phone companies to turn over location data about their customers. But the government can instead buy similar data from a broker -- and does not believe it needs a warrant to do so. "D.I.A. does not construe the Carpenter decision to require a judicial warrant endorsing purchase or use of commercially available data for intelligence purposes," the agency memo said.

Mr. Wyden has made clear that he intends to propose legislation to add safeguards for Americans' privacy in connection with commercially available location data. In a Senate speech this week, he denounced circumstances "in which the government, instead of getting an order, just goes out and purchases the private records of Americans from these sleazy and unregulated commercial data brokers who are simply above the law." He called the practice unacceptable and an intrusion on constitutional privacy rights. "The Fourth Amendment is not for sale," he said.

CNN reports: A 70-foot rocket, riding beneath the wing of a retrofitted Boeing 747 aircraft, detached from the plane and fired itself into Earth's orbit on Sunday — marking the first successful launch for the California-based rocket startup Virgin Orbit.

Virgin Orbit's 747, nicknamed Cosmic Girl, took off from California around 10:30 am PT with the rocket, called LauncherOne, nestled beneath the plane's left wing. The aircraft flew out over the Pacific Ocean before the rocket was released, freeing LauncherOne and allowing it to power up its rocket motor and propel itself to more than 17,000 miles per hour, fast enough to begin orbiting the Earth... The rocket flew a group of tiny satellites on behalf of NASA's Educational Launch of Nanosatellites, or ELaNa, program, which allows high school and college students to design and assemble small satellites that NASA then pays to launch into space... About four hours after takeoff on Saturday, Virgin Orbit confirmed in a tweet that all the satellites were "successfully deployed into our target orbit."

The successful mission makes Virgin Orbit only the third so-called "New Space" company — startups hoping to overhaul the traditional industry with innovative technologies — to reach orbit, after SpaceX and Rocket Lab. The success also paves the way for Virgin Orbit to begin launching satellites for a host of customers that it already has lined up, including NASA, the military and private-sector companies that use satellites for commercial purposes.
Virgin Orbit shared a 57-second video on Twitter showing the moment their rocket was released and then launched, saying the event went exactly as planned.

"To say we're thrilled would be a massive understatement, but 240 characters couldn't do it justice anyway."

Xiaomi plunged a record 10% after the Trump administration blacklisted China's No. 2 smartphone maker and 10 other companies, broadening efforts to undercut the expansion of the country's technology sector. From a report, shared by dxxt: The U.S. has targeted scores of Chinese companies for the stated purpose of protecting national security, but going after Xiaomi was unexpected. The Beijing-based company has been viewed as China's answer to Apple, producing sleek smartphones that draw loyal fans with each new release. The company, which vies with Huawei Technologies for the title of China's No. 1 mobile device brand, also makes electric scooters, earphones and smart rice cookers. The U.S. Defense Dept. identified Xiaomi as one of nine companies with alleged ties to the Chinese military -- which means American investors will be prohibited from buying their securities and will have to divest holdings by November.

Writing in the Atlantic, programmer/economics commentator Steve Randy Waldman explains "Why I changed my mind" about the Communication Decency Act's Section 230: In the United States, you are free to speak, but you are not free of responsibility for what you say. If your speech is defamatory, you can be sued. If you are a publisher, you can be sued for the speech you pass along. But online services such as Facebook and Twitter can pass along almost anything, with almost no legal accountability, thanks to a law known as Section 230.

President Donald Trump has been pressuring Congress to repeal the law, which he blames for allowing Twitter to put warning labels on his tweets. But the real problem with Section 230, which I used to strongly support, is the kind of internet it has enabled. The law lets large sites benefit from network effects (I'm on Facebook because my friends are on Facebook) while shifting the costs of scale, like shoddy moderation and homogenized communities, to users and society at large. That's a bad deal. Congress should revise Section 230 — just not for the reasons the president and his supporters have identified.

When the law was enacted in 1996, the possibility that monopolies could emerge on the internet seemed ludicrous. But the facts have changed, and now so must our minds... By creating the conditions under which we are all herded into the same virtual space, Section 230 helped turn the internet into a conformity machine. We regulate one another's speech through shame or abuse, but we have nowhere to go where our own expression might be more tolerable. And while Section 230 immunizes providers from legal liability, it turns those providers into agents of such concentrated influence that they are objects of constant political concern. When the Facebook founder Mark Zuckerberg and the Twitter founder Jack Dorsey are routinely (and justifiably!) browbeaten before Congress, it's hard to claim that Section 230 has insulated the public sphere from government interference...

If made liable for posts flagged as defamatory or unlawful, mass-market platforms including Facebook and Twitter would likely switch to a policy of taking down those posts automatically.... Vigorous argument and provocative content would migrate to sites where people take responsibility for their own speech, or to forums whose operators devote attention and judgment to the conversations they host. The result would be a higher-quality, less consolidated, and ultimately freer public square.

The New York Stock Exchange said on Wednesday it will delist three Chinese telecom companies, confirming its latest reversal on the matter a day after U.S. Treasury Secretary Steve Mnuchin told the NYSE chief he disagreed with an earlier decision to reverse the delistings. From a report: The latest move, which is effective Jan. 11, marks the third time in less than a week the Big Board has ruled on the matter. The flip-flopping highlights the confusion over which firms were included in an executive order issued by President Donald Trump in November barring U.S. persons from investing in publicly traded companies Washington deems to be tied to the Chinese military. It also comes amid escalating tensions within Washington on China policy in the final days of the Trump administration. "There is a unique situation where there is an outgoing administration that is disengaged and (there are) orders sitting out there, so something has to be done, but noone wants to take on responsibility," said Leland Miller, the CEO of the U.S.-based consultancy China Beige Book. "I think in future that anyone getting these orders will say: 'Tell us exactly what you want us to do,' and force administrations to be more focused."

Wikileaks founder Julian Assange cannot be extradited to the United States, a court in London has ruled. The BBC reports: The judge blocked the request because of concerns over Mr Assange's mental health and risk of suicide in the U.S. Mr Assange, who is wanted over the publication of thousands of classified documents in 2010 and 2011, says the case is politically motivated. Expressing disappointment at the ruling, the U.S. justice department noted that its legal arguments had prevailed. Its position is that the leaks broke the law and endangered lives.

"While we are extremely disappointed in the court's ultimate decision, we are gratified that the United States prevailed on every point of law raised," the justice department said. The U.S. authorities have 14 days in which to lodge an appeal and are expected to do so. Mr Assange will now be taken back to Belmarsh Prison -- where he is being held -- and a full application for his bail will be made on Wednesday. His lawyer Ed Fitzgerald QC told the court there would be evidence to show Mr Assange would not abscond. [...]

If convicted in the U.S., Mr Assange faces a possible penalty of up to 175 years in jail, his lawyers have said. However the U.S. government said the sentence was more likely to be between four and six years. Mr Assange faces an 18-count indictment from the U.S. government, accusing him of conspiring to hack into U.S. military databases to acquire sensitive secret information relating to the Afghanistan and Iraq wars, which was then published on the Wikileaks website. He says the information exposed abuses by the U.S. military. But U.S. prosecutors say the leaks of classified material endangered lives, and so the U.S. sought his extradition from the UK.

Employees of Google and parent company Alphabet announced the creation of a union on Monday, escalating years of confrontation between workers and management of the internet giant. From a report: The Alphabet Workers Union said it will be open to all employees and contractors, regardless of their role or classification. It will collect dues, pay organizing staff and have an elected board of directors. The unionizing effort, a rare campaign within a major U.S. technology company, is supported by the Communications Workers of America as part of a recent tech-focused initiative known as CODE-CWA. Googlers who join the Alphabet Workers Union will also be members of CWA Local 1400. The group, which represents more than 200 workers in the U.S., plans to take on issues including compensation, employee classification and the kinds of work Google engages in. "We will hire skilled organizers to ensure all workers at Google know they can work with us if they actually want to see their company reflect their values," Dylan Baker, software engineer at Google, said in a statement. A letter from the union organizers published in the New York Times said workplace concerns at the company have been dismissed by executives for too long. Google has clashed with some employees in recent years over contracts with the military, the different treatment of contract workers and a rich exit package for an executive ousted for alleged sexual harassment.

AmiMoJo quotes Universe Today: Other worlds aren't the only difficult terrain personnel will have to traverse in humanity's exploration of the solar system. There are some parts of our own planet that are inhospitable and hard to travel over. Inner Mongolia, a northern province of China, would certainly classify as one of those areas, especially in winter. But that's exactly the terrain team members from the China Aerospace Science and Technology Corporation (CASTC) had to traverse on December 16th to retrieve lunar samples from the Chang'e-5 mission. What was even more unique is that they did it with the help of exoskeletons.

Strangely enough, the workers wearing the exoskeletons weren't there to help with a difficult mountain ascent, or even pick up the payload of the lunar lander itself (which only weighed 2 kg). It was to set up a communications tent to connect the field team back to the main CASTC headquarters in Beijing. The exoskeletons were designed to help people carry approximately twice as much as they would be able to. Local state media described a single person carrying 50kg over 100m of the rough terrain without becoming tired. Setting up communications equipment isn't all the exoskeletons are good for though. They were most recently used by Chinese military logistics and medical staff in the Himalayas, where the country has been facing down the Indian military over a disputed line of control.

Since 1976 "Project Censored," a U.S.-based nonprofit media watchdog organization, has been identifying "the news that didn't make the news," the most significant stories it believes are being systematically overlooked. Slashdot ran stories about its annual list of the year's most censored news stories in 1999, 2003, 2004, and in 2007, when they'd presciently warned that the media was ignoring the issue of net neutrality.

But their latest list of underreported stories includes this disturbing headline: "Antibiotic Abuse: Pharmaceutical Profiteering Accelerates Superbugs." Pharmaceutical giants Abbott and Sun Pharma are providing dangerous amounts of antibiotics to unlicensed doctors in India and incentivizing them to overprescribe. In August 2019 the Bureau of Investigative Journalism (BIJ) reported that these unethical business practices are leading to a rise in superbugs, or bacterial infections that are resistant to antibiotic treatment. Bacteria naturally evolve a resistance to antibiotics over time, but the widespread and inappropriate use of antibiotics accelerates this process. Superbugs are killing at least 58,000 babies each year and rendering a growing number of patients untreatable with all available drugs.

India's unlicensed medical practitioners, known as "quack" doctors, are being courted by Abbott and Sun Pharma, billion-dollar companies that do business in more than one hundred countries, including the United States. The incentives these companies provide to quack doctors to sell antibiotics have included free medical equipment, gift cards, televisions, travel, and cash, earning some doctors nearly a quarter of their salary. "Sales representatives would also offer extra pills or money as an incentive to buy more antibiotics, encouraging potentially dangerous overprescription," a Sun Pharma sales representative revealed to an undercover BIJ reporter... [P]atients without access to better care often turn to quack doctors for treatment, and many are unaware that their local medical "professionals" have no formal training and are being bribed to sell unnecessary antibiotics.

In September 2019, the BIJ reported on similar problems with broken healthcare systems, medical corruption, and dangerous superbugs in Cambodia. Their account describes how patients often request antibiotics for common colds, to pour onto wounds, and to feed to animals. Illegally practicing doctors and pharmacists in Cambodia admitted that they would often prescribe based on customer requests rather than appropriate medical guidelines. As the BIJ noted, "This kind of misuse speeds up the creation of drug resistant bacteria, or superbugs, which are predicted to kill 10 million people by 2050 if no action is taken...."

Although superbugs have attracted some attention, their cause and importance remain poorly understood by the public. The Independent and BuzzFlash republished the Bureau of Investigative Journalism's report; otherwise, the role of pharmaceutical companies in the rise of dangerous superbugs has been drastically underreported.
The site's list of the top 25 censored stories of 2019 - 2020 also includes:

• Growing interest in so-called "public" banks, "not legally obligated to maximize profits, as private banks are; instead, public banks are mandated to serve their communities."

• How rising sea levels and warmer waters will impact nuclear power plants, "posing increased risks of nuclear disasters."

• Proposals to revitalize journalism through public funding.

• How the U.S. military represents "a massive, hidden contributor to the climate crisis."

Logic magazine has interviewed an anonymous engineer at Amazon Web Services. An excerpt from the story, which touches a wide-range of topics including controversial work with the military and police and takes on other cloud providers: So when you use AWS, part of what you're paying for is security.
Right; it's part of what we sell. Let's say a prospective customer comes to AWS. They say, "I like pay-as-you-go pricing. Tell me more about that." We say, "Okay, here's how much you can use at peak capacity. Here are the savings we can see in your case." Then the company says, "How do I know that I'm secure on AWS?" And this is where the heat turns up. This is where we get them. We say, "Well, let's take a look at what you're doing right now and see if we can offer a comparable level of security." So they tell us about the setup of their data centers. We say, "Oh my! It seems like we have level five security and your data center has level three security. Are you really comfortable staying where you are?" The customer figures, not only am I going to save money by going with AWS, I also just became aware that I'm not nearly as secure as I thought. Plus, we make it easy to migrate and difficult to leave. If you have a ton of data in your data center and you want to move it to AWS but you don't want to send it over the internet, we'll send an eighteen-wheeler to you filled with hard drives, plug it into your data center with a fiber optic cable, and then drive it across the country to us after loading it up with your data.

What? How do you do that?

We have a product called Snowmobile. It's a gas-guzzling truck. There are no public pictures of the inside, but it's pretty cool. It's like a modular datacenter on wheels. And customers rightly expect that if they load a truck with all their data, they want security for that truck. So there's an armed guard in it at all times. It's a pretty easy sell. If a customer looks at that option, they say, yeah, of course I want the giant truck and the guy with a gun to move my data, not some crappy system that I develop on my own.

The New York Stock Exchange said it will delist three Chinese companies to comply with a U.S. executive order that imposed restrictions on companies that were identified as affiliated with the Chinese military. From a report: China Mobile, China Telecom, China Unicom Hong Kong will be delisted between Jan. 7 and Jan. 11, according to a statement by the exchange.

Since 1955 the U.S./Canadian operation that monitors North American airspace with radars and satellite to maintain air sovereignty has also, at Christmas time, been tracking Santa.

And this year their trackers received additional support from the U.S. Space Command, a joint-military command drawing its units from five military service branches (including the U.S. Space Force). That command "launched a new reindeer tracker to pinpoint the exact location of Santa's sleigh at any given time during the night," according to NPR's Morning Edition, with General James Dickinson telling them the equipment's official name: Rudolph Infrared Tracking System. "We made some upgrades this year."

And that was just the beginning, reports The Hill: Santa knows astronauts need presents, too, and made his first known visit to the International Space Station to deliver them this year.

The North American Aerospace Defense Command (NORAD), which tracks Santa's Christmas Eve journey every year, depicted in a tweet Santa arriving at the International Space Station on Christmas Eve...

The Federal Aviation Administration cleared Santa for the flight to space on Wednesday, providing him "for the first time ever" with a special commercial space license.
The astronauts aboard the ISS recorded a special Christmas video this year. (And a new article in Business Insider expores how astronauts on the space station have celebrated Christmas over the years.)

And NORAD is even maintaining a special web site at NORADSanta.org which not only let visitors track Santa, but through December 31st will also offer an arcade with Christmas-themed videogames, a selection of music by the U.S. Air Force Academy Band, and even a gift shop where you can buy "Santa and NORAD gear," including NORAD hoodies and tote bags.

Though a pop-up window warns visitors that "Clicking through to this next website does not constitute an official endorsement or approval by the United States Department of Defense or NORAD of any product or service."

Seventy-three suspected cheaters, one critical mistake. Dozens of cadets at the U.S. Military Academy at West Point were caught cheating on a calculus final exam in May after they all made the same errors on the test, according to officials. From a report: Instructors at the Army's premier training ground for officers revealed the academic scandal on Monday, saying it's the worst they've seen since the 1970s. So far, 59 cadets out of a suspected 73 have admitted to taking part in the scam in which the students "shared answers and made the same mistakes," Lt. Col. Chris Ophardt, a West Point spokesman told NPR. The test was administered remotely due to the coronavirus pandemic. Four cadets have resigned and another eight, who say they're innocent of any wrongdoing, will face a full hearing led by seniors at the academy. The cases against two others initially implicated in the scheme have been dismissed for lack of evidence..

The military news site Task and Purpose reports: The U.S. military's youngest branch, the Space Force, just trounced its sibling services, as well the United Kingdom's military, in the second annual Call of Duty Endowment Bowl.

The transatlantic Call of Duty: Black Ops Cold War tournament pit eight teams from the U.S. Army, Navy, Air Force, Space Force, and Marine Corps, along with the British Army, Royal Navy, and Royal Air Force, against each other. Each team was captained by a civilian gamer and popular streamer who offered guidance and tips to players in real-time as they vied for the top spot...

The tournament was put on by the Call of Duty Endowment, which has placed more than 77,000 veterans into full-time jobs since its inception in 2009. This year alone, the endowment placed 11,000 veterans in jobs amidst the novel coronavirus (COVID-19) pandemic.

"Space Force isn't even a year old so this may have been their very first win in anything competitive against any of the other services," Dan Goldenberg, the endowment's executive director said during the event, according to Business Insider. "So it's a heck of a great way to start off their history."

An anonymous reader writes: The U.S. military's Space Force branch celebrated its one-year anniversary Friday by announcing that its members would now be known as "guardians". But the name was not universally greeted with respect and appreciation. Gizmodo announced the news with a headline which read "Space Force Personnel Will Be Called 'Guardians' Because Sure, Whatever," in an article which jokingly asks how this will affect the other ranks of this branch of the military. "Does someone get promoted from Guardian to Sentinel to Space Paladin to Tython, The Secessionist King Of Mars or something?" (Their article also suggests other names the U.S. military could have considered — like "moon buddies" or "rocketeers" — even at one point proposing "starship troopers".)

Forbes wrote that "The mockery arrived instantly and in great rivers..." But there was an interesting observation from a British newspaper (which is in fact, named The Guardian). "As the Associated Press put it, delicately: 'President-elect Joe Biden has yet to reveal his plans for the space force in the next administration.'" In fact, New York magazine called the new name for members of Space Force the "strongest case yet for its demise," in an article headlined "Abolish the Space Force." ("Maybe 'stormtrooper' was too obvious...")

In an apparent bid to be taken more seriously, on Friday the Space Force also shared an official anniversary greeting they'd received from Lee Majors, the actor who'd played a cybernetically-enhanced Air Force colonel in the 1970s action series The Six Million Dollar Man (who, in later seasons, befriended Bigfoot and the alien community who'd brought him to earth).

But Mashable added sympathetically that "It's been a long year, though. If people want to draw some nerdy joy from a U.S. military branch inadvertently referencing comic books and video games, let them have their fun."

Slashdot reader destinyland writes: The U.S. Space Force celebrated its one-year anniversary Friday with a new announcement: that members of this branch of the military will be referred to as "guardians." They're describing it as "A name chosen by space professionals, for space professionals." The site Space.com notes that the phrase is a nod to the original long-standing "Space Command" branch of the Air Force (founded in 1982), whose motto had been "Guardians of the High Frontier."

In other news, the Space Force now has one member who is actually in outer space — astronaut Michael Hopkins. Launched by SpaceX to the International Space Station in the Crew-1 capsule, Hopkins agreed to join the Space Force in a ceremony in space which a Space Force official said would "spotlight the decades-long partnership" between NASA and America's Defense Department (which oversees its armed forces).

NASA Administrator Jim Bridenstine pointed out that 60% of the astronaut corps comes from the military, according to Space.com, which adds that "At least one other member of NASA's active astronaut corps, Air Force Col. Nick Hague, has also requested to transfer to the Space Force."

The United States confirmed on Friday it will add dozens of Chinese companies, including the country's top chipmaker, SMIC, and Chinese drone giant DJI to a trade blacklist. From a report: The move, which was first reported by Reuters, is seen as the latest in President Donald Trump's efforts to cement his tough-on-China legacy. It comes just weeks before Democratic President-elect Joe Biden is set to take office on Jan. 20. The U.S. Commerce Department confirmed the decision early Friday, saying the action "stems from China's military-civil fusion (MCF) doctrine and evidence of activities between SMIC and entities of concern in the Chinese military industrial complex." Commerce Secretary Wilbur Ross said in a statement that the department would "not allow advanced U.S. technology to help build the military of an increasingly belligerent adversary." Ross said the government would presumptively deny licenses to prevent SMIC from accessing technology to produce semiconductors at advanced technology levels -- 10 nanometers or below.

The socialist regime once cracked down on bitcoin miners. Now it's mining the digital asset itself. From a report: At a military base outside Caracas, Venezuela, state video footage shows officers in green fatigues cut a blue ribbon donned with a cluster of glossy balloons. Then, the men pry open the doors of a narrow, dimly-lit bunker. But the balloons weren't inaugurating a new weapons factory or training facility. They marked the opening of a new bitcoin mining farm. Venezuela's President Nicolas Maduro needs cash to sustain his grip on power after muddling through one of the worst economic implosions seen in recent modern history in the Western Hemisphere. It appears that Maduro's last ditch effort to buoy Venezuela's shriveling economy is to dig deep for this digital asset and sell it for hard cash.

"In a strategic alliance with private capital, the Bolivarian army inaugurated the first center for the production of digital assets at the Fuerte Tiuna facilities," said a spokesperson in footage published by state television in late November. Venezuelan General Domingo Antonio Hernandez Larez details the project in a cramped conference room, then he and other officers fondle a few S9 AntMiners, a type of specialized computer used to mine bitcoin, the volatile cryptocurrency whose price is scraping all-time-highs of just under $20,000 per coin. "This center of digital asset production will ensure self-financing sufficiency within the military," the Venezuelan state TV official explains. "These mining activities will be key for increasing revenues for the country."

Connecticut-based company LiquidPiston is developing a portable generator for the US Army that uses its X-Engine, a fresh and extremely powerful take on the rotary engine that'll deliver as much power as the Army's current-gen-set at one-fifth the size. New Atlas reports: We've written a few times before about the fascinating LiquidPiston rotary engine. It's not a Wankel -- indeed, it's closer to an inside-out Wankel -- and with only two moving parts, it's able to deliver extraordinary power density at up to 1.5 horsepower per pound (0.45 kg). According to co-founder and CEO Alec Schkolnik, the X Engine design combines the high compression ratio and direct injection of a diesel engine with the constant volume combustion process of an Otto cycle engine and the over-expansion abilities of an Atkinson cycle engine, while solving the lubrication and sealing issues of the Wankel rotary engine and delivering huge power and efficiency. Check out the design being used in a go-kart and an unmanned aircraft in the video below.

LiquidPiston demonstrated the technology for the US Army by building a Compact Artillery Power System (CAPS) generator unit designed to power the digital fire control system on an M777 Howitzer artillery piece. It replaced a generator that needed a truck to move it around with something 20 percent the size: a 41-lb (18.6-kg), 1.5-cubic foot (28.3-L) box about the size of a gaming PC that can easily be carried by two men. Smartly designed to work in conjunction with a battery in a hybrid system, the 2-kW CAPS generator impressed the Army enough that LiquidPiston has been awarded a Small Business Innovation Research contract to develop it further as a 2-5 kW Small Tactical Generator for a range of military use cases, running on diesel with compression ignition.