Two Houston student teams are competing in Shell's international competition. Courtesy of Shell

What started as a bet in the '30s has evolved into the Shell's Eco-marathon. The competition challenges high school and college students to engineer the fuel-efficient vehicles. And at this year's Shell Eco-marathon Americas, two teams will be representing Houston.

Students from Rice University and James E. Taylor High School are competing in the Shell Eco-marathon Americas, which begins April 3 and wraps up April 6. This year's competition is being held at Sonoma Raceway in Sonoma, California, and will include more than 90 teams from high schools and colleges throughout North and South America.

That's a far cry from the competition's origins. Shell's first fuel efficiency competition took place in 1939, when two Illinois scientists struck a friendly bet over who could engineer a vehicle that ran the furthest on a gallon of gas. The company held an employee competition that year and, save for around a decade and a half in the '70s and '80s, the competition has been held in some capacity every year.

"We really needed to get more young people interested in technology careers," says Pam Rosen, general manager of the Shell Eco-marathon. "It [doesn't] even need to be with Shell. It's more about the method, science, and helping [students[ gravitate toward those opportunities."

The Shell Eco-marathon has adapted with the decades. Students design vehicles that run on gas, diesel, and biofuels, as well as batteries and electricity. Vehicles fueled by GTL (gas-to-liquid) and hydrogen have also competed in the Eco-marathon, Rosen says.

"It kind of ebbs and flows toward what we see the automotive manufacturers trending toward," Rosen says.

The teams from Rice University is a returning presence to the Eco-marathon, while the team from James E. Taylor High School is competing in the Eco-marathon for its first time. Both teams engineered battery-powered electric urban concept vehicles, Rosen says, and describes "urban concept vehicles" as being similar to Smart cars.

The team that takes the top prize in the Americas' urban concept vehicle competition will compete in the Eco-marathon's regional qualifiers in London. As for the lucky winner? They'll head to Italy, where they'll get to drive their vehicle on the racetrack used in the San Marino Grand Prix in Marino, Italy, Rosen says.

You can now roll in a Rolls with a simple Bitcoin transfer. Photo courtesy of Fertitta Entertainment

Tilman Fertitta's Post Oak Motor Cars first in U.S. to accept cryptocurrency

Champing at the bitcoin

The luxury car dealership alongside Tilman Fertitta's The Post Oak Hotel, Post Oak Motor Cars, is the first Rolls-Royce, Bentley, and Bugatti dealership in the U.S. to accept bitcoin and bitcoin cash for payments. Car buyers across the globe can now nab that Bugatti Dico or Chiron with a simple click of the bitcoin processor BitPay.

"The rising of bitcoin sparked my interest," says Fertitta in a statement. "Being a premier luxury car dealer, I always want to offer my customers the very best buying experience and this partnership will allow anyone around the world to purchase our vehicles faster and easier."

Post Oak Motor Cars clients already have access to perks like dinner reservations, hotel stays, and even helicopter transfers. Bitcoin purchasing is the next step.

"We've noticed people prefer to make larger purchases with bitcoin since it is a simple way to make payments," said Sonny Singh, chief commercial officer of BitPay.

"This partnership is timely with the increasing popularity of Rolls-Royce, Bentley, and Bugatti vehicles. Post Oak Motors has a great reputation of selling the finest cars and we are thrilled to be partnering with Tilman."

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This story originally appeared on CultureMap.

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.