An Up-Close Look At The First Martian Helicopter

The news was recently abuzz with stories of how the Mars 2020 mission, which launched from Cape Canaveral at the end of July, had done something that no other spacecraft had done before: it had successfully charged the batteries aboard a tiny helicopter that is hitching a ride in the belly of the Mars 2020 rover, Perseverance.

Although the helicopter, aptly named Ingenuity, is only a technology demonstrator, and flight operations will occupy but a small fraction of the time Mars 2020 is devoting to its science missions, it has still understandably captured the popular imagination. This will be humanity’s first attempt at controlled, powered flight on another planet, after all, and that alone is enough to spur intense interest in what amounts to a side-project for NASA. So here’s a closer look at Ingenuity, and what it takes to build a helicopter that will explore another world.

Continue reading “An Up-Close Look At The First Martian Helicopter”

Staged Train Wrecks: An Idea That Ran Out Of Steam

Before there were demolition derbies, there were train totalings. That’s right, somebody had the idea to take a couple of worn-out train engines that were ready for the scrap heap, point them at each other, and drive them full steam ahead. And their boss said capital idea, let’s do it. This was the late 1890s.

Maybe it wasn’t the safest way to spend an evening, but a staged train wreck was surely an awesome spectacle to behold. Imagine being one of the brave engineers who had no choice but to get the train going as fast as possible and then jump out at the last second. A demolition derby seems like child’s play by comparison.

The largest and most widely-publicized wreck was put on by a man named William George Crush who was trying to find new ways to promote the Missouri-Kansas-Texas passenger railway. Once he got the okay, Crush found a large field surrounded by three hills that made for excellent viewing. He stood up a temporary town complete with a circus tent restaurant, a wooden jail cell, and 200 rent-a-constables.

On September 15th, 1896, forty thousand people gathered to watch two trains collide along a section of purpose-built track. They hit each other going 50 mph (80 km/h) and both engines exploded, sending hot iron projectiles every which way. Several people were injured, a few died, and a hired photographer lost an eye to shrapnel. Train totalings nevertheless continued until the Great Depression of the 1930s, when the practice was discarded as wasteful.

Thanks for the tip, [Martin]!

WiiBoy Color Is Exactly What It Sounds Like

Anyone can go out and buy a handheld console, and if you want to be the cool kid on the school bus, you can always ask your parents to take you out to get one. But if you want real street cred that lasts through your adult years, you’ve gotta put something together yourself. [GingerOfMods] has done just that with the Wiiboy Color. 

Yes, it’s another home-console-turned-portable, and it’s perfomed with exquisite execution. The Wii motherboard is cut and sliced to the absolute bare minimum, as the aim was to build the entire system to the rough form factor of the original Game Boy Color. Custom PCBs were then used to link the chopped ‘board to peripherals, such as the USB drive used to load games and the circuitry from a Gamecube controller. The screen is a beautiful looking 3.5″ IPS LCD, running at 480p and originally intended for use as an automotive backup camera. Battery life is around 2-3 hours, with a USB-C port included for easy charging. More details are included on the forum build log.

It’s a tidy build, and the 3D printed case, Switch joysticks and DS Lite buttons give it a near-production quality finish. [GingerOfMods] intends to build more for commissions, though expect a hefty price tag given the labor and custom work involved. We’ve seen other portable Wiis before too, like this tightly-packed Kapton-heavy build. Video after the break.

Continue reading “WiiBoy Color Is Exactly What It Sounds Like”