Okay, so I wouldn't say invisible. Still pretty cool, though. Here's a bit of the story from the inventors/designers.
Time for #EBookGifts 2025
8 months ago
Getting A Grip on the Handlebars of Life.
It's a really interesting journey. Just as biking will occasionally put you in a space you weren't expecting, so does building.There is something primal about the maker urge.Melting metal
This was by far the most fun, scary and rewarding part of the build. I decided to fillet-braze the bike, which means mastering the handling of the oxy-acetylene torch. If you’ve never seen one, it’s a pretty hardcore setup. One tank of oxygen, one tank of acetylene, a ridiculously flammable gas. This potent mixture can produce a flame that burns at around 6000 degrees Fahrenheit. It can also explode and kill you. So being careful is pretty key.
Mike's posts are a short and interesting read.It took about three weeks to build the whole thing with the setbacks, parts that didn’t fit, and the wheel building. There were a few nights out in the garage where I was tempted to just rip through and finish the build if I had to stay up all night. But I decided to wait, and give myself some time to think about the problem or order the right part instead of scrounging/modifying what I had. I heard a great piece of advice from another guy at the workshop:Whenever I think I’m 30 minutes away from finishing a project, I stop and come back to it the next day. This way I don’t rush, and force myself to be smart and do it right.I think about this a lot and how useful it is when applied to basically everything. Don’t rush, do it right. You don’t want to ruin 9 months of work because the hardware store was closed.
It’s a fairly simple product, actually. You get a unit that fits onto your wheel. The unit has four bars of LED lights. Then you upload graphics or animations. And then you just pedal — pretty fast — and the lights turn on and the motion of the bike wheel turns them into animations and you’ve got the coolest thing going on the road. Cars will definitely, definitely see you.
But it’s, uh, pricey, at $660 for one unit (i.e., if you want both your wheels tricked out like this, you’re out more than $1,300). Still, you could have bike wheels with an animation of you riding a bike on them. Think about it.
| via NPR |
When Chris Ategeka was 9, his younger brother died while Ategeka was helping to carry him to the nearest hospital — 10 miles from their village in Fort Portal, Uganda.
There was no quicker way to get his sick brother, who was coughing and had a bloody stool, to medical care. "I did not understand the concept of lack of mobility being the biggest factor until it got later in life. I realized how that could have helped so much," he tells Shots.
Ategeka and his five siblings became orphans after their mother and father died of AIDS. But Ategeka, now 28, considers himself lucky.
A U.S. aid organization helped AIDS orphans like him attend school. Ategeka did well. He impressed the California family that sponsored him so much that they invited him to come live with them in 2006.
Since then, he has earned engineering degrees at University of California, Berkeley, where he'll begin a doctorate in mechanical engineering this fall. And he's been using what he learned already to solve the problem that contributed to the death of his brother nearly 20 years ago.
Ategeka founded , a nonprofit that teaches villagers how to build bike ambulances and wheelchairs from scrap metal. "I teach you how to make it, and I teach you how to fix it," he says. "If it breaks, you know what to do, and if you want to build something you think outside the box and you do it."
Izhar has released a video of his bike in construction and in action:
Izhar Gafni, 50, is an expert in designing automated mass-production lines. He is an amateur cycling enthusiast who for years toyed with an idea of making a bicycle from cardboard.
He told Reuters during a recent demonstration that after much trial and error, his latest prototype has now proven itself and mass production will begin in a few months.
"I was always fascinated by applying unconventional technologies to materials and I did this on several occasions. But this was the culmination of a few things that came together. I worked for four years to cancel out the corrugated cardboard's weak structural points," Gafni said.
"Making a cardboard box is easy and it can be very strong and durable, but to make a bicycle was extremely difficult and I had to find the right way to fold the cardboard in several different directions. It took a year and a half, with lots of testing and failure until I got it right," he said.
The bicycles are not only very cheap to make, they are very light and do not need to be adjusted or repaired, the solid tires that are made of reconstituted rubber from old car tires will never get a puncture, Elmish said. "These bikes need no maintenance and no adjustment, a car timing belt is used instead of a chain, and the tires do not need inflating and can last for 10 years," he said. A full-size cardboard bicycle will weigh around 9 kg (about 20 lbs) compared to an average metal bicycle, which weight around 14 kg. The urban bicycle, similar to London's "Boris bikes" and others worldwide, will have a mounting for a personal electric motor. Commuters would buy one and use it for their journey and then take it home or to work where it could be recharged. He said that as bicycles would be so cheap, it hardly mattered how long they lasted. "So you buy one, use it for a year and then you can buy another one, and if it breaks, you can take it back to the factory and recycle it," he said.

In the Ford E-Bike, the first application of this technology in the bicycle industry, the sensors read the revolutions in the inner bearing and relay this information to the control unit within a hundredth of a second. The control unit then instantly activates or deactivates the electric motor, providing a seamless integration of the power of the legs with the power of the motor.It utilizes a trapezoidal frame profile made from aluminum and carbon, looks crazy cool, and will not be available for purchase. Ever. It's a "concept bike", much like the "concept car".