If you need to power up your smartphone but are nowhere near an AC outlet … well, that's why Sweden's SiGNa Chemistry and myFC developed the PowerTrekk fuel cell/battery. While it's a handy device for off-grid device-charging, it's not exactly the type of thing that you'd just slip into a purse or pocket. myFC's new JAQ, however, is exactly that. It's being billed as the world's smallest fuel cell charger.
What do you do after you've 3D-printed the world's tiniest functional power drill?
If you're Lance Abernethy, you go on to add another miniature power
tool to your Lilliputian toolbox. Abernethy's latest creation is a
working 3D-printed circular saw that fits in a briefcase slightly bigger
than a thumbnail.
According to its manufacturers, the human-powered A-Bike
is the world's smallest, lightest folding bicycle. It's certainly also
one of the strangest-looking. Now, a group of UK-based entrepreneurs are
hoping to extend its claims to the world of e-bikes, with the A-Bike