Collaborate Disseminate
For a certain kind of intricate, highly-detailed manufacturing, there’s really no substitute for a resin 3D printer, and it’s therefore unfortunate that they require so many poisonous chemicals. The resin …read more Continue reading A Fume-Control Cabinet for Resin 3D Printing
One simple screening tool for cognitive impairment is the clock-drawing test (CDT): the patient is provided with a printed circle and asked to draw a clock face with the hands …read more Continue reading A Clock Inspired by Failed Cognitive Tests
In some parts of the world it’s common for cell service providers to sell new phones at a price significantly below market value, with the caveat that these phones are …read more Continue reading Linux on Android Provides Inexpensive, Powerful Computing
There are a surprising number of experiments an amateur nuclear physicist can perform, from making a Geiger counter to fusing hydrogen atoms in a fusor. One project which we haven’t …read more Continue reading A Benchtop Neutron Generator for the Home Reactor
Processor design over the last few decades has moved toward RISC processors that aim to implement a few simple operations very efficiently. For a while, though, the trend was toward …read more Continue reading Just How Bad Was the Intel iAPX432?
Most consumer-grade night vision devices are basically a standard camera without the usual filter to block near infrared (NIR) light, which are then paired with a NIR light source that’s …read more Continue reading Long-Range Night Vision with an Infrared Laser
If you need a VPN gateway to access your home network, the fastest and most cost-effective way is probably by using a Raspberry Pi Zero. But in [Samir Makwana]’s view, …read more Continue reading Running a VPN Gateway on an ESP32
Anyone who’s worked with even a 1 mm bit knows that while a drill press is all but essential, it isn’t proof against broken bits. Working with a 0.1 mm …read more Continue reading A Precision Drill Press for Tiny Bits
The vibrobot – a vibrating motor and battery attached to the head of a brush – isn’t truly a robot, since its movement can’t be controlled, but it’s whetted the …read more Continue reading Controlling a Vibrobot with Only One Motor
CDMA2000 was one of the protocols defined for 3G networks and is now years out of date and being phased out worldwide. Nevertheless, there are still vast numbers of phones …read more Continue reading Running Your Own 3G Network