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The latest Messages 4
2021-02-02 12:37:37
DVD Optics Power This Scanning Laser Microscope
https://hackaday.com/2021/02/02/dvd-optics-power-this-scanning-laser-microscope/
We’ve all likely seen the amazing images possible with a scanning electron microscope. An SEM can yield remarkably detailed 3D images of the tiniest structures, and they can be invaluable tools for research. But blasting high-energy cathode rays onto metal-coated …read more (https://hackaday.com/2021/02/02/dvd-optics-power-this-scanning-laser-microscope/)
70 views09:37
2021-02-02 09:48:06
Upgrading the Batteries In A BMW i3
https://hackaday.com/2021/02/01/upgrading-the-batteries-in-a-bmw-i3/
The BMW i3 debuted on the market in late 2013, one of the brand’s first electric cars. Also available with an optional range-extending engine, early models featured a 60 Ah battery providing up to 130km range on a full charge. …read more (https://hackaday.com/2021/02/01/upgrading-the-batteries-in-a-bmw-i3/)
66 views06:48
2021-02-02 06:21:11
This Isn’t Your Father’s Yellow Card
https://hackaday.com/2021/02/01/this-isnt-your-fathers-yellow-card/
As the global vaccination effort rolls out in many countries, people will increasingly be required to provide evidence for various reasons, especially travelers. Earlier this month a coalition which includes Microsoft, the Mayo Clinic, Oracle, MITRE, and others announced an …read more (https://hackaday.com/2021/02/01/this-isnt-your-fathers-yellow-card/)
69 views03:21
2021-02-02 04:01:08
Upgrading An Old Mig Welder Wire Feeder With Arduino
https://hackaday.com/2021/02/01/upgrading-an-old-mig-welder-wire-feeder-with-arduino/
Older industrial equipment is often a great option if you’re on a budget, and you might even be able to add some premium features yourself. [Brett] from [Theoretically Practical] has done with his old MIG welder, adding premium control features …read more (https://hackaday.com/2021/02/01/upgrading-an-old-mig-welder-wire-feeder-with-arduino/)
70 views01:01
2021-02-02 00:37:27
Handy Tool Drains 18650 Cells So You Don’t Have To
https://hackaday.com/2021/02/01/handy-tool-drains-18650-cells-so-you-dont-have-to/
Draining a battery is easy. Just put a load across the terminals, maybe an incandescent bulb or a beefy power resistor, and wait. What’s quite a bit trickier is doing so safely. Put too large a load on, or …read more (https://hackaday.com/2021/02/01/handy-tool-drains-18650-cells-so-you-dont-have-to/)
70 views21:37
2021-02-01 23:33:25
All The Best Computers From Cambridge Boot To Basic
https://hackaday.com/2021/02/01/all-the-best-computers-from-cambridge-boot-to-basic/
The Raspberry Pi is a fine machine that appears in many a retrocomputing project, but its custom Linux distribution lacks one thing. It boots into a GNU/Linux shell or a fully-featured desktop GUI rather than as proper computers should, to …read more (https://hackaday.com/2021/02/01/all-the-best-computers-from-cambridge-boot-to-basic/)
70 views20:33
2021-02-01 21:44:11
It Costs WHAT?! A Sounding Into Hearing Aids
https://hackaday.com/2021/02/01/it-costs-what-a-sounding-into-hearing-aids/
We are accustomed to medical devices being expensive, but sometimes the costs seem to far exceed reasonable expectations. At its most simplistic, a hearing aid should just be a battery, microphone, amplifier, and speaker, all wrapped in an enclosure, right? …read more (https://hackaday.com/2021/02/01/it-costs-what-a-sounding-into-hearing-aids/)
67 views18:44
2021-02-01 20:47:59
Mechanical Timekeeping Hack Chat with Clickspring
https://hackaday.com/2021/02/01/mechanical-timekeeping-hack-chat-with-clickspring/
Join us on Wednesday, February 3 at noon Pacific for the Mechanical Timekeeping Hack Chat with Clickspring!
The reckoning of the passage of time has been of vital importance to humans pretty much for all our history, but for most …read more (https://hackaday.com/2021/02/01/mechanical-timekeeping-hack-chat-with-clickspring/)
65 views17:47
2021-02-01 19:52:12
Electric Candle Replaces Flame with Plasma
https://hackaday.com/2021/02/01/electric-candle-replaces-flame-with-plasma/
Ah, the charm of candlelight! Nothing says “romance” — or “extended power outage” — like the warm, soft glow of a real candle. But if you’re not a fan of burning wax for whatever reason, this electric plasma candle may …read more (https://hackaday.com/2021/02/01/electric-candle-replaces-flame-with-plasma/)
69 views16:52
2021-02-01 18:53:56
Sirius XM Satellite Failure a Reminder that Space is Risky (And That Satellite Insurance is a Thing)
https://hackaday.com/2021/02/01/sirius-xm-satellite-failure-a-reminder-that-space-is-risky-and-that-satellite-insurance-is-a-thing/
It’s easy to imagine that once a spacecraft leaves Earth’s atmosphere and is in a stable orbit, the most dangerous phase of the mission is over. After all, that’s when we collectively close the live stream and turn our attentions …read more (https://hackaday.com/2021/02/01/sirius-xm-satellite-failure-a-reminder-that-space-is-risky-and-that-satellite-insurance-is-a-thing/)
68 views15:53
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