Hackaday [Unofficial]10h ago

A Camera Viewfinder Makes A Great TV

https://fed.brid.gy/r/https://hackaday.com/2026/05/31/a-camera-viewfinder-makes-a-great-tv/

139h ago
A Camera Viewfinder Makes A Great TV https://hackaday.com/2026/05/31/a-camera-viewfinder-makes-a-great-tv/
#Classichacks #Retrocomputing #Crt #CRTviewfinder #Display
A Camera Viewfinder Makes A Great TV

When we think of CRT camera viewfinders, most of us probably imagine the tiny CRTs you’d find in a 1980s camcorder. They’re super cute and a load of fun to play with, but they’re …

Hackaday
Hackaday [Unofficial]May 16

21st Century Punch Cards are 3D Printed and Read By OpenCV

https://fed.brid.gy/r/https://hackaday.com/2026/05/16/21st-century-punch-cards-are-3d-printed-and-read-by-opencv/

21st Century Punch Cards Are 3D Printed And Read By OpenCV

While a punch card is perhaps the lowest-density storage medium available, it has some distinct advantages. As [Bitroller] points out in the write-up of his punch card project, if he was using stai…

Hackaday
13May 16
21st Century Punch Cards are 3D Printed and Read By OpenCV https://hackaday.com/2026/05/16/21st-century-punch-cards-are-3d-printed-and-read-by-opencv/
#Classichacks #Computerhacks #3dprint #Computervision #Opencv #Punchcard
21st Century Punch Cards Are 3D Printed And Read By OpenCV

While a punch card is perhaps the lowest-density storage medium available, it has some distinct advantages. As [Bitroller] points out in the write-up of his punch card project, if he was using stai…

Hackaday
Hackaday [Unofficial]May 13

Measure the Earth’s Rotation Victorian Style

https://fed.brid.gy/r/https://hackaday.com/2026/05/13/measure-the-earths-rotation-victorian-style/

Measure The Earth’s Rotation Victorian Style

You’ve probably seen a Foucault pendulum in a museum. This Victorian-era science demonstration is named after physicist Léon Foucault and shows how the Earth rotates compared to a pendulum mo…

Hackaday
13May 13
Measure the Earth’s Rotation Victorian Style https://hackaday.com/2026/05/13/measure-the-earths-rotation-victorian-style/
#Classichacks #Science #Foucaultpendulum #Pendulum
Measure The Earth’s Rotation Victorian Style

You’ve probably seen a Foucault pendulum in a museum. This Victorian-era science demonstration is named after physicist Léon Foucault and shows how the Earth rotates compared to a pendulum mo…

Hackaday
Hackaday [Unofficial]May 12

This (Pseudo) Random Number Generator Does It With Neon

https://fed.brid.gy/r/https://hackaday.com/2026/05/12/this-pseudo-random-number-generator-does-it-with-neon/

13May 12
This (Pseudo) Random Number Generator Does It With Neon https://hackaday.com/2026/05/12/this-pseudo-random-number-generator-does-it-with-neon/
#Classichacks #Parts #Neonlamp #Prng #Random #Rng #Sha256
This (Pseudo) Random Number Generator Does It With Neon

The quest for true randomness has roots in cryptography and is a rabbit hole that gets surprisingly deep with alarmingly rapidity. Still, the generation of random-enough numbers is a popular hacker…

Hackaday
Hackaday [Unofficial]May 7

Wigglegrams with a Pinhole Camera

https://fed.brid.gy/r/https://hackaday.com/2026/05/07/wigglegrams-with-a-pinhole-camera/

13May 7
Wigglegrams with a Pinhole Camera https://hackaday.com/2026/05/07/wigglegrams-with-a-pinhole-camera/
#Classichacks #3dprintedcamera #Pinholecamera #Wigglegram
Wigglegrams With A Pinhole Camera

A pinhole camera is almost a rite of passage in photography, given that you can make one so easily with little more than a cardboard box and enough tape to keep the light from coming through the cr…

Hackaday