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DIY Pinhole Camera for Safe Solar Eclipse Viewing

With the upcoming solar eclipse, it's crucial to avoid looking directly at the sun. Instead of eclipse glasses, you can create a pinhole camera using card stock or paper and a sharp object like a sewing needle or paper clip. By making a small hole in one piece and holding it above your shoulder to project the sun's image onto another piece on the ground, you can safely view the eclipse without risking eye damage. Adjusting the distance between the two pieces can change the size of the projected image. For those feeling more ambitious, NASA offers instructions for making a pinhole projector box.

1 year ago•Source: PCMag

"Mastering Tubeless Tyres: A Quick 5-Step Guide"

how-to-guide

10.36 min•2 years ago

"Mastering Tubeless Tyres: A Quick 5-Step Guide"

This article provides a step-by-step guide on how to set up tubeless tyres for road, gravel, and mountain bikes. It explains the components needed for a tubeless setup, including tubeless tape, tubeless valves, sealant, tubeless-ready rims, and tubeless tyres. The article also offers tips and techniques for properly fitting and setting up tubeless tyres, such as preparing and taping the rim, fitting the tubeless valve, fitting the tyre, and adding the sealant.

via BikeRadar