HackerMaker

Markus Kayser uses Sahara sun to sinter (melt and fuse) sand in a layered technique like 3D printing to produce glass objects. He gives a talk and explanation in his TEDx talk. If you subscribe to his YouTube channel , you will see his other sun-cutter video. In Bang Goes the Theory  these guys use focused sunlight to melt rock at 3,500 Celsius: "Just two square metres of sunlight can melt steel easily"

Dr Scott M. Baker says: I was tired of carrying media back and forth to my homebuilt XT computer, so I used dual-ported RAM to build a virtual floppy replacement that serves floppy images up from a raspberry pi. A small BIOS extension loaded into the dual-ported RAM simulates a floppy disk drive. Requests are made by the ISA PC, and served by the raspberry pi.

Chris Notap shows how to cut through glass and ceramics with cheap diamond hole cutters from ebay, and shows a nifty pop-bottle water feeder for cooling the bit, as well as a simple jig to hold the drill steady as you start a new hole.

Out of plumbing fittings, a drawer knob, and old table lamp and a weight, Rolof maker constructs a lovely looking camera mount tripod. As usual he leads us through it here, with little more measurement than rough marker outlines.

Rulof Maker is always good to watch. Here, instead of repairing some plastic spectacle frames, he makes some out of wood. What is quite amazing is the good results he gets without measuring, and using a thick felt pen to draw outlines with. What is even more amazing is how he doesn't lose a finger while doing it! If you want to buy some nice wooden sunglasses (which I presume he didn't make, follow the link:  https://goo.gl/BNWcfQ  which probably contains his Amazon partner ID)

How to Enable HTTPS on blogger for custom domains You may have seen notes like this: Update: Google has Officialy released the SSL Certificates for Blogger Blogs with Custom domains, So you no longer need to follow this long guide to enable HTTPS on your blog  in places such as this:  https://www.howtoshout.com/enable-https-blogger-blog-custom-domain/ but then you take a look in your blogger settings and see the sad news: Warning: HTTPS is not available at the moment for custom domain blogs. And then you find tips that draft mode could solve this problem but cause other problems . Rather than formally enable draft mode and suffer it's slings and arrows of misfortune, just access the blog settings via draft mode; change from: to: Lo and behold, you now get the choice: Say "yes" and watch it change Though it may take some time to process The change remains even when you switch back away from draft in the address bar And a short while later, yo...

Making A Celt Stone Axe From Scratch (including handle) Better hope that you watch this video before you need it...