Have an old iPad lying around? You might be able to make it run Linux soon - Ars Technica

Actually booting Linux instead iOS - there may be no going back … https://arstechnica.com/gadgets/2022/06/developers-get-linux-up-and-running-on-old-ipad-air-2-hardware/

Installing Linux on iPad: A Comprehensive Guide — linuxvox.com

Mostly emulation or containers in order to deal with the unique hardware … some interesting things to try. https://linuxvox.com/blog/install-linux-on-ipad/ 

The whitest paint is here – and it’s the coolest. Literally. - Purdue University News

Use to reduce heat island effect in Phoenix? https://www.purdue.edu/newsroom/archive/releases/2021/Q2/the-whitest-paint-is-here-and-its-the-coolest.-literally..html

Using refurbished small form factor PCs as home network appliances: Whole-network ad blocking and DNS filtering

Note that Raspberry Pi’s can do the same tasks using less energy, but they cost considerably more: https://www.howtogeek.com/turned-cheap-e-waste-pc-into-lightning-fast-local-dns-server/

6.5 Grendel Rifle Build

https://www.brownells.com/the-trigger-times/how-to/rifle-builds--installs/6.5-grendel-rifle-build/

"The 6.5 Grendel remains one of the most capable long-range AR-15 cartridges available ..."

"This build uses a standard AR-15 lower receiver paired with a custom upper featuring a Ballistic Advantage 16-inch 6.5 Grendel barrel, Samson SXT handguard, SureFire muzzle device, and Nightforce NX8 optic."

"The primary differences between a standard 5.56 AR-15 and a 6.5 Grendel build are:

• Barrel
• Bolt
• Magazine
• Optional dedicated firing pin

Caleb explains the importance of using a Type 2 6.5 Grendel bolt, which has become the industry standard. Older Type 1 components can create compatibility issues if mixed improperly.

The build also uses DuraMag 6.5 Grendel magazines, which are known for reliable feeding and compatibility with both 6.5 Grendel and 6mm ARC cartridges."

6.5 Grendel Range Report

https://www.brownells.com/the-trigger-times/how-to/rifle-builds--installs/6.5-grendel-range-report/

"By the end of the session, the rifle had no trouble producing repeated impacts from 100 to 500 yards. The build proved reliable, accurate, and fun to shoot.

...

If you are considering a long range AR-15 build and want more energy on target than standard 5.56, the 6.5 Grendel continues to be a cartridge worth considering."

308 Caliber Sabot | Accelerator Type Precision Reloading

Fire .223/4 bullets at high speed from a .308 rifle: https://eabco.com/accelerator-type-sabots-for-30-caliber-cartridges-100/