Explaining on Instagram: "Follow (us) @Explaining to learn something NEW every day 🧠‼️ In the 1960s, engineers developed a needle-free injector — a futuristic medical device that used high-pressure jets of liquid to deliver vaccines or medicine through the skin without a needle 💉➡️💨 It worked by shooting a fine stream of fluid faster than the speed of sound, penetrating the skin painlessly and reducing infection risks. Though the tech looked straight out of science fiction, it was actually us

ToolsToday on Instagram: "This CNC-built shop utility cart has become one of my most used projects in the shop 👌 Cut on the Stepcraft M.1400 and it’s been a game-changer for storage and mobility for in progress projects. Plans are available on our site (item no. SHOPCART). All tools from @toolstoday — check them out! -- Stepcraft M.1400 CNC machine, item no. stepcraft_M1400 Amana Tool 1/8" Carbide Drill bit, item no. SCFD-100 Amana Tool 90 Degree Insert Carbide V-Bit, item no. RC-45711 Amana To