What Is 3D Printing?

Medical researchers are making strides with bioprinting, during which they harvest human cells from biopsies or stem cells, multiply them in a petri dish, and use that to create a type of biological ink that printers can spray. (The 3-D printer is programmed to sort the different cells sorts and different supplies into a 3-D shape.)

For the kids who desire a face solely a mom may love, dad and mom should prepare several milk jug masks earlier than the get together. Here’s how: Gather one empty, washed gallon milk jug for every two company. Lower alongside the aspect seams of every jug, beginning from the mouth of the jug.

McDonald’s 1950s success impressed a competitor, the Indianapolis-based mostly Basic Gear Manufacturing Company, to try its hand at cooking up even more efficient know-how for peddling burgers and shakes. In 1958, bay vip Normal Equipment launched the Burger Chef chain, whose franchises had been geared up with automatic conveyor broilers designed to churn out 800 flame-broiled patties with “cook out flavor” per hour, in addition to similarly prolific automated milkshake mixing machines [source: Jakle]. By 1972, Burger Chef had grown to 1,200 retailers, second only to McDonald’s 1,600 [source: Hurley]. However too-fast expansion turned out to be Burger Chef’s undoing. Confronted with declining earnings, in 1981 then-owner Normal Foods sold out to Hardee’s. However one Burger Chef legacy stays: the insidious quick-food marketing tactic of packaging an affordable plastic toy with a small hamburger, fries, drink and dessert, which it invented in 1973 with the Fun Meal [supply: Sanders].