Popular Mechanics - USA (2022-01 & 2022-02)

January/February 2022 35 ing, the fourth-f loor walkway plummeted 30 feet and slammed into the second-f loor walkway, which then ...

FROM THE DAY OF CONSTRUCTION, THEY HAD ONLY MINIMAL CAPACITY TO RESIST THEIR OWN WEIGHT. ...

January/February 2022 37 from the atrium ceiling and running through box beams on the underside of each walkway. Each box beam, ...

Those who were fatally injured were told they wouldn’t make it. One bartender died on the lobby f loor, as a surgeon was ampu- t ...

January/February 2022 39 engineering world in the decades that followed. The American Society of Civil Engineers adopted a polic ...

BATTERI THE HOLY GRAIL OF 40 January/February 2022 ...

Solid- state lithium batteries can last 25 years and ch a r ge a n electric vehicle in minutes. IS HERE BY CAROLINE DELBERT Janu ...

THE DRY ROOM AT SOLID POWER’S Louisville, Colorado, facility is abrasively bright, and yet the low, encompass- ing hum of the fa ...

age,” he explains. And compared with other alkalis, such as potassium or sodium, lithium has the smallest ion size—and third-low ...

Li+ Li+ Li+ Li+ Li+ Li+ Li+ Li+ Li+ e- Li+ Li+ Li+ Li+ Li+ Li+ Li+ Li+ Li+ H O W L I T H I U M - I O N B A T T E R I E S WORK HA ...

plentiful, conducts well, and is easy to work with. However, lithium metal’s capacity is 10 times that of graphite. “Lithium met ...

the brittle nature of ceramics—which leads to dendrite-friendly cracks—poses additional manufacturing difficulties that companie ...

This new technology could mean recharging a car in the same time required to fill a gas tank. Olympics, where Toyota, working wi ...

48 January/February 2022 Legendary Wooden W BY WARREN DENHOLM HOW I RESTORED A ...

January/February 2022 49 Britain delivered more than 6,700 de Havilland DH.98 Mosquitos during WWII, but when Denholm’s team beg ...

50 January/February 2022 PREVIOUS SPREAD: GETTY IMAGES but resurrecting vintage combat aircraft is the most chal- lenging and re ...

January/February 2022 51 GETTY IMAGES (TOP); COURTESY WARREN DENHOLM (RIGHT) from piano makers to cabinet build- ers put the pla ...

52 January/February 2022 COURTESY WARREN DENHOLM a Mosquito revival had never been closer. When an American client took delivery ...

January/February 2022 53 THE NATIONAL ARCHIVES (UNITED KINGDOM), CATALOGUE REF: INF 2/1272 was deteriorating wood and brittle gl ...

54 anuary/February 2022J strong, light three-layer “shell” that could absorb enemy fire without breaking apart. The Mosquito’s f ...