Popular Mechanics USA - 09.2019

“Trying,” she says. The reboot works. As the data finishes downloading, Owings shouts, “19,000!”—referring to the number of ping ...

BLUE BLOOD BY THE NUMBERS In the bleeding process, a needle is inserted into a membrane that runs along the crab’s heart; there’ ...

shoe crabs is much higher (more like 29 percent), that females may have an impaired ability to spawn, and that bled crabs become ...

medical companies from bleeding crabs. They just want them to do it in a less damaging way. For instance: Com- panies may not kn ...

them into a lab. “It also made us realize we don’t know what these guys do most of the year. No one observes these guys except w ...

THE OF HIDDEN SCIENCE 64 September 2019 ...

HOW POWERFUL ALGORITHMS DECIDE WHEN THAT ELEVATOR CAR IS FINALLY GOING TO COME PICK YOU UP. BY JESSE DUNIETZ ...

YOU WALK TO the elevator, you hit the Up button, and you wait. And you wait. And... you wait. There really is a good reason the ...

a customized pain index, in which the computer system weighs the awfulness of each kind of delay. Further complicating mat- ters ...

This is why your typical ele- vator bay has call buttons for up and down: so the car that’s already heading skyward can stop to ...

Computing Complexity THE COUP THAT really car- ried elevator programming up a few floors happened in the 1970s, when reprogramma ...

LAKOTA GAMBILL (BLACK DIAMOND ICON); COURTESY A T THEIR BEST, head- lamps make you feel as powerful as Cyborg—that three- eyed s ...

BLACK DIAMOND ICON P R I C E $100 R U N T I M E 70 to 175 hours M A X LUMENS 500 BEAM DISTANCE 415 feet LED COLORS white, red, b ...

LED COLORS white R U N T I M E 2.5 to 100 hours P R I C E $120 M A X LUMENS 900 BEAM DISTANCE 492 feet WEIGHT 3.5 ounces BEST TE ...

September 2019 73 At less than 4 ounces and small enough to fit in a pocket, the FL85R pumps out 700 lumens of light, and adjust ...

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L IKE BOB DYLAN in Newport, the chainsaw has gone electric. The advent of high-capacity lithium-ion storage cells, improved brus ...

1 ESSENTIAL HEAD SAFETY / Protect your head, eyes, and ears from noise and debris with this Husqvarna Functional Forest helmet ( ...

STIHL MSA 200C-BQ PRICE: $640 WEIGHT : 11.6 lb* VOLTAGE: 36 AMP HOURS: 5.2 BAR LENGTH: 10 inches Stihl is the only saw manufac- ...