The resurrection of cells, the vacuum cleaner of 1.7 billion and the music of the electric age

unknown element

We are far from having found the formula for immortality, but believing in the MIT Technology Review, death turns out to be more and more a blurred, relative and, finally, slightly exaggerated notion. Researchers at the Yale School of Medicine have managed to resuscitate the cells of several pigs an hour after their death thanks to an experimental system called OrganEx. This pump, assisted by a complex computer program, ensures the functions of the heart and lungs while injecting the body with a mixture of synthetic hemoglobin, antibiotics and various molecules that protect cells and prevent coagulation and irreparable congestion of the organs.

The experiment, controlled by a cloud of sensors spread across the pigs’ arteries, produced amazing results, far more convincing than those of conventional extracorporeal assist machines used as a last resort to supplement the heart and lungs of patients with severe respiratory distress. . Heart cells from pigs that had died more than an hour began to contract again, and the organs showed much less damage, swelling or post-mortem bleeding than those from animals treated with the old machines.

It will take more to raise the dead. But could the organs thus saved be transplanted? Yale researchers think about it all the time, but they haven’t quite got it yet…

roomba

“Alexa! Please vacuum!” Amazon’s famous voice assistant could soon complete its vocation as a butler, managing all household chores, says the New York Times. Following smart thermostats and Ring alarm systems, Jeff Bezos’s tech giant announces the $1.7 billion acquisition of iRobot, the maker of the Roomba autonomous vacuum cleaner.

This feat of futuristic appliances, a rolling plate packed with sensors and electronics that scrubs the apartment before returning on its own to empty its dust and recharge its battery in its high-tech base, could become the jewel of the home automation branch. Amazon.

This worries a little to the associations of defense of the consumer. The machine, which is already capable of discerning 80 types of objects, including electrical cables and animal droppings, could also easily establish an exact map of dwellings, and who knows? – allow Amazon to resell this data without scruples. But enough of paranoia. The Roomba already wants to be a loyal member of the family, no matter how extravagant it is. If you’ve never seen a cat in a shark costume ride a vacuum cleaner, open the video in the middle of the article. No, nothing, really, it’s quite normal.

Sound of silence

Can we believe in the kingdom of silence? The millions of electric cars that, in less than thirty years, will replace gasoline cars should emit, for all noise, only the dull murmur of their tires on the asphalt. But this discretion presents dangers in urban areas for distracted pedestrians and bicyclists. Hence these laws that since 2020 require manufacturers to provide their electric models with a specific and artificial alert sound when they travel at less than 30 kilometers per hour.

But which? the new yorker, in a majestic investigation, tells us about this complex investigation. Renault works with Ircam laboratories [Institut de recherche et coordination acoustique/musique] and Italian composer Andrea Cera to a range of elegant and smooth French sounds, while General Motors and Ford struggle, with the help of the best musicians, to find recognizable and distinct sounds that are real alerts, but also representative of the power of the vehicle and its brand. image. The electric version of Ford’s massive F150 truck can only tolerate a low, manly tone, which ironically sounds a bit like a gas engine. Tesla has long been insisting with the authorities to be able to use his fetishistic artificial noises: the bleating of goats, and of course, his legendary fart noises already available inside vehicles for the entertainment of passengers.

Another enigma revealed by the New Yorker When all cars are electric, this cacophony of radically different sounds could be more confusing and off-putting than the narrower range of gasoline engine noises we’ve been used to for generations.

death walk

the edge It takes us along the border with Mexico, the scene of four years of political positioning by Donald Trump. Its legendary wall, reputedly impassable, is ridiculed every day by illegal immigrants armed with large ladders or mountaineering ropes. Members of the local cartel also simply have copies of the keys to the service doors of the huge metal enclosure.

However, surveillance technologies are reaching their peak. The Border Patrol, the border guards, have a dozen military drones capable of detecting movements on the ground from an altitude of 6,000 meters, as well as thousands of sensors and cameras scattered throughout the desert and supported by clouds of remote-controlled microhelicopters. But this high-tech debauchery does not deter immigrants. It only constitutes a powerful obstacle that they circumvent through the least guarded areas, but also through the most uninhabited and inhospitable areas of the desert. Abandoned, or only guided by telephone by their smugglers, there are thousands who will lose their lives.

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