• Where Was the Battery at Tesla’s Battery Day?

    “Large format reduces all the ‘inactive’ materials, like packaging. So pack-level energy density will improve and cost will come down,” says Shirley Meng, a materials scientist who runs the Laboratory for Energy Storage & Conversion at the UC San Diego. It’s exactly the sort of beefy power supply that Tesla will need for its planned heavy-duty vehicles like the Cybertruck and its electric semi. But the real innovation in Tesla’s battery is what you can’t see.

    In all EV batteries, a thin layer of copper foil serves as a current collector for the anode and a layer of aluminum foil for the cathode. A tab is joined to each of these current collectors and serves as the battery’s connection to the outside world. But these tabs hobble the performance of the cells and make them more difficult to produce. Manufacturers must use a specialized welding technique to connect them

  • A new lawsuit may force YouTube to own up to the mental health consequences of content moderation

    For big tech platforms, one of the more urgent questions to arise during the pandemic’s early months was how the forced closure of offices would change their approach to content moderation. Facebook, YouTube, and Twitter all rely on huge numbers of third-party contract workers to police their networks, and traditionally those workers have worked side by side in big offices. When tech companies shuttered their offices, they closed down most of their content moderation facilities as well.

    Happily, they continued to pay their moderators — even those who could no longer work, because their jobs required them to use secure facilities. But with usage of social networks surging and an election on the horizon, the need for moderation had never been greater. And so Silicon Valley largely shifted moderation duties to automated systems.

    The question was whether it would work — and this week, we began to get some details.

  • ‘Jurassic Park III’ got the Spinosaurus wrong. It was a nightmarish aquatic monster.

    Ever since the first discovery of the terrifying Spinosaurus aegyptiacus by German paleontologist Ernst Freiherr Stromer von Reichenbach all the way back in 1912, scientists through the centuries have debated whether the dinosaur was land or water dwelling.

    Most hypotheses would point towards land, while there was a strong minority that begged to differ.

    But that debate has finally been put to rest.

    Thanks to a new discovery published in Cretaceous Research, scientists can now confirm that the Spinosaurus was indeed an aquatic dinosaur.

    In case you’re not familiar with the Spinosaurus, it’s that gigantic T-Rex-killing dinosaur with a vast sail on its back in Jurassic Park III:

    IMAGE: Global News

    Excavations at the Kem Kem riverbed in the Moroccan Sahara Desert uncovered more than 1,200 fossilized teeth, belonging to the Spinosaurus.

    “The huge number of teeth we collected in the prehistoric river bed reveals that Spinosaurus aegyptiacus

  • Degrees In Biotechnology

    Pharmaceutical engineering is a branch of science that uses the concepts of Chemical Engineering. With respect to food security, when new traits launched to biotech-derived crops are examined by the EPA and the FDA, the proteins produced by these traits are studied for his or her potential toxicity and potential to trigger an allergic response. Tests designed to look at the warmth and digestive stability of those proteins, as well as their similarity to known allergenic proteins, are accomplished previous to entry into the meals or feed supply. To put these issues in perspective, it is useful to note that whereas the particular biotech traits being used are sometimes new to crops in that they typically do not come from crops (many are from micro organism and viruses), the same fundamental sorts of traits typically will be found naturally in most vegetation. These primary traits, like insect and disease resistance, …