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Walmart recently applied to patent biometric shopping handles that would track a shopper's heart rate, palm temperature, grip force, and walking speed. "The patent, titled 'System And Method For A Biometric Feedback Cart Handle' and published August 23, outlines a system where sensors in the cart send data to a server," reports Motherboard. "That server then notifies a store employee to check on individual customers." From the report: Over time, the server can build a database of data compared against store location and stress response, the patent says -- potentially valuable information for store planning. Other uses outlined in the patent include a pulse oximeter, for detecting when a customer's about to pass out, and a weight-triggered assisted push feature for propelling the cart itself. CBInsights suggests that these alerts could warn associates when several shoppers need help at the same time, or anticipate when arguments are about to break out.

An anonymous reader quotes a report from The Sun: The social network applied for a patent to capture pictures of a user through their smartphone. The creepy designs, which date back to 2015, were discovered by software company CBI Insight, which has been analyzing Mark Zuckerberg's "emotion technology." Patent documents contain illustrations showing a person holding a smartphone with a camera taking a picture from which "emotion characteristics" like smiling or frowning are detected. If the person appears to like what they're seeing, Facebook could place more of the same type of content in front of them. Patents don't always make it through to the end product, so it's not clear whether Facebook will bring out this new feature. Researchers at CBI Insights warned that the plans could put a lot of people off using the service. Facebook appears to have tested out similar technology to work out which emoji to send to people using a selfie.

According to a recently published patent spotted by CB Insights, Walmart "describes a system of connected sensors that could monitor customers' product consumption," reports The Verge. "The sensors would be attached to products and rely on a variety of technology, like radio frequencies, Bluetooth, conventional barcodes, and RFID tags." From the report: Walmart doesn't suggest that any one sensor type would work best; rather, it lays out its options. Apparently it has a lot of ideas: these tags would all track how often a product is used and where it's located in a home. They could also help Walmart figure out what other products it could market to users based off their purchases. A tag reader installed on a fridge, for example, could scan every item that goes inside. This reader could then track when food is going bad or needs to be reordered. On the other hand, an RFID system could figure out when a person is picking up their toothbrush and use that information to estimate how much toothpaste is left. It could then be automatically reordered.

According to CNBC, "Two Tesla executives have been named as directors of a company called Redwood Materials, which appears to focus on technology to recycle and reuse manufacturing materials." From the report: Jeffrey Straubel, chief technical officer, and Andrew Stevenson, head of special projects at the auto firm, were on a U.S. Securities and Exchange Commission (SEC) filing highlighting a $2 million fundraiser for the Redwood Materials. The document was first uncovered by data platform CB Insights on Monday. Straubel and Stevenson are named as executive officers and directors of this company. Stevenson is also down as chief financial officer. Redwood Materials describes itself as making "advanced technology and process development for materials recycling, remanufacturing, and reuse," on its website. The SEC filing shows that the company was set up in 2017 and is based in Redwood City, California. It has raised $2 million from just one investor but the name of the backer is not disclosed. The extent of Tesla's involvement with Redwood Materials is unclear, but if it were a partner, customer or even investor, it would certainly make sense. The company, which is run by billionaire Elon Musk, has been focused on ways to make its supply chain more efficient in order to scale and meet demand. Using a company like Redwood Materials would allow Tesla to own more of the supply chain, potentially helping to boost production, and in a more sustainable way, given that it would be recycling materials to be manufactured into different parts.

An anonymous reader shares a Quartz report: Unicorns, start-up companies valued at over $1 billion each, once a rare sighting for investors, have frolicked across Silicon Valley of late. Now the market seems to be yanking on the reins. Venture capital research firm CB Insights reports the number of venture-backed startups achieving a $1 billion or more valuation ground to a halt over the last six months. In the first quarter of 2016, only five new unicorns arrived. That's compared to an average of about 20 per quarter last year. The number of startups worth at least $1 billion has doubled since 2015 to more than 160, says CB Insights. At the same time, the number of such companies accepting "down rounds" or exits with lower valuations is now up. That number exceeded the quantity of new unicorns being created starting in the last quarter of 2015.