What's new arround internet
| Src | Date (GMT) | Titre | Description | Tags | Stories | Notes |
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2021-04-19 11:24:57 | NASA Lands Ingenuity, the First Ever Mars Helicopter (lien direct) | The copter safely whirled its way up and back down, demonstrating the first powered, controlled flight on another planet. | |||
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2021-04-19 11:00:00 | How to Watch Tomorrow\'s Apple Event (lien direct) | The company is expected to unveil some new hardware Tuesday. Here's how to stream the big show. | |||
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2021-04-19 11:00:00 | Want to Get Along With Robots? Pretend They\'re Animals (lien direct) | Robotics ethicist Kate Darling surveys our history with animals-in work, war, and companionship-to show how we might develop similar relationships with robots. | |||
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2021-04-18 13:00:00 | These Are Our Favorite Hair Straighteners (lien direct) | Curls and waves are beautiful. But when you want to smooth them out, these hot tools (including irons, a brush, and a comb) work wonders. | |||
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2021-04-18 12:00:00 | Ecobee\'s Ecosystem Is an Easy Way to Embrace the Smart Home (lien direct) | For the past six months, this Alexa-integrated security and thermostat platform made my house feel safer and more comfortable. | |||
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2021-04-18 12:00:00 | Mathematicians Settle the Erdős Coloring Conjecture (lien direct) | Fifty years ago, three mathematicians came up with a graph theory problem that they thought they might solve on the spot. A team has finally settled it. | |||
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2021-04-18 12:00:00 | The Pandemic Proved That Our Toilets Are Crap (lien direct) | The core technologies for sewage systems were developed over a hundred years ago. It's time to get better, healthier updates in the pipeline. | |||
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2021-04-18 11:00:00 | How to Schedule Emails and Texts to Send Anytime You Want (lien direct) | Your messages don’t have to go out right away. Be strategic about when your recipient gets them. | |||
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2021-04-18 11:00:00 | How the Smart Remote Lost Its Way (lien direct) | Once, we dreamed of one controller to rule them all. But when Logitech killed off the Harmony line, it ended an era. | |||
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2021-04-17 13:00:00 | How the FBI Got Into the San Bernardino Shooter’s iPhone (lien direct) | Plus: Russian sanctions, Europe’s SolarWinds fallout, and more of this week’s top security news. | |||
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2021-04-17 13:00:00 | The Best Accessories for Your New PlayStation 5 (lien direct) | From backup controllers to full-on sound systems, here are our favorite complements to your PS5. | |||
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2021-04-17 13:00:00 | Everyone On Facebook’s Oversight Board Should Resign (lien direct) | The committee's coming decision on banning Donald Trump from the platform is meaningless. Its existence only gets in the way of actually fixing Facebook. | |||
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2021-04-17 11:00:00 | 15 Best Weekend Deals on TVs, Smart Speakers, and PC Gear (lien direct) | It’s a laid-back, put-your-feet-up kind of weekend. These discounts might help get your zen on. | |||
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2021-04-16 17:22:43 | (Déjà vu) A Pause on J&J, Preparation for Booster Shots, and More News (lien direct) | Catch up on the most important updates from this week. | |||
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2021-04-16 16:00:00 | Turns Out, Spock Is Kinda Bad at Logic (lien direct) | For her new book, Julia Galef cataloged the Vulcan's predictions and found events he describes as "impossible" actually happened 83 percent of the time. | |||
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2021-04-16 13:00:00 | Archaeologists Unearth a ‘Lost Golden City’ in Egypt (lien direct) | The Luxor finding has been called "the second most important archaeological discovery" since King Tut's tomb. | ★★★ | ||
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2021-04-16 13:00:00 | Tips to Make Recovering From Surgery or Illness Easier (lien direct) | Embracing the tools that let us live and work in a pandemic made a recent recovery much easier. Here's what I learned. | ★★ | ||
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2021-04-16 13:00:00 | Can the ArcLight Cinema in Hollywood Be Saved? (lien direct) | Cinephiles have been mourning the news that the iconic movie theater won’t reopen. But there might still be hope for the Cinerama Dome. | ★★★★★ | ||
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2021-04-16 12:00:00 | The FDA’s Decision to Pause J&J Could Help Defeat Covid-19 (lien direct) | A slower vaccine rollout isn’t ideal, but it’s more important that Americans know they can trust officials to address health concerns when they arise. | |||
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2021-04-16 12:00:00 | People Are Playing a Guessing Game in Google Maps (lien direct) | For most people, GeoGuessr is a fun way to pass the time. For others, it’s a way into the record books. | |||
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2021-04-16 11:00:00 | Cord-Cutting Isn\'t About Saving Money. It\'s About Control (lien direct) | Making the switch to streaming used to be a way to pay only for what you watched. Those days are long gone. | |||
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2021-04-16 11:00:00 | Come Cry With Us on Gadget Lab’s 500th Episode Extravaganza (lien direct) | This week, we mark a major milestone by inviting our podcast’s past co-hosts to share their memories of working on the show. It’s equal parts lulz and tears. | |||
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2021-04-16 11:00:00 | What Octopus Dreams Tell Us About the Evolution of Sleep (lien direct) | Understanding how other animals dream could help us figure out why it’s so important to the human brain, and why it may have been preserved throughout history. | |||
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2021-04-15 19:26:14 | Pausing the J&J Vaccine Was Easy. Unpausing Will Be Hard (lien direct) | Johnson & Johnson’s Covid-19 vaccine was supposed to be the uncomplicated one. But even with new data, getting people to trust it again will be tricky. | |||
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2021-04-15 19:21:09 | US Sanctions on Russia Rewrite Cyberespionage\'s Rules (lien direct) | The US has sent a loud message to Moscow—though what it's saying isn’t exactly clear. | |||
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2021-04-15 13:00:00 | DJI\'s New Drone Makes Aerial Cinematography a Breeze (lien direct) | A better image sensor and more AI-powered video smarts make the Air 2S one of the best drones you can buy. | |||
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2021-04-15 13:00:00 | Google Earth Now Shows You Our Planet’s Slow Deterioration (lien direct) | A new time-lapse video feature in Google Earth lets users see how humans have reshaped the globe over the decades. | |||
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2021-04-15 12:00:00 | Sorry, but ‘I Missed the Meeting’ Is No Longer an Excuse (lien direct) | AI audio transcription is getting smarter—and it's taking notes on your work meetings. | |||
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2021-04-15 12:00:00 | Respawn’s Apex Legends Is Just Getting Started (lien direct) | From a surprise launch to a diverse cast, the Titanfall developer's live service game has a lot going for it, and even more coming. | |||
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2021-04-15 12:00:00 | How to Use Smart Lighting to Transform Your Kid’s Bedroom (lien direct) | Is your child scared of the dark? These tech tips can help vanquish the monsters in the closet—or create good vibes for teens. | |||
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2021-04-15 11:00:00 | The Humble Shrub That’s Predicting a Terrible Fire Season (lien direct) | Chamise may not look (or smell) like much, but it's actually a kind of crystal ball for understanding how badly California might burn. | |||
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2021-04-15 11:00:00 | This Coffee Brewer Uses a Vacuum to Make a Delicious Cup (lien direct) | This innovative brewer uses a vacuum pump to filter your coffee, resulting in a cleaner, less bitter cup. | |||
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2021-04-14 22:56:57 | The Biggest Security Threats to the US Are the Hardest to Define (lien direct) | In a Senate briefing, the heads of the major intelligence agencies warned the public about dangers that offer no easy solutions. | |||
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2021-04-14 21:41:11 | The FBI Takes a Drastic Step to Fight China’s Hacking Spree (lien direct) | The agency's approach to protecting vulnerable victims of the recent Hafnium attack manages to be at once controversial and refreshingly restrained. | |||
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2021-04-14 18:49:49 | Help! Am I Oversharing With My Colleagues? (lien direct) | How does a manager strike the balance between honesty and spilling too many secrets? | |||
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2021-04-14 17:30:00 | This WIRED-Approved Heated Massage Gun Is on Sale Now (lien direct) | The SKG F5 is a much more affordable Theragun alternative, and it even adds heat to help relax your tight muscles. It's 40 percent off. | |||
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2021-04-14 13:00:00 | Tonal\'s Home Gym Is Made for Folks Who Want to Get Ripped (lien direct) | In a market dominated by home cardio workout machines, Tonal concentrates on strength-building and muscle toning. | ★★★ | ||
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2021-04-14 13:00:00 | Choices Was the Choose-Your-Own-Adventure Escape I Needed (lien direct) | In the mobile game, I could be anyone I wanted—and my decisions reflected the bolder, braver person I aspired to be. | ★★★ | ||
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2021-04-14 12:00:00 | Brompton’s Folding Ebike Is Stylish but Sluggish (lien direct) | The weak, inefficient electric assist on the company’s classic and compact bike is just dead weight. | |||
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2021-04-14 12:00:00 | Will Future Electric Vehicles Be Powered by Deep-Sea Metals? (lien direct) | Mining companies and marine scientists want to know whether harvesting blobs of useful materials from the seafloor harms ocean life. | APT 32 | ||
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2021-04-14 12:00:00 | Who Let the Doge Out? The Cryptocurrency Is As Nutty As Ever (lien direct) | The much wow Dogecoin has had its notable influencers—including, for a brief moment, me. | |||
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2021-04-14 12:00:00 | Coinbase Makes Its Debut—and Bitcoin Arrives on Wall Street (lien direct) | The largest cryptocurrency exchange goes public through a direct listing, and it could make a bigger debut than Facebook. | |||
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2021-04-14 11:00:00 | Is Silicon Valley Dead? Not According to Venture Dollars (lien direct) | In a record quarter for VC funding, California still takes the cake—further evidence that reports of the region’s demise are greatly exaggerated. | |||
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2021-04-14 11:00:00 | Did This Scorching-Hot Planet Lose—and Regain—an Atmosphere? (lien direct) | A veritable hellscape of an exoplanet is challenging researchers’ assumptions about what types of worlds host atmospheres. | |||
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2021-04-14 11:00:00 | 5 New Family-Friendly Movies and 1 Actually Good One (lien direct) | This year’s Oscar-nominated animated films have a uniformly safe, childish approach to death. But The Willoughbys—not nominated—will mess you up. | |||
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2021-04-14 11:00:00 | The Sonos Roam Is a Fun-Sized Speaker That Boasts Bold Sound (lien direct) | This super-portable gadget is easy to use, supports Alexa or Google Assistant, and works flawlessly at home or anywhere else. | |||
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2021-04-13 17:59:00 | 16 Mother\'s Day Gift Ideas for the Mom You\'ve Been Missing (lien direct) | Brunch may still be out of the question, but you can send your ma the best sweatpants ever made. | |||
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2021-04-13 13:00:00 | Master & Dynamic Is Having a Big Sale on Audio Gear Now (lien direct) | You can get 25 percent off sitewide through April 19. That includes discounts on some of our favorite headphones, earbuds, and speakers. | ★★★★ | ||
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2021-04-13 13:00:00 | Data Brokers Are a Threat to Democracy (lien direct) | Unless the federal government steps up, the unchecked middlemen of surveillance capitalism will continue to harm our civil rights and national security. | Threat | ||
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2021-04-13 12:00:00 | How Many Homes Could You Power With Free Doughnuts? (lien direct) | Should you get a COVID vaccine? Yes, it will protect you AND protect others to help us move past this pandemic so we can get back to a more normal life. But wait! If you get vaccinated, you can also get a doughnut! At least that's the deal that Krispy Kreme Doughnuts is offering. Once you get your vaccine, you get a doughnut. Oh, it's not just one doughnut—it's one doughnut every day. That's a lot of doughnuts. OK, so how about some physics estimations to go along with your tasty doughnut? Let's say that all the Americans that have a COVID vaccine get (and eat) one doughnut a day. Of course eating food gives you energy to do stuff—that's how food works. So, suppose that all these humans eat their doughnut and then use the extra energy to peddle a stationary bike. All of these bikes are then connected to generators so that they feed into the power grid. What kind of power output would this produce? The first thing we need is the number of doughnuts a day. According to the Center for Disease Control (CDC) 63 million Americans have been fully vaccinated so far (as of April 7 2021). Oh, don't worry too much about the numbers—I'm going to do all my calculations in python so that you can change the values if that makes you happy. I'm also going to assume that all these people get their doughnut—every day. Next, I need to know the amount of energy per doughnut. According to Krispy Kreme's site, a plain glazed doughnut is 190 Calories. But what the heck is a Calorie? Well, [the original calorie was created to describe changes in thermal energy for different substance](https://en.wikipedia.org/wiki/Calories. Then, later people used it to measure the amount of chemical energy your body can get from eating food. However, there is a problem. For some reason, all food labels list stuff in Calories—but these are really kilocalories. So, that doughnut has 190,000 calories. I guess it just sounds like it's too big of a number for people to consider eating. There is another unit of energy—the joule. Since this is the preferred unit of energy for physicists, I'm going to use it. To convert between units, 1 calorie is equal to 4.184 joules. But what does this have to do with your everyday life? Let's consider something you might do without too much effort. Suppose you have a textbook on the floor and you pick it up to put it on a table. Since you are exerting a force on the book over some distance, you have to change the gravitational potential energy of that book. The change in gravitational potential energy is equal to the mass of the book (about 1 kilogram) multiplied by the local gravitational field (g = 9.8 N/kg) and then multiplied by the change in height (about 1 meter). This will give a change in energy of about 10 joules. So that gives you a rough feeling for the amount of energy in a joule. But what about power? Power is the rate of energy change. It tells you how fast you use energy. As an equation, it looks like this: defpower In this expression, if ΔE is the change in energy in units of joules and Δt is the time interval in seconds then the power will be in units of watts. We are almost ready to calculate the vaccine doughnut power. We just need one more estimation—the efficiency. When a human eats a doughnut, only some of the chemical energy goes all the way into useful energy. Also, with a stationary bike generator some of the energy the human uses to push the pedals also goes into heating up some of the moving parts. In the end, only a percentage of the energy goes into electrical energy. This percentage is the efficiency. I'm just going to make a rough guess that the process of doughnut eating to electrical energy is 25 percent efficient. That's it. I just need to take the number of doughnuts per day and convert that energy to joules and then divide by the length of a day (in seconds). Oh, and multiply by the efficiency. Here's what I get. Note: t |
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