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Embracing State-of-the-art tools and Technologies for Delivery - CONTACT NOW! --- Latest News: A Pause on J&J, Preparation for Booster Shots, and More News: Catch up on the most important updates from this week. | Published Date: Fri, 16 Apr 2021 17:22:43 +0000 **** Archaeologists Unearth a ‘Lost Golden City’ in Egypt: The Luxor finding has been called "the second most important archaeological discovery" since King Tut's tomb. | Published Date: Fri, 16 Apr 2021 13:00:00 +0000 **** What Octopus Dreams Tell Us About the Evolution of Sleep: 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. | Published Date: Fri, 16 Apr 2021 11:00:00 +0000 **** Pausing the J&J Vaccine Was Easy. Unpausing Will Be Hard: 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. | Published Date: Thu, 15 Apr 2021 19:26:14 +0000 **** The Humble Shrub That’s Predicting a Terrible Fire Season: Chamise may not look (or smell) like much, but it's actually a kind of crystal ball for understanding how badly California might burn. | Published Date: Thu, 15 Apr 2021 11:00:00 +0000 **** Will Future Electric Vehicles Be Powered by Deep-Sea Metals?: Mining companies and marine scientists want to know whether harvesting blobs of useful materials from the seafloor harms ocean life. | Published Date: Wed, 14 Apr 2021 12:00:00 +0000 **** Did This Scorching-Hot Planet Lose—and Regain—an Atmosphere?: A veritable hellscape of an exoplanet is challenging researchers’ assumptions about what types of worlds host atmospheres. | Published Date: Wed, 14 Apr 2021 11:00:00 +0000 **** How Many Homes Could You Power With Free Doughnuts?: 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]( 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: this is actual python code. You can see my calculations and even change them if you like. pythonpower You can see that for each human, it's just a measly 2 watts of power. That's around the power output for a smart phone (power values vary based on use). However, once you include all the vaccinated people we get up to 144 Megawatts. In 2019, the average household power was about 1200 watts. That means that you could use all these doughnuts to run 120 thousand homes. Oh, AND you get vaccinated—that's a win. More Great WIRED Stories 📩 The latest on tech, science, and more: Get our newsletters! When the boss of all dating apps met the pandemic Get moving with our favorite fitness apps and services Why covering canals with solar panels is a power move How to keep nearby strangers from sending you files Help! Should I tell my colleagues I’m on the spectrum? 👁️ Explore AI like never before with our new database 🎮 WIRED Games: Get the latest tips, reviews, and more 🏃🏽‍♀️ Want the best tools to get healthy? Check out our Gear team’s picks for the best fitness trackers, running gear (including shoes and socks), and best headphones | Published Date: Tue, 13 Apr 2021 12:00:00 +0000 **** How to Find a Covid-19 Vaccine Appointment in Your Area: Vaccination rollout has been a challenge across the US. These tips should help you figure out when you’re eligible, where to go, and what to expect. | Published Date: Tue, 13 Apr 2021 11:00:00 +0000 **** Plastic Is Falling From the Sky. But Where’s It Coming From?: At any given time, 1,100 tons of microplastic are floating over the western US. New modeling shows the surprising sources of the nefarious pollutant. | Published Date: Tue, 13 Apr 2021 11:00:00 +0000 **** This AI Could Help Wipe Out Colon Cancer: Medtronic's GI Genius, recently cleared by the FDA, will help doctors identify precancerous polyps. | Published Date: Mon, 12 Apr 2021 11:00:00 +0000 **** Pandemic Lockdowns Did Cut Air Pollution—but With a Catch: Studies from all over the globe show short-term improvements in urban air quality, but experts are skeptical about how long they’ll last. | Published Date: Mon, 12 Apr 2021 11:00:00 +0000 **** A ‘Last Hope’ Experiment Finds Evidence for Unknown Particles: Long-awaited news from Fermilab’s Muon g-2 team may resolve a tantalizing conflict between nature and theory. But a separate calculation clouds the picture. | Published Date: Sun, 11 Apr 2021 12:00:00 +0000 **** In Europe, Backlash Heats Up Over Garbage Incinerators: Trash-burning facilities once seemed like a useful way to minimize pollution and generate power. But the EU is withdrawing support over emissions concerns. | Published Date: Sat, 10 Apr 2021 12:00:00 +0000 **** Tracking Variants, New Hot Spots, and More Coronavirus News: Catch up on the most important updates from this week. | Published Date: Fri, 09 Apr 2021 18:00:43 +0000 **** The Thrusters Behind NASA's Mission to the Asteroid Psyche: Hall thrusters have been used in satellites for years. Now, they'll play a crucial role in reaching a metallic asteroid called Psyche. | Published Date: Fri, 09 Apr 2021 13:00:00 +0000 **** Variant Hunters Race to Find New Strains Where Testing Lags: In countries without much sequencing, new versions of the Covid virus can go unnoticed. Scientists across Africa are collaborating to track them down. | Published Date: Fri, 09 Apr 2021 11:00:00 +0000 **** This Sticker Absorbs Sweat—and Might Diagnose Cystic Fibrosis: The device may make it easier to quickly test newborns and could open the door to at-home monitoring. | Published Date: Thu, 08 Apr 2021 11:00:00 +0000 **** How Strong Is King Kong? And Could He Even Stand Up?: In physics, big things are not like small things. Here's what that means for a giant gorilla. | Published Date: Wed, 07 Apr 2021 13:00:00 +0000 **** More Lightning in the Arctic Is Bad News for the Planet: Lightning strikes in the far north could double by 2100. That means more wildfires, which could release massive amounts of planet-warming gas. | Published Date: Wed, 07 Apr 2021 12:00:00 +0000 ****

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