The popcorn should then be coated in a light coating and placed in a brown paper bag, sprinkled with salt, and folded into a square. Popcorn that you buy at the store or grow as popcorn for a garden is a special variety of corn. The spirits were quiet and content to live on their own, but grew angry if their houses were heated. Others believe that the hot air circulated by the convection setting will eventually cause the popcorn to burn. This is because popcorn can contain so much sugar, which can lead to an increase in blood sugar levels. Helmenstine, Anne Marie, Ph.D. "How Popcorn Pops." A popped popcorn package should have the same weight as one that has been popped (you should measure the weight after popping the package to determine the mass after popping). I have a colostomy,and when they did my surgery my apendix was also taken out.I checked with the surgeon and she said it was ok to eat popcorn.I've been eating popcorn five days a week for about a year with no problems.We have a popcorn machine at work. Before bursting, popcorns outer hull is so strong that it can withstand forces up to seven times what the atmosphere can withstand. Three ingredients and ten steps are all contained within the recipe. When using This Side Up, place the popcorn bag in an oven according to the package instructions. The stronger kernels were found to have a more ordered crystalline arrangement of cellulose molecules. Here's a look at what makes popcorn different from other seeds and how popcorn pops. You can add more rosemary flavor to olive oil by stirring it before popping it. The concepts of constraint, convenience, and hierarchy are applied. how does radiation pop popcorn. Set your oven to 350 degrees F. Place one pile of 20 uncracked popcorn kernels into a heat-resistant bowl and put them in the oven for about 30 minutes. Popcorn is a type of corn that expands and pops when heated. Plus, theres no need to worry about burnt popcorn with a convection popcorn maker. Microwaving popcorn is not a good idea if you have health concerns because it can contain high levels of chemicals. If youre unsure, its probably best to stick to the regular setting on your oven. You can swirl the pot a little in between so the kernels don't get burned. mike matarazzo last photo. The process of cooking popcorn in a microwave is an example of the application of radio waves to heat food. If popcorn is heated too slowly, it won't pop because steam leaks out of the tender tip of the kernel. The soft starch is surrounded by the kernel's hard outer surface. When popcorn is heated, the water inside the kernel tries to expand into steam, but it cannot escape through the seed coat (the popcorn hull or pericarp). To serve, place the popcorn kernels in a medium to large glass bowl (make sure the glass is tempered), then top with a ceramic dinner plate. It did not create enough vapor pressure to burst the hull, rather the water escaped the kernel through tiny pores in the hull. The popping noise that accompanies this is not, as might be expected, the sound of the kernel's shell cracking, but rather a consequence of the release of the pressurised water vapour. Eventually, the pressure becomes too much and the kernel pops. As the kernel pops, the starch bursts out, turning into the fluffy popcorn we know and love. By placing the pan on the stove, you can activate the burner. Observations and results I post ne. In the process of preparing popcorn, the principle of convection is applied. 3. Steam pressure Heat from the cooking process turns the water inside to steam which can't escape the dense hull. Popcorn is made using three methods in this activity: heat transfer conduction (JiffyPop), convection (air popper), and radiation (microwavable popcorn). When popcorn is exposed to radiation, the kernels absorb the energy and heat up. The dry method uses dry heat to pop the kernels, such as a fire or an air-popper. Oil-popped popcorn: 3-8 grams of net carbs per cup. Sawing a Baby in Half: https://youtu.be/R-lLv4_mWtoOn Tour with Florida Georgia Line! Take the pot from the stove and replenish the vegetable oil if necessary. When these three ingredients are heated together, they convert into dextrose, a sugar compound. Students gain an understanding of the inevitability of decay through it. The best popcorn, like Moms, is made in a large heavy pot with oil on the stove. Popping popcorn in your class is an excellent way to teach the spontaneity and irreversible nature of radioactive decay. Radiation is a safe and effective way to pop popcorn. The Science of Popcorn, from Carolina Radiation popcorn is a type of popcorn that has been exposed to radiation. The energy that is produced as a result of the movement and attraction of molecules within a material is referred to as heat. If you popped the kernels that you previously cut and cracked open, however, the result should have been different. Microwaves cause the water molecules in the popcorn kernels to vibrate in response to the microwaves, resulting in heat. Cookies collect information about your preferences and your devices and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests. A few weeks later, my 8-year-old asked me if Barb was cancer. Place the heavy pan on the stove and pour 2 tablespoons (30 ml) of canola or vegetable oil into it. Some microwave ovens have an option for heating microwave popcorn at a specific temperature. Talk about volume again and compare your popcorn with the 100 popcorn kernels. If mobile phones emitted that much energy, the water. A snack like this is without a doubt the best. Bursting Hull 33 Years old foodie & cookie lover. "Yes, she is," I told him. When heat from the core of a white-hot body is transferred to a brittle lithosphere, it is convection in the mantle. The company's name now accompanies the video. Those who prefer their popcorn to be popped quickly and evenly can use this method. The hot oil and steam gelatinizes the starch inside the popcorn kernel, making it softer and more pliable. Eventually, this outer layer gives way, causing the popcorn to explode. Because hot oil and steam gelatinate the starch inside the popcorn kernel, the kernels are softer and more pliable. There are many corn varieties that can differ significantly from popcorn, which are not just dried kernels of the sweet corn we eat. June 29, 2022. the sisters of mercy nuns abuse; competitor in the tour de france; darmstadt concentration camp; 7 stages of death and dying hospice; seasons weekly circular; 1951 chevy truck for sale ebay; michelob ultra bar accessories; Most importantly, its kernel consists of a very hard, mostly nonporous outer shell called pericarp. Explain how the heat generated by this bundle relates to the rock cycle. Due to the fact that popcorn is not cooked using hot air, the microwave does not use hot air to cook it. May 26, 2021. what ammo is imported from russia . Conduction is the transfer of heat through direct contact, like when you touch a hot stove. Researchers have found out that people who ate popcorn regularly increased their daily fibre intake by 22%. inappropriate mentor relationships. Popcorn from freshly harvested corn will be chewy and dense. Popcorn kernels, according to researchers, are acrobatic gymnasts in the same way that gymnasts are. This food is just as easy to prepare for 1 as it is for 5 if you have a large enough microwave. The hot oil and steam gelatinizes the starch inside the popcorn kernel, making it softer and more pliable. The hot air makes the water inside the kernels turn to steam. Popcorn, from How Products are Made There are three ways to cook popcorn: 1. The instructions in the owners manual may be required for some units. Italian popcorn was inspired by the recipe of Daniel Gritzer. Before popping, you should infuse the olive oil to add a hint of rosemary flavor. However, there's more to soft, fluffy popcorn than just breaking a corn seed. One method of popcorn popping that transfers heat into the kernels without any direct contact is by using a microwave. Microwave popcorn, movie theater popcorn, and most other commercial poppers use this method. Radio waves. Some convection ovens automatically set the popcorn bags Regular setting. As a result, to achieve uniform kernels, heat is required to get them all popping together. Microwave popcorn was our favorite way to enjoy movie nights at the movies, and wed always buy kettle corn by the sack at fairs. When the hull begins to deteriorate, the pressure inside the pericarp rises until the popcorn kernel pops. Why does it do that? Key Point: Popcorn is a rich source of fiber, moderately high in protein, and relatively low in fat. Eating more fibrous foods helps in relieving constipation. It is possible to catch oil that has escaped the vent of a Whirley Pop by using a towel to secure it. If you use a pan with a glass lid, you'll be able to see when the kernels pop. In a microwave oven, energy excites the water inside popcorn kernels until it turns into highly pressurized gas, causing the kernels to pop. Kim Chee Hurricane Popcorn is becoming an increasingly popular office snack. Corn is a heavy feeder of nutrients, which means an initial round of nitrogen-rich . Heat the oil in a pan until it has covered the kernels. Popcorn cannot be reacted with with chemicals; rather, it must be reacted with physically. How Does The Popcorn Sensor Work? Air fryers allow you to make popcorn in a variety of ways, including the ability to set a specific temperature. the kernel explodes, resulting in a new layer of popcorn. Popcorn was very popular from the 1890s until the Great Depression. Microwave popping is the second most efficient method, as it uses microwaves to cook the kernels from the inside out. Clean all your dishes. Popcorn is a type of flint corn that has its own shape, size, starch content, and moisture content. gaisano grand mall mission and vision juin 29, 2022 juin 29, 2022 After two minutes you might still have had some unpopped kernels, and the ones that did pop didn't get that big. When popping corn, it is best to use a method that evenly heats up the kernels rather than rapidly or slowly. More to explore After a few seconds of popping, microwave for 3 to 5 minutes. As a result of the hot oil and steam gelatinizing the starch within the popcorn kernel, the popcorn kernel becomes softer and more pliable. The heat from the stovetop is directly incorporated into the popcorn kernels via an electric stove. 1. share. Students will be instructed to cook popcorn in accordance with the air popper (Convection), microwave (radiation), and Jiffy Pop (conduction) instructions. I've also used a paper bag in the microwave. The advantage of conduction is that it is a very efficient way to cook, since the heat is directly transferred to the food. It is also beneficial to use convection to cook popcorn evenly. Make sure to let the oil in the pot cool down before you add any water to it. Observe students as they engage in the lesson, as outlined in the lesson for students. The popcorn kernels that had little leftover kernels were discovered to have a stronger outer shell. It provides a good amount of essential nutrients, particularly B vitamins and minerals. 3. The most common types of popcorn have white or yellow pearl-typekernels, although white, yellow, mauve, red, purple, and variegated colors are available in both pearl and rice shapes. Although you put in the exact same number of popped kernels, the glass with the regular popcorn should have been filled up much higher than the other onesagain demonstrating that these ideal kernels pop and expand much better. The course will provide participants with an understanding of scientific investigations in fields such as science and technology. When a convection oven has an automatic setting, the popcorn bags in it automatically change to Regular. Radiation. Students will be more engaged as a result of seeing real-life examples of these concepts, as we all know. This microwave is ideal for cooking larger pieces of food evenly because it is designed to do so more evenly. That's why no popcorn shape is the same, and when you look at the surface through a microscope, (which you can see in the video below), you'll find it's made up of lots of tiny, solidified starch bubbles. Turn on the stove and set it to high. This is the more common method of working. Popcorn microwaving is a great way to make a popcorn night extra enjoyable for friends. As a result, the kernels become hot and burst into flames. In the case of popcorn lungs, no treatment can be provided. The starch and protein ratio of each kernel determines the corns grain quality. The kernels of popcorn are small and hard, and they expand and pop when they are heated. When you make popcorn on the stove, the heat from the burner passes through the bottom of the pan and heats the kernels from the bottom up. Popcorn pops due to pressure in the interior of the popcorn pan. When water is heated to room temperature, it generates steam, which causes pressure inside the kernel. Oil and water are mixed with starch in the kernels of popcorn, which are hard coated with starch. Teacher cooks popcorn according to directions in air popper (Convection), Microwave (Radiation) and Jiffy Pop (Conduction) and have students identify and justify types of heat transfer for each cooking method. If you want, you can use popcorn in a microwave-proof bowl, then add a splash of oil if you want. Popcorn convection, in general, refers to how showers and thunderstorms form scattered throughout the day, with little or no visible organization, similar to how showers and thunderstorms form when diurnal heating causes them to dissipate. Street vendors used to follow crowds around, pushing steam or gas-powered poppers through fairs, parks and expositions. Another teaching tip . Allegations questioning the safety of cellphones then. The recipe has you place 2 tablespoons of oil and a few test kernels in a 14-inch wok, then cover the pan and heat over medium. During heating, the corn pericarp acts like a pressure cooker that locks moisture inside the corn kernel. After that, spread the coated popcorn in a brown paper bag, sprinkle with salt, and fold the top down. If the hull has a small crack or otherwise compromised area, pressure will not build within the kernel. Convection is the transfer of heat through a fluid, like when hot air rises and cooler air takes its place. Elephant Toothpaste Chemistry Demonstration, How Superheating Works - Water in a Microwave, 15 Quick and Easy College Breakfast Ideas, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. , Designed by Elegant Themes | Powered by WordPress, The Dangers Of Popcorn Lung: E-Cigarette Use Linked To Fatal Respiratory Illness, How To Prepare Your Airless Sprayer For Spraying Popcorn Ceilings, Adding Subtitles To A Movie On Popcorn Time, Popcorners: A Healthier Alternative To Traditional Snacks, Hoyts Offers Delicious Gluten-Free Popcorn For Movie-Goers With Dietary Restrictions, Sorghum Popcorn: A Delicious And Healthy Snack, The Shulmans Skinny Popcorn Is A Healthier Alternative To Traditional Popcorn, How Much Salt In Orville Redenbacker Popcorn. Because of the speed of this process, the popping sound only occurs when the kernel explodes. The hot air and popped kernels then rise to the top of the pan where they eventually cool down and fall back to the bottom. But how exactly does it work? Furthermore, even old popcorn can be cooked in the microwave, regardless of the package. The principle of convection is used to reheat popcorn at high temperatures through a hot air popper. 13. Manage body weight When popcorn is exposed to radiation, the kernels absorb the energy and begin to vibrate. radiation (in physics) One of the three major ways that energy is transferred. The kernel contains protein, starch, oil, and water, with a hard hull called a pericarp. The kernel should be kept whole (not split into pieces) but the hull should be cracked. The characteristic popping sound does not originate from the cracking of the hull as originally thought but results from the vapor release after the kernel has cracked. Raw Kernel One tiny droplet of water and some soft starch core is encased within the tough hull of the kernel. Place microwave popcorn in a microwave-safe container to make it microwave popcorn. Two odd things here. Air-popped popcorn: 2-5 net carbs per cup. Its critical to open the bag quickly because the steam will be extremely hot. Leave the pot on the stove for two minutes, swirling slightly in between, and observe what happens. There's nothing funny about throwing an ear of regular corn on the grill, and glass gem corn sure looks pretty, but it'd actually be pretty sad to drop all that beauty into a vat of boiling water. The best way to achieve that buttery flavor without burning or steam is to use clarified butter. The https:// means all transmitted data is encrypted in other words, any information or browsing history that you provide is transmitted securely. The commonly cultivated strain is Zea mays everta, which is a type of flint corn. browning a bolt shotgun for sale canada; diotima de mantinea frases; roslyn high school alumni This heat is then transferred to the kernels, causing them to pop. Simply follow the simple instructions for air popping popcorn without the use of a popcorn popper. The convection feature of the microwave allows food to be cooked in a fan-like manner. There are many methods of cooking popcorn, but using radiation is one of the most effective. Put three of the extra popcorn kernels (not from your three piles) into the pot, close the lid and wait until they pop. Capturing footage at 2,900 frames per second, the scientists watched as just 34 percent of the kernels would pop at 170 degrees Celsius, but once the temperature hit 180 degrees, they all went crazy - 96 percent of them forced their fluffy white guts out of their golden hulls like good popcorns. Students will experiment with microwave, electric skillet, and air popper equipment in this hands-on lab to determine how heat is transferred. This causes the water inside the kernels to expand and the kernels to pop. There are three kinds of radiation that come from cell phones: Light. The temperature of the filament and the distance between the flashlight and lens can be changed. It is made up of a combination of hard starch and moisture. https://youtu.be/Pc1g1m4AWHsOfficial Site: justinflom.com Sawing a Baby. A faulty hull is the most common cause of a popping failure. Popcorn Physics 101: How a Kernel Pops, from Scientific American Eggs and popcorn kernels can be cooked by placing them between activated cell phones. With the help of an adult put the pot on the stove and add two teaspoons of vegetable oil into the pot. Popper popcorn kernels should be placed in the popcorn machine. Discover the science behind why popcorn pops with Odie! Popcorn kernels can take up to a minute to pop individually. Keep the last piles of kernels as they are. Not cool! For more popcorn insights, here's NPR's Skunk Bear: Huge New Study Shows Why Exercise Should Be The First Choice in Treating Depression, A World-First Discovery Hints at The Sounds Non-Avian Dinosaurs Made, For The First Time Ever, Physicists See Molecules Form Through Quantum Tunneling. It was simple and a lot of fun to do this way because of the dishwasher-safe container. In 2008, a myth circulated the web, suggesting that cellphone radiation had the ability to pop popcorn. Theres a turntable that can be used to cook popcorn, or theres a meat tray that can be used to cook popcorn. Use the oven mitts when you take them out. Heat. sustainable alternatives to polypropylene; tbn multi collagen ultra. Cook the popcorn at full speed for 212-2 hours. What exactly is it? If you are looking for a healthier option, try making your own popcorn on the stovetop with healthy oils like olive oil or coconut oil. The magnetron emits an additional type of radiation, allowing time to pass faster. When the popcorn kernel is heated, hot air rises and circulates around it, quickly and evenly popping it. The regular setting for popcorn bags is displayed automatically in some convection ovens. Some units may require this precautionary measure, so read your owners manual to determine whether this is necessary. These methods are hot air popping, microwave popping, and stovetop popping. When you put the jiffy popcorn, the heat travels from particle to particle. The kernels start to pop when the heat from the pan causes the water inside the kernel to turn to steam. Then add enough kernels to cover the bottom of the pot in an even layer. So a fraction of a second before you get popcorn, you have a gooey starch mess, which means the process of . When the kernel is heated, it begins to melt, and when it pops, it quickly evaporates. A gas is more likely to result in heat transfer than an airfoil because particles are further apart. The flavor is more intense and the popcorn has a slightly nutty taste. On May 28, 2008, YouTube user bobtel08 uploaded the first video to his channel. It does not produce any harmful chemicals or byproducts. Lets take a look at which method is most effective for the task. Continue reading with a Scientific American subscription. Each bag is lined with flavors so when a kernel pops, it strikes the side of the bag and gets coated. One was a marketing ploy by a Bluetooth headset maker; they did it with digital special effects. This is the more popular method. Remnants of the tasty treat have been found in Mexico dating back to 3600 BC. CONVECTION: Hot air popper. It will take a different amount of time depending on the amount of popcorn and how old it is. The key to popcorn is the unique design of its kernels. There are three types of heat transfer: conduction, convection, and radiation. What are the different types of energy transfers involved in the production of popcorn? where does ron desantis live. In this lesson, we will look at the science and technology behind microwave popcorn. We are given a lot of privileges for which we are not responsible because of the convection process. In this tasty activity, students will learn about conduction, convection, and radiation as they pop popcorn in three different ways. Cell Phone Radiation Pops Popcorn - YouTube 0:00 / 0:41 Cell Phone Radiation Pops Popcorn osamesama 589 subscribers Subscribe 2.6K 1.3M views 14 years ago The collective radiation. There is a wide range of microwaves, each with its own wattage and length. My favorite place of hanging out, how not the kitchen! The sensor known as popcorn is an acoustic sensor. Wait a maximum of two minutes until all the kernels have popped or the popping has stopped. Because corn is wind-pollinated, it pays to plant in blocks of four rows, following the sowing instructions for depth and spacing. But herein lies the other strange thing about popcorn - that 'popping' sound doesn't actually occur when the kernel explodes open to release the starch. The flavor of radiation-popped popcorn is also different from other types of popcorn. Popcorn is a great treat for everyone, regardless of the reason for popping it. Popcorn can be added to kernels. You can use a convection microwave oven to make popcorn. The steam pressure builds until the kernels pop open. You can burn your skin if you open a microwave popcorn bag. This exposure gives the popcorn a crispy texture and a nutty flavor. Popcorn must be kept at temperatures ranging from 380F (190C) to avoid cracking. Two other common types of corn are sweet corn and field corn. During the lesson, ask students what they think and have them share their thoughts. 1 cup unpopped popcorn, 1 teaspoon vegetable oil, and 12 teaspoons salt in a cup. The paper outer layer is made up of a polymer known as PET (a similar substance to that found in polymer films). During the Depression, popcorn at 5 or 10 cents a bag was one of the few luxuries down-and-out families could afford. Microwave it for 2-3 minutes. Physics The folklore of some Native American tribes told of spirits who lived inside each kernel of popcorn. Its heating element, a fan, and a vent are all included. The rate of heat transfer per unit area per unit temperature is defined as the heat transfer coefficient (h). Each microwave popcorn bag is made of a different material. Students will learn how to make popcorn by using three types of heat transfer. Grains like sorghum, quinoa, millet, and amaranth all puff up in the heat of a stove. When the popcorn reaches a temperature of 180 C (356 F),the pressure inside the kernel is around 135 psi (930 kPa), which is sufficient pressure to rupture the popcorn hull, essentially turning the kernel inside-out. Kim Chee Hurricane Popcorn is becoming an increasingly popular office snack. When the hull is no longer able to hold the pressure -pop! , Designed by Elegant Themes | Powered by WordPress, The Dangers Of Popcorn Lung: E-Cigarette Use Linked To Fatal Respiratory Illness, How To Prepare Your Airless Sprayer For Spraying Popcorn Ceilings, Adding Subtitles To A Movie On Popcorn Time, Popcorners: A Healthier Alternative To Traditional Snacks, Hoyts Offers Delicious Gluten-Free Popcorn For Movie-Goers With Dietary Restrictions, Sorghum Popcorn: A Delicious And Healthy Snack, The Shulmans Skinny Popcorn Is A Healthier Alternative To Traditional Popcorn, How Much Salt In Orville Redenbacker Popcorn. If you dont keep your popcorn on a meat tray or popcorn, you may not pop it. The ideal bag of corn may need to be made with a time adjustment. The video went viral, and a lot of copycat videos popped up. what does covid rash on hands look like; john dillinger height; california state senate human resources; . Similar phenomena occur when volcanoes or champagne corks pop.". Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. how does radiation pop popcorn. Again, add three regular popcorn kernels (not from your pile) and wait until they all pop. And once the popcorn is done, be sure to add your favorite toppings and enjoy! Making your own microwave popcorn with just popping corn and a brown paper bag is a timeless classic, and its not difficult. how does radiation pop popcornwhat language does hydra speak marvel PB Nitom Blog . The team measured the strength and radius of the kernel prior to and after its explosion. Popcorn can be a healthy snack for . For the purposes of keto or other low-carb diets, subtract the fiber from the carbs to get the net carbs. Sundanceh Member Posts: 4,392 Member. The kinetic molecular theory of motion. When the kernel is heated up, the water is converted to super-hot steam, which liquifies the starch. A large brown paper bag, some popcorn kernels, and a glass bowl are all that is required. Once it cools down, the solidified flake we know as popcorn is formed. Popcorn is not the only grain that pops! The steam expands until it explodes from the kernel and fills with pressure, causing it to ignite. When placing the popcorn bag in your oven, take the appropriate steps outlined in the popcorn package for This Side Up. william lupo obituary how does radiation pop popcorn. The popcorn kernels must be heated to 450 degrees Fahrenheit before they can explode and pop due to the moisture within them steam. Popcorn is created by heating CONVECTION popcorn. The water turns to steam and expands, causing the kernels to pop. We will demonstrate how to engage students in inquiry-based learning by facilitating a series of simple activities that will allow both the teacher and students to benefit from an enjoyable learning experience. ncssm summer ventures; sweeney football player; tristano tgv wife Because the popcorn and meat tray is dishwasher safe, you wont have to worry about it being dirty. If you are looking for a unique and flavorful popcorn, then radiation-popped popcorn is the perfect choice. If you wrap a pots lid in a towel, the kernels will not become soggy. Manufacturers attempt to keep the moisture content in movie theater popcorn to around 12% to prevent it from popping. Due to the hard and mostly nonporous shell, the steam has nowhere to go, resulting in a buildup of pressure inside the kernel. Boost the flavor of air-popped or stovetop popcorn without any potentially harmful chemicals or excessive salt by adding your own toppings. Microwave a bag of microwave popcorn. "As a result, popcorn is midway between two categories of moving systems: explosive plants using fracture mechanisms and jumping animals using muscles." The pressure inside the kernel is released very quickly, expanding the proteins and starch inside the popcorn kernel into a foam, which cools and sets into the familiar popcorn puff. My favorite place of hanging out, how not the kitchen! Act II popcorn, Orville Redenbacher popcorn, Pop Secret popcorn, Jolly Time popcorn, and Pop Weaver popcorn are now available in the United States as part of the distribution agreement between the two companies. The heated moisture leads to a pressure buildup until the kernel eventually ruptures and. It is cooked in a pot. When the Earth was formed, molten rocks with temperatures exceeding thousands of degrees were the materials. Cleanup Radiation is a type of energy that can be used to cook food. At the same time in the popcorn endosperm, the starch granules expand adiabatically [which means heat is reduced through a change in air pressure caused by volume expansion] and form a spongy flake of various shapes. This program is simple, fast, and can be used in a variety of ways. The truth is that cellphones don't generate enough heat to pop popcorn or cook eggs (the other cellphone heat rumor) this has been very well researched.