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What else can I help you with?
How does a thermos flask reduce heat loss by radiation?
Vaccum between thermos walls does NOT prevent radiation, however the other forms of heat transfer(convection and conduction) are more or less eliminated. Radiation effect of heat transfer may be reduced by applying a layer of reflective material inside the bootles - to reflect the emmision back inwards.
How do you get a replacement lid for your thermos?
You can contact the manufacturer of the thermos directly to inquire about purchasing a replacement lid. You may also check if the thermos is still under warranty, as some manufacturers may provide replacement parts at no cost. Another option is to search online marketplaces or retail stores that sell replacement thermos parts.
How does the layers of a thermos bottle help keep coffee hot?
A Thermos, or in its generic name a vacuum bottle, keeps hot drinks hot (or cold drinks cold) by not allowing heat to flow out (or in, as the case may be). That sounds like a stupid answer but it's really the heart of the matter. Heat flows from hot surfaces to cold ones, and it can do so by three routes; conduction, convection, and radiation. Conduction is the flow of heat through solids. One example of this is that if you held a nail and put one end of it into a candle flame, the other end would rapidly become too hot to hold, even though it isn't in the flame itself. Convection happens when a fluid, such as water or air, is warmed against a hot surface and then flows around until it touches a colder one, cooling itself and warming the cold surface. Radiation occurs when hot atoms emit infrared radiation. The radiation can then "shine" away"from the object, carrying a bit of heat energy with it, thereby making the hot object that little bit cooler. A vacuum bottle is designed to minimize all three kinds of heat flow. The "guts" of the vacuum bottle is a double-walled container with a vacuum, or in other words no air, between the container's inner wall and outer wall. The inner wall and outer wall don't touch everywhere, only in limited areas such as at the bottle's neck. The inner and outer surfaces are also polished or silver-plated to give them a high shine, like a mirror. Convection could happen if the hot inner shell of the bottle heated air between the two shells, but there is no air between the shells, so that means of heat flow is eliminated. Heat could and does conduct from the inner shell to the outer shell and thus escape, but because the inner and outer shells only touch each other in very small areas this effect is far, far slower than it would be in ordinary containers. Heat does escape as infrared radiation, but a mirror will reflect infrared the same way it will reflect visible light, so most of the infrared that escapes the inner shell is reflected and sent back inside. The effect of this is that heat flow still happens, but it is slowed down enough that it takes many hours for coffee inside a vacuum bottle will finally cool down to room temperature.
Is a vacuum still a vacuum if there are electromagnetic waves in the vacuum?
Yes, a vacuum is still a vacuum if electromagnetic waves are present. A vacuum is an area with no matter in it. We know that matter is anything which has mass and takes up space. Electromagnetic waves have no mass, and certianly take up no space. They're energy.
Are you still able to get a Thermos carafe No 570?
As of my last update in October 2023, the availability of specific products like the Thermos carafe No. 570 can vary by retailer and region. It's best to check online retailers, specialty kitchen stores, or Thermos's official website for the most current availability. If it's not readily available, you may also find similar alternatives or newer models.
How do you spell thermus?
The spelling is "thermos" (still a trademark name Thermos), a vacuum-insulated flask.
Are there still 1908 hoover model o vacuum cleaners around still?
yes there is as i have 1 .
How do you make a vacuum bottle?
Fill it with steam and quickly close the water bottle. You want the bottle to be filled with steam. Next, put it in the freezer. The steam will turn into liquid and so there won't be any air (there still some air.)
How does a thermos flask reduce heat loss by radiation?
Vaccum between thermos walls does NOT prevent radiation, however the other forms of heat transfer(convection and conduction) are more or less eliminated. Radiation effect of heat transfer may be reduced by applying a layer of reflective material inside the bootles - to reflect the emmision back inwards.
What to do to get rid of merky water in swimming pool?
shock it, then 24 hours later brush and vacuum. if still murky, algaecide, maximum dose on bottle.
What did Sir James Dewar use the thermos for?
He didn't. He used a Dewar or vacuum flask. It is used to keep things hotter or colder than the surrounding ambient temperature. He failed to patent the idea and it was subsequently patented by Thermos. Thermos is still a registered trade mark in many countries, though it has been declared generic in the US.
How do you get a replacement lid for your thermos?
You can contact the manufacturer of the thermos directly to inquire about purchasing a replacement lid. You may also check if the thermos is still under warranty, as some manufacturers may provide replacement parts at no cost. Another option is to search online marketplaces or retail stores that sell replacement thermos parts.
Where do I find a Brush roller for a Kenmore Upright Vacuum Model 116.39139990?
Check at sears.com under partsdirect to see if parts are still available for your machine. if not, see if there is a vacuum repair shop in your area and check with them.
How does the layers of a thermos bottle help keep coffee hot?
A Thermos, or in its generic name a vacuum bottle, keeps hot drinks hot (or cold drinks cold) by not allowing heat to flow out (or in, as the case may be). That sounds like a stupid answer but it's really the heart of the matter. Heat flows from hot surfaces to cold ones, and it can do so by three routes; conduction, convection, and radiation. Conduction is the flow of heat through solids. One example of this is that if you held a nail and put one end of it into a candle flame, the other end would rapidly become too hot to hold, even though it isn't in the flame itself. Convection happens when a fluid, such as water or air, is warmed against a hot surface and then flows around until it touches a colder one, cooling itself and warming the cold surface. Radiation occurs when hot atoms emit infrared radiation. The radiation can then "shine" away"from the object, carrying a bit of heat energy with it, thereby making the hot object that little bit cooler. A vacuum bottle is designed to minimize all three kinds of heat flow. The "guts" of the vacuum bottle is a double-walled container with a vacuum, or in other words no air, between the container's inner wall and outer wall. The inner wall and outer wall don't touch everywhere, only in limited areas such as at the bottle's neck. The inner and outer surfaces are also polished or silver-plated to give them a high shine, like a mirror. Convection could happen if the hot inner shell of the bottle heated air between the two shells, but there is no air between the shells, so that means of heat flow is eliminated. Heat could and does conduct from the inner shell to the outer shell and thus escape, but because the inner and outer shells only touch each other in very small areas this effect is far, far slower than it would be in ordinary containers. Heat does escape as infrared radiation, but a mirror will reflect infrared the same way it will reflect visible light, so most of the infrared that escapes the inner shell is reflected and sent back inside. The effect of this is that heat flow still happens, but it is slowed down enough that it takes many hours for coffee inside a vacuum bottle will finally cool down to room temperature.
Is a vacuum still a vacuum if there are electromagnetic waves in the vacuum?
Yes, a vacuum is still a vacuum if electromagnetic waves are present. A vacuum is an area with no matter in it. We know that matter is anything which has mass and takes up space. Electromagnetic waves have no mass, and certianly take up no space. They're energy.
How did people keep hot liquids hot in 1896 when traveling?
The first insulated bottle was likely designed by English scientist Sir James Dewar in 1896. In 1892 Dewar had invented a special flask still in use today and attributed to him by its name. Dewar created his insulated bottle by sealing one bottle inside another and pumping out the air between them. This created a vacuum, which is an effective insulator. Dewar never patented his invention, however. It was German glass-blower Reinhold Burger and his partner Albert Aschenbrenner, who made bottles for Dewar, who decided to market Dewar's invention. Burger and Aschenbrenner held a contest to name Dewar's device. A resident of Munich suggested the name thermos from the Greek word threm, which means hot. Along with Gustav von Paalen, Burger and Aschenbrenner formed a company to manufacture Dewar's invention and called it Thermos GmbH. Paalen, Burger, and Aschenbrenner did not register the now well-known Thermos name until 1906, the same year they met American businessman William B. Walker in Berlin. Walker learned of their invention and obtained exclusive manufacturing and marketing rights to it in the United States. The American Thermos Bottle Company was incorporated on January 31, 1907, in Portland, Maine, and set up production in Brooklyn, New York. The Thermos insulated bottle quickly gained popularity across the United States. Famous users include President Taft; explorers Lieutenant E.H. Shackelt, who took his to the South Pole and Lieutenant Robert E. Peary, who took his to the Arctic; Colonel Roosevelt on an expedition to Mombassa; Richard Harding Davis on a trip to the African Congo; Count Zeppelin, who took his up in his hot air balloon; and the Wright Brothers, who took theirs to the sky as well in the first airplane. Source: http:/www.enotes.com/how-products-encyclopedia/insulated-bottle
Is hadacol still available?
I have a bottle never been opened, no date found on bottle.
