if its conduction or convection, they are both put in the same category. for example - pennies are conduction and convection and aluminum foil is radiation.
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convection is the transfer of heat by the flow of air. Duct tape prevents air from flowing outside of the ducks.
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Conduction is process of mevement, flow or displacement from one place to the other.\n\nBy 'conduction flow through copper wire' you seem to be mixing conduction with missing current.\n\nYou likely want to say conduction of elctricity through copper wire. This means flow of elctricity through copper by way of conduction process.
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Convection, driven by the release of heat from the Earth's mantle.   Like a pot of vegetable soup on the stove.   The vegetables on the surface move around.   Some are subducted and others surface.
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When a temperature gradient exists in a body, there's an energy transfer from the high-temperature region to the low-temperature region . We say that the energy is transfered by Conduction.\n\nyou have Convection when you have a fluid for your heat transfer . Radiation is also another type of heat transfer which happens by energy beams like IR.\n\nAs far as I know, there's no heat transfer phenomena called absorption .
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Heat is transferred by conduction, convection and radiation. In medium-temperature applications radiation would only be a small part of the total, and an opaque material will prevent radiative escape of heat in any case. Conduction and convection are minimized by the structure of a typical insulator in addition to the material properties mentioned in the first answer. Styrofoam, for instance, consists of very thin partitions of styrene plastic which enclose gas-filled bubbles. This means each convection cell or mixing space is small and essentially a small proportion of the total insulation thickness, so you don't have the coldest internal gas mixing with the hottest gas. Conduction is low because gas conducts heat more slowly than a solid. The conduction path through the solid styrene is convoluted and of small thickness, both of which minimize conduction. In houses, fiberglass insulation uses similar principles except that the air spaces are connected. This means a larger convection cell potentially exists, but it is baffled by all the glass strands, so circulation and mixing are much slower and smaller-scale.
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What you are constructing is similar to a "thermocouple".\nA thermocouple works on the principle that in any two dissimilar metals there is a potential (voltage) difference;  Meaning simply, that one has more electrons than the other.  And like water, electrons seek equilibrium. So,  metal "A"can have a positive charge compared to metal "B" but have a negative charge compared to metal"C" because it posses more or less electrons when compared.  This potential difference and electron exchange is called "electrolysis" and will fluctuate with temperature changes.  According to how large your contact surfaces are may determine the tapering off of the potential difference due to equilibrium being reached quickly near the area of contact making it more difficult for electrons further away from this area to cross over. (I am assuming that these metals are not in solution).  \n  FYI.  You can make a thermometer out of these dissimilar metals by changing the temp at point of contact and recording the voltage at different temperatures.
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all the difference is, is that the radioactive material is giving off electromagnetic waves because it has been charged by something that gave off a large amount of magnetic waves, such as the sun... radiation is just another form of heat/energy, and it is just radiating the heat/energy it has gotten, and when it gets rid of the energy, it will stop radiating...and unstable materials, react with other elements, like if u drop lithium in water, boom, because it has not enough valence electrons and is lower on the periodic table, so it tries to bond with others to get/give valance electrons
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Electromagnetic shielding\n\nElectromagnetic shielding is the process of limiting the flow of electromagnetic fields between two locations, by separating them with a barrier made of conductive material. Typically it is applied to enclosures, separating electrical devices from the 'outside world', and to cables, separating wires from the environment the cable runs through. Electromagnetic shielding used to block radiofrequency electromagnetic radiation is also known as RF shielding.\n\nThe shielding can reduce the coupling of radio waves, visible light, electromagnetic fields and electrostatic fields, though not static magnetic fields. (A conductive enclosure used to block electrostatic fields is also known as a Faraday cage.) The amount of reduction depends very much upon the material used, its thickness, and the frequency of the fields of interest.\n\nMaterials used\nTypical materials used for electromagnetic shielding include sheet metal, metal mesh, ionized gas, plasma and aluminum foil. Any holes in the shield or mesh must be significantly smaller than the wavelength of the radiation that is being kept out, or the enclosure will not effectively approximate an unbroken conducting surface.\n\nAnother commonly used shielding method, especially with electronic goods housed in plastic enclosures, is to coat the inside of the enclosure with a metallic ink or similar material. The ink consists of a carrier material loaded with a suitable metal, typically copper or nickel, in the form of very small particulates. It is sprayed on to the enclosure and, once dry, produces a continuous conductive layer of metal, which can be electrically connected to the chassis ground of the equipment, thus providing effective shielding.\n\n\n[edit] Example applications\nOne example is a shielded cable, which has electromagnetic shielding in the form of a wire mesh surrounding an inner core conductor. The shielding impedes the escape of any signal from the core conductor, and also signals from being added to the core conductor. Some cables have two separate concentric screens, one connected at both ends, the other at one end only, to maximise shielding of both electromagnetic and electrostatic fields.\n\nThe door of a microwave oven has a screen built into the glass of the window. From the perspective of microwaves (with wavelengths of 12 cm) this screen finishes a Faraday cage formed by the oven's metal housing. Visible light, with wavelengths ranging between 400nm and 900nm, passes easily between the wires.\n\nRF shielding is also used to prevent access to data stored on RFID chips embedded in various devices, such as biometric passports.\n\n\n[edit] How RF shielding works\nElectromagnetic radiation consists of coupled electric and magnetic fields. The electric field produces forces on the charge carriers (i.e., electrons) within the conductor. As soon as an electric field is applied to the surface of an ideal conductor, it generates a current that causes displacement of charge inside the conductor that cancels the applied field inside, at which point the current stops.\n\nSimilarly, varying magnetic fields generate current vortices that act to cancel the applied magnetic field. (The conductor does not respond to static magnetic fields, so static magnetic fields can penetrate the conductor freely.) The result is that electromagnetic radiation is reflected from the surface of the conductor: internal fields stay inside, and external fields stay outside.\n\nSeveral factors serve to limit the shielding capability of real RF shields. One is that, due to the electrical resistance of the conductor, the excited field does not completely cancel the incident field. Also, most conductors exhibit a ferromagnetic response to low-frequency magnetic fields, so that such fields are not fully attenuated by the conductor. Any holes in the shield force current to flow around them, so that fields passing through the holes do not excite opposing electromagn
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Refer to an electromagnetic spectrum. \nRadiation is emission and propagation and emission of energy in the form of rays or waves (http://dictionary.reference.com/search?q=radiation).\nIn other words as long as waves travel there is radiation.\nThere are two types of radiation, the ionizing (harmful) radiation and the non-ionizing (not harmful) radiation.\nYou can see it in a magnetic spectrum. High frequency and low wavelength are those ionizing radiation. High wavelenth and low frequency are those non-ionizing radiation. Penetration of these waves are dependent on their frequencies. High frequencies are able to tranmsmit objects. \nFrom the magnetic spectrum there are different kinds of waves, (from ionizing to non-ionizing) radiowaves, microwaves, infrared, white light, UV, x-rays, gamma rays cosmic rays. These waves travel in a straight line unless scattered by hitting an object or being blocked or interrupted or you know I mean.\nThat's why astronomers detect radiowaves from the outerspace.\nSo if you asked, how does radiant energy reach earth, is simply because they travelled a striaght line from their source.
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IT could be diamagnetic according to electron configuration from Chemistry. But without specific formula I would say your best bet is e nomagnetic.
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It is tough to answer this question without knowing what the experimental procedure was or what the aluminum foil was used for.  More detail please.
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All the waves you have mentioned, are electomagnetic waves. They differ in their frequency, this means, their energy. Therefore, you cannot have a radio wave the same frequency as a visible wave, its one or the other, the frequency will indicate if its radio, infrared, visible and so on. The differnt frequencies gives them their particular properties. All of them travel at the same speed.
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many materials absorb better at the infrared wavelengths than the shorter wavelengths so the absorbed energy is conserved as heat.  There are materials that absorb shorter wavelengths and convert the energy to heat, such as a microwave oven???  Water absorbs at that frequency (1-2 GHz) and the water molecule resonates.  The vibrational energy is re-emitted as heat due to a Stokes shift.\n\nThe shorter wavelengths are more energetic and more capable of depositing energy that might show up as heat but it depends on the absorption of the material itself.
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Food can be heated at least four different ways in an "oven" and some use more than one way.  The oven may be named for the principle method of heating because of any advantages.\n\nMicrowave ovens use microwaves to agitate the electrons of molecules in the food, especially water.  Conduction is the direct flow of heat from one body to another by contact.  Although an oven may not heat food directly by conduction, the food container (bake pan?) may heat up first then conduct heat into the food.  Food may also be heated in an oven by convection.  Hot gas rises and cool gas falls due to differences in density when the hot gas expands and the gases circulate through the oven by natural or forced convection (perhaps using a fan).  Lastly food may be heated in an oven by radiation of heat similar to the warmth you feel when holding your hand up towards the sun.  Radiation heating occurs because the electrons in the metal oof the heating elements are raised to higher orbits and when they return to rest positions they re-emit the energy (supplied by electricity passing through resistance) as infrared radiation which is electromegnatic like light but of much longer wavelengths.  Food is broiled by close exposure to the hot heating element.\n\nRadiation heating may also be produced using banks of specialy light bulbs (which may grow red) that emit infrared radiation.  When the radiation strikes the object to be heated (paint, etc.) it enters the molecules and agitates the electrons of the materrial increasing vibrations heats the material.\n\nSome colors are more easily heated by infrared radiation than others.  At the extremes, black absorbs almost all radiation and heats up while pure white reflects most radiation and stays cool.  That is why you may stay "cool" in the summer heat wearing light or white clothes (like the desert dwellers).
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F, O, I, and L are all products.\nBecause you are adding them, it does not matter what order you add them in. (i.e., FOIL = FLOI)
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it is very simple, the shells, subshells actually represent energy levels in the atoms. it is just like big building having different storeys and them again the rooms. You can compare storeys as shells, and individual apartments as subshells and the rooms in each apartment as orbitals where we the electrons are revolving
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Reactions can be classified as either exothermic or endothermic.  Exothermic reactions release energy, and cause the surroundings to increase in temperature.  Endothermic reactions absorb energy, and cause the temperature of the surroundings to decrease.