i have a chem test ( im in year 9) and it says we need to know about thermite reactions.wtf are they? and why does it say aluminium and iron oxide? :L help lt;3
thermite reactions are reactions used in joining metal parts,tracks,etcusing molten iron obtained by the reaction between aluminium and iron oxideAl+Fe2O3-Fe+Al2O3 This reaction results in the emission of a large amount of heat due to which Fe melts.This molten iron is used for various application.
High def tvs are just high def tvsThey can just handle a better video signal than a normal DVD player and the normal connections they come withSame with the signal you receive from your TV providerIdeally if you have a HDTV the best possible picture you could watch would be from a blu-ray disc player hooked up via a HDMI cord to your HDTVAs far as I know blu-ray technology is only on disc'sSome dvd players have HDMI connections which is supposed to be better than regular dvd s-video connectionsIt all boils down to having a HDTV with a HDMI cord connecting to a Blu-ray disc playerIf you have all of that and then introduce a cable box with HDMI output then you are top of the line, the best picture that you can get with a HDTV.
In a human answer it is just a new disk capable of holding hd contentIt looks and sounds better than the dvds we all use right now.
