What's a High Flux LED?
955907
I believe that it means extra bright.
907314
Reference to the Freedman article on Light Brigade is below.  I couldn't find any with the other title or author.  The laser technology have been in development for years.  The second reference is to organic light emitting devices.  Perhaps that is related to what you are talking about.  But until you say something about what fate of what new magnets, I can't directly address your question.\n\nTechnologies this promising usually make it into production unless they hit some technical or financial roadblock, or something better comes along first.
1032872
global dimming is a very worrisome factor. By the turn of the next century we will have more dimwits than at any other time in the history of mankind. Already this phenomenon has become a global concern. So many people's brains are dimming.
1026089
1) the rheostat (that little knob that increases or decreases the light coming from the light source)\n\n2) the iris diaphram (works like the iris of the eye, making bigger or smaller circles for the light to pass through)--this is usually part of the condenser
818868
I suspect this refers to how flourescent light bulbs generate a quasi-continuous spectrum as opposed to the discrete emission lines like other self respecting plasma discharge tubes.  \n\nHere is a website that has several pages on Flourescent Lamps:\n\nhttp://home.howstuffworks.com/fluorescent-lamp.htm\n\nThe first two or three are the ones useful to you.  Also there are several links on the last page under More Great Links that will help you in your researches.  Happy hunting!\n\nBTW: This reeks of an intro science class lab write-up question.  TAs at help desks or profs during office hours can help a great deal more effectively than something like yahoo answers, if you want to truly understand.
248863
It is cheap LED, if it is giving no problem, ignore it. Else give it to HP support centre for correction if it is in warranty period.
473739
Sator, coil, spark plug, killswitch, wiring harness, lights?
396319
A photodiode will allow current to pass proportional the amount of light incident upon it.
114097
casey's last sentence is wrong:\nthe more resistance the slower the flow rate \npressure is determined by voltage\n\njdub says:\n"for example...the higher the voltage, the greater the resistance, and the higher the current, the lower the resistance...etc.."\nshould say_ that a a higher voltage will need a greater resistance to oppose flow in order to keep the current the same, or if you want to raise current you would either raise voltage across given resistance, or lower the resistance at a given voltage.\n\nbrmick says:\nthat air is a better conductor than concrete,\nThis largely depends on the frequency of the source, gases are not generally considered conductive, while concrete which is largely water is a moderate conductor especially if wet or wetted.\nDO this take two light bulbs and wire one of each lamps leads to the other then tie it to its intended source (series) using the remaining leads. check the voltage across the source and between the lamps. Assuming you have two equal size lamps you have {nearly-ignoring impedance} doubled the resistance. and so the current and wattage are cut.
601207
Voltage drops for multiple lighting systems are usually handled by using 277 volt AC. \n\nThe multicore cable is something I have no working knowledge on.  Sorry better to say so than to BS you.
212152
In photometry, luminous flux or luminous power is the measure of the perceived power of light. It differs from radiant flux, the measure of the total power of light emitted, in that luminous flux is adjusted to represent the sensitivity of the human eye.
196785
the answer can vary greatly depending on the type of cell that you are looking for.  High efficiency cells can have outputs more than 10 times that of cheap hobby cells.  The easiest way to find the specs is the website of your supplier, they should quote full efficiencies of all of their products
885826
If you use LEDs with built in resistors, then just add up their voltages.  So two 5-volt resistor LEDs in series will equal 10 volts.  A nine volt battery will easily drive two in series.  It will drive three in series, but they will each be dimmer.  Four in series, dimmer still.  If you use a T1-3/4 style led, be sure the flat end of the LED (cathode) is connected to the (-) of the battery and the round end (anode) to the (+) of the battery.  Otherwise they will not light and may burn out.  The data sheet will show you how much current will flow at certain voltages.  It also gives you the maximum recommended values.\n\nBy the way, you could also briefly connect just one LED across the battery, it would be real bright, but burn out since you are exceeding its limits.\n\nIf your LED does not have a built in resistor, then you will need to provide one.  Otherwise there will not be a current limit and the LEDs will burn out.
1074100
My vote would be for 'light-based' semiconductors (although semiconductor isn't the right word)\n\nThe technical ability to replicate the integrated circuit, such as those used in computers, with devices using light instead of electricity.\n\nBenefits would include lower operational cost, (resistance in electrical circuits wastes energy by creating unwanted heat) and faster switching times due to lack of radio frequency interference being generated that affects nearby circuitry.\n\nJust my $0.02\n\nOuzinki
66618
Howstuffworks compares CRT's with LED Jumbo TV screens.  Worth a check.  Good luck.
742095
Since the impedance of a coil at the 400Hz is higher than it is at 60Hz you can build smaller inductive devices for 400Hz. Weight counts on an airplane. An electric motor or a generator or transformer that produces the same power at a fraction of the weight is a winner when you have to fly it around.\n\nWhy did they pick the exact number 400 I don't know but lately fluorescent lamps are being operated at much higher frequencies so maybe 400 is getting obsolete and will be replaced by a higher frequency too.
291632
go to this link...\nhttp://www.digital-meters.com/Light_Meter_Terms-sp-6.html\nit will give you the answer\nand this one...\nhttp://www.electro-optical.com/whitepapers/candela.htm