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The Periodic Table of Tech

itwbennett writes "From calcium in cameras and germanium in CPUs to selenium in solar cells. Here's a look at how every single element in the periodic table is used in common tech products. For example: Scandium is used in the bulbs in metal halide lamps, which produce a white light source with a high color rendering index that resembles natural sunlight. These lights are often appropriate for the taping of television shows. ... Yttrium helps CRT televisions produce a red color. When used in a compound, it collects energy and passes it to the phosphor. ... Niobium: Lithium niobate is used in mobile phone production, incorporated into surface acoustic wave filters that convert acoustic waves into electrical signals and make smartphone touchscreens work. SAW filters also provide cell signal enhancement, and are used to produce the Apple iPad 2."

12 of 39 comments (clear)

  1. Hindenburg by suso · · Score: 3, Funny

    It would have been so much funnier if they put the Hindenburg on the H tile instead of that car.

  2. Dated history in some cases by ackthpt · · Score: 2

    "Dad, Mom says we used to have television with something in it called a SEE-ARR-TEE. What was one of those?"

    --

    A feeling of having made the same mistake before: Deja Foobar
    1. Re:Dated history in some cases by decipher_saint · · Score: 4, Funny

      Ahh back when television was totally tubular...

      Men were men, women were women and we shot electrons with guns

      --
      crazy dynamite monkey
    2. Re:Dated history in some cases by PopeRatzo · · Score: 2

      Ahh back when television was totally tubular...

      The other day I was describing to my daughter how you used to be able to pull the tubes out of the back of your TV set and walk down to local Walgreens where they had a big tube tester the size of a washing machine and you could buy replacements, then take 'em home and plug them back into the old Sylvania console (blonde wood!).

      Then I had to explain what a vacuum tube was. I tried to think about any that we had in the house and I remembered that my guitar amp has a tubes some that I could show her.

      Man, did I feel ancient. I'm so old I remember horizontal hold knobs.

      --
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  3. Don't forget about Indium by Tator+Tot · · Score: 2

    Indium tin oxide is (was?) one of the primary clear conductive coatings used on LCD screens.

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  4. Nope by Jiro · · Score: 4, Informative

    Here's a look at how every single element in the periodic table is used in common tech products.

    I was wondering which products use astatine, but alas, the Slashdot summary is a lie. They mention it, but only to say it's not used for anything.

    1. Re:Nope by mikael · · Score: 2

      http://en.wikipedia.org/wiki/Astatine

      Elemental astatine has never been viewed, because a mass large enough to be seen (by the naked human eye) would be immediately vaporized by the heat generated by its own radioactivity.

      Sounds like Schrödingerscatium.

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  5. forgot argon by rst123 · · Score: 2

    Probably most of us don't have one in the garage, but argon is very important in MIG / TIG welders, and how much other stuff is made with one of these?

  6. What's Missing from the TFA list by djl4570 · · Score: 3, Insightful

    While interesting, the TFA is missing more content than it contains. Just a few quick oversights that I thought of while skimming the list. Platinium is widely used in sparkplugs. Uranium was used in depression glass as well as pottery and it is the active ingredient in armor piercing DU ammunition. Rhodium is used in electronics where arcing is undesirable.
    I wonder how long before the electric and hybrid cars become a target of theft for the precious metal and rare earth content. Iron doesn't show up at all. Scandium is used to make high strength aluminum alloys. Gallium-Arsenide has a very low internal resistance which made it suitable for high frequency and photo sensitive circuits for years.

  7. Re:Table! by menno_h · · Score: 2

    INTRODUCTION:
    Although I usually ignore trolls, I have decided that this particular trolling deserves a very long rant, to the point of it being an essay. Since this is slashdot, I shalll keep it brief, simple and minimal, mentioning only the unlfoccinaucinihilipilificatable.

    CHAPTER 1: ANONYMOUS COWARD'S POOR UNDERSTANDING OF PHYSICS
    Section 1: on Cathode Ray Tubes

    Instead of shooting electron beams at a periodic table to see what happens

    The effect of firing cathode rays at solid materials is quite easy to predict, although it probably has never been done before. Some electrons would diffract through the paper, while others would collide with the molecules therein, possibly altering the composition thereof slightly.
    Section 2: on the Discovery of the Elements of the Periodic Table

    Those same starving children probably mined the periodic table for you so you could play with it in your lab

    No child is old enough to have mined an undiscovered element, since hafnium is the last element to have been discovered 'in the wild', which was in 1911. Also, periodic tables are printed, not mined.

    CHAPTER 2: SCIENTIFIC DISREGARD OF THE ANONYMOUS COWARD
    Obviously, the Anonymous Coward, hereafter referred to as 'AC', holds science in low regard, as he so rudely denigrates the peridic table by saying

    Who cares about a fucking periodic table

    This monument of scientific knowledge, which has aided many scientists, scholars and technologists most certainly deserves better.

    CHAPTER 3: AC'S ABUSE OF PUNCTUATION
    The sentence

    Who cares about a fucking periodic table.

    should end in a question mark, and I will not even begin to address the grammatical horror of this cluster of words:

    what happens these scientists should be

    CHAPTER 4: AC'S SEXUAL OBSESSION
    The word 'fuck' appears quite frequently in AC's words, whence I have deduced yon poster is obsessed with the coital act. There is absolutely nothing wrong with this, but please do remember that this is not the subject of this discussion.

    CHAPTER 5: AC'S USE OF CONTROVERSIAL TERMS
    The concepts of a first and third world are at best disputable as

    Why am I even spending time on this?

    --
    AccountKiller
  8. Arsenic by jvonk · · Score: 2

    I lost respect for this fluff piece after reading this:

    Though not directly related to any tech product because of its toxicity, arsenic is commonly used in bronzing and pyrotechnics.

    Gallium arsenide has been used for years in cutting edge semiconductor applications. I've heard it referred to as "the semiconductor of the future" in a tongue-in-cheek fashion, due to its high performance which comes at high cost. Essentially, what this implies is that technologies are often prototyped on GaAs but reworked to use silicon semiconductors instead before mass manufacturing.

    Anyway, if they missed GaAs while doing a survey of "tech applications of elements", what else did they miss?

  9. And gallium nitrate? by L.+J.+Beauregard · · Score: 2

    The blue laser diodes are gallium nitride. I would hope they'd know the difference, as it's kind of important to put sodium chloride instead of sodium chlorate on your baked potato.

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