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New York, 2:32 AM
Sun Nov 29
13 posts in the last 24 hours

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  • posts about #cells more →

    So Just How Small Is a Ribosome, Anyways?

    Fly-Powered Gadgets Indulge Your Small-Scale Supervillain Fantasies

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    Dsmvwl  Admin  Promote to frontpage Approve user Ban user ×
    Image of More Awesomer Turtles More Awesomer Turtles
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    you know what's amazing, that current processors (i.e. the i7 and other 45nm cores) are just as small as an HIV virus. #cells
     Reply
    valkilmerisawful promoted this comment More Awesomer Turtles was starred More Awesomer Turtles was unstarred
    Image of valkilmerisawful valkilmerisawful
    10/30/09

    @More Awesomer Turtles: I think "45nm" describes transistor size, which makes the die smaller, overall. That's all I can say without tripping on big words and giving Mr. "Anonymous PC Genius" the opportunity to appear out of nowhere to cut me down like the tallest tree in the woods. #cells
     Reply
    valkilmerisawful was starred valkilmerisawful was unstarred
    Image of mwood10 mwood10
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    This blows your mind in the other direction #cells
     Reply
    valkilmerisawful promoted this comment mwood10 was starred mwood10 was unstarred
    Image of moron moron
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    Too bad it ended with the Carbon atom... I was hoping to get deeper. #cells
     Reply
    valkilmerisawful promoted this comment moron was starred moron was unstarred
    Image of PurpleMonkeyDishwasher: PurpleMonkeyDishwasher:
    10/30/09

    @moron: Quarks? #cells
     Reply
    PurpleMonkeyDishwasher: was starred PurpleMonkeyDishwasher: was unstarred
    Image of valkilmerisawful valkilmerisawful
    10/30/09

    @moron: That'sssss what she said. #cells
     Reply
    valkilmerisawful was starred valkilmerisawful was unstarred
    Image of Andrew Dickerson Andrew Dickerson
    10/30/09


    @PurpleMonkeyDishwasher: : Quarks? #cells
     Reply
    Sticks Calhoun promoted this comment Andrew Dickerson was starred Andrew Dickerson was unstarred
    Image of Darthvinder Darthvinder
    10/31/09

    @moron:

    We're talking organic compounds here, why would we go deeper to something like H or a quark? #cells
     Reply
    Darthvinder was starred Darthvinder was unstarred
    Image of valkilmerisawful valkilmerisawful
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    Dude, awesome. Good find, I'm going to look at this many, many times this morning, and definitely not do much at work. It is a bit difficult for me to start the whole reference scale with 12pt Times New Roman, however, as I am very adamant about using 11pt Arial. 11pt Arial has a much more pleasant appearance, and Times New Roman is inherently wider than fonts in the same class (e.g., Arial, Verdana, Comic Sans MS and Wingdings). I digress, I find the size of chromosomes compared to sperm and cells deceiving as depicted; doesn't seem like they fit inside... #cells
     Reply
    valkilmerisawful was starred valkilmerisawful was unstarred
    Image of Cybrczch Cybrczch
    10/30/09

    @valkilmerisawful: Not sure why you included the egg (it's pretty darn big compared to the chromosome), but since sperm are merely DNA delivery systems, the chromosomes are packed up tight inside them, unlike the one illustrated which has been unpacked to show typical structure. #cells
     Reply
    valkilmerisawful promoted this comment Cybrczch was starred Cybrczch was unstarred
    Image of valkilmerisawful valkilmerisawful
    10/30/09

    @Cybrczch: I'm re-reading my post and I can't find any mention of an "egg". Hmm, I thought the chromosome shown is wound and condensed. So this is unpacked as it would become in metaphase (during mitosis)? Neat how 23 of those suckers fit inside the lil guy. Tell more if you can...

    In other news, if this is all from one guy / girl, he / she is quite fk'ed. What, with the HIV, Rhino and Flu viruses, AND several bacterial infections... #cells
     Reply
    valkilmerisawful was starred valkilmerisawful was unstarred
    Image of donwonton donwonton
    10/30/09

    @valkilmerisawful: Notes

    How can an X chromosome be nearly as big as the head of the sperm cell?

    No, this isn’t a mistake. First, there’s less DNA in a sperm cell than there is in a non-reproductive cell such as a skin cell. Second, the DNA in a sperm cell is super-condensed and compacted into a highly dense form. Third, the head of a sperm cell is almost all nucleus. Most of the cytoplasm has been squeezed out in order to make the sperm an efficient torpedo-like swimming machine.

    The X chromosome is shown here in a condensed state, as it would appear in a cell that’s going through mitosis. It has also been duplicated, so there are actually two identical copies stuck together at their middles. A human sperm cell contains just one copy each of 23 chromosomes.

    A chromosome is made up of genetic material (one long piece of DNA) wrapped around structural support proteins (histones). Histones organize the DNA and keep it from getting tangled, much like thread wrapped around a spool. But they also add a lot of bulk. In a sperm cell, a specialized set of tiny support proteins (protamines) pack the DNA down to about one-sixth the volume of a mitotic chromosome. #cells
     Reply
    valkilmerisawful promoted this comment donwonton was starred donwonton was unstarred
    Image of Sticks Calhoun Sticks Calhoun
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    Hey, how about a spoiler alert? You ruined the ending for me! #cells
     Reply
    Sticks Calhoun was starred Sticks Calhoun was unstarred
    Image of Roybeez Roybeez
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    I thought it was going to end at Brian Lam's penis. #cells
     Reply
    Nick promoted this comment Roybeez was starred Roybeez was unstarred
    Image of Nick Nick
    10/30/09

    @Roybeez: this has to be one of those banhammer posts. has to be. #cells
     Reply
    Nick was starred Nick was unstarred
    Image of Nick Nick
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    is all this viewed in a hat? #cells
     Reply
    Nick was starred Nick was unstarred
    Image of gr8wayn gr8wayn
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    The University of Utah seems to be excellent at fusing new technology with teaching. They also have a great flash app on the web displaying the effects of drugs on the brain [learn.genetics.utah.edu] #cells
     Reply
    Adam Frucci promoted this comment gr8wayn was starred gr8wayn was unstarred
    Image of Gonzalo Oxenford Gonzalo Oxenford
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    Thanks God they use the metric system. #cells
     Reply
    Sticks Calhoun promoted this comment Gonzalo Oxenford was starred Gonzalo Oxenford was unstarred
    Image of Sticks Calhoun Sticks Calhoun
    10/30/09

    @Gonzalo Oxenford: You don't want to convert from picorods to microfeet? #cells
     Reply
    Sticks Calhoun was starred Sticks Calhoun was unstarred
    Image of Gordonium Gordonium
    10/30/09

    In reply to So Just How Small Is a Ribosome, Anyways?
    This is going to be a spiffy tool for biochemistry students everywhere. Professors everywhere are gonna utilize this, if only to kill a couple minutes of lecture time.

    Also, where's the representative midichlorian? #cells
     Reply
    Adam Frucci promoted this comment Gordonium was starred Gordonium was unstarred
    Image of Hello Mister Walrus Hello Mister Walrus
    06/29/09

    In reply to Fly-Powered Gadgets Indulge Your Small-Scale Supervillain Fantasies
    So when I propose a homeless people-powered electricity system for the city, I get thrown out, but now that it's "fly-powered", everybody thinks it's great? I see how it is.
     Reply
    Hello Mister Walrus was starred Hello Mister Walrus was unstarred
    Image of Valnen Valnen
    06/29/09

    In reply to Fly-Powered Gadgets Indulge Your Small-Scale Supervillain Fantasies
    Sounds like something we should invent for our prisoners who receive the death penalty. Finally they could be of some value to society.
     Reply
    Valnen was starred Valnen was unstarred
    Image of Gann Gann
    06/29/09

    @Valnen: I've always wanted to be cremated, and I'm an organ donor. I kinda like the idea of donating the energy created when I'm burned.
     Reply
    Gann was starred Gann was unstarred
    Image of Lukasz Fabis Lukasz Fabis
    06/29/09

    @Valnen:

    Think carefully about the implications of what you're suggesting.


    Then, ask yourself if you'd want to live in that kind of society.

     Reply
    Lukasz Fabis was starred Lukasz Fabis was unstarred
    Image of Hello Mister Walrus Hello Mister Walrus
    06/29/09

    @Lukasz Fabis: Yes, I would.
     Reply
    Hello Mister Walrus was starred Hello Mister Walrus was unstarred
    Image of GitEmSteveDave_DefinesTurgid GitEmSteveDave_DefinesTurgid
    06/29/09

    In reply to Fly-Powered Gadgets Indulge Your Small-Scale Supervillain Fantasies
    I live on a farm with lots of flies and mice. I like the idea of this. I wonder how hard these are to make.
     Reply
    GitEmSteveDave_DefinesTurgid was starred GitEmSteveDave_DefinesTurgid was unstarred
    Image of Jrsy Devil's Advocate® Jrsy Devil's Advocate®
    02/19/09

    In reply to SunCat Solar Batteries: Well That Was Obvious
    I guess they won't be using any batteries like this in the iphone or iPod Touch...
     Reply
    Jrsy Devil's Advocate® was starred Jrsy Devil's Advocate® was unstarred
    Image of Monty Monty
    02/19/09

    In reply to SunCat Solar Batteries: Well That Was Obvious
    This is a fantastic idea for when those solar cells are about a hundred times more powerful than they are today. Put me on the waiting list for the 2108 models.
     Reply
    Monty was starred Monty was unstarred
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