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User: math+nazi

math+nazi's activity in the archive.

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Comments · 10

  1. my suggestions on Learn A New Language · · Score: 1

    French

    German

    Spanish

  2. Passphrase FAQ on Are Strong Passwords All That Strong? · · Score: 2

    Take a look at the Passphrase FAQ. Although it is meant for PGP it has some interesting information that is generally applicable to passwords, among others an estimation formula for the strength of different password types (section 4) and also an interesting scheme how to write down a password ("key splitting", section 6).

  3. Re:No Account Space Agency on Scramjet Test Flight Less Than Successful · · Score: 1

    ...one too many shuttle destroyed and a bunch of people killed. Compare that to traditional rockets - they are the safest vehicle to space today,...

    The just (fortunately) one Shuttle loss does not give you enough statistics to decide which system is more safe.

  4. Re:Huh? on What Formula Would You Tattoo? · · Score: 1

    Obviously it's not binary. It looks like cuneiform.

  5. Re:The big one on What Formula Would You Tattoo? · · Score: 1

    Yes they are common symbols, look:

    e is usually not an energy but the elementary charge e=1,602e-19 C. (C stands for Coulomb, the unit of electric charge)

    C is usually not the speed of light, but stands for a capacity or conductance.

    M is used as symbol for mass, but only if you run out of letters, i.e. you have more than one mass.

    If you use the common symbols you don't have to say what each of them stands for because everybody will know it. If you use uncommon symbols you have to explain what they stand for otherwise you will confuse people.

  6. Re:Several options: on What Formula Would You Tattoo? · · Score: 1

    Can an axiom be true or false ?

  7. Re:The big one on What Formula Would You Tattoo? · · Score: 1

    That would make her really look like a dumbass because this equation is usually written as E=mc^2. Of course you can also write it as X=YZ^2 if you like, but then nobody will recognize it.

  8. Re:I got it... on What Formula Would You Tattoo? · · Score: 1

    almost.

  9. Re:Infinity on What Formula Would You Tattoo? · · Score: 1

    wrong: 1/0 is not defined, it's NOT infinity.

  10. Re:Interesting points on Google Doubles Server Farm · · Score: 2

    - Number of websites are increasing exponentially. So your number of computers or required CPU cycles are increasing exponentially. On the other hand prices per CPU Mhz also decreases exponentially (Moore's law ???). That is the key solution for the scalabbility. At least the problem is not exponential.

    That depends on the actual size of the exponents:
    Say total website size is increasing with time t like exp(a*t) and CPU computing power like exp(b*t) then your CPU number has to develop like exp(a*t)/exp(b*t) = exp((a-b)*t) to keep up.
    So if a>b (i.e. websites grow faster than computer power) you still have an exponential problem, just with a smaller exponent (a-b). Only for a<=b, you win.