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31 January 2008 @ 04:29 pm
30 August 2005 @ 09:27 pm
Haven't updated for quite a while, and thought I'd share:

The squares A and B are the same shades of gray.
21 March 2005 @ 09:01 pm
New layout.


For all of you who know advanced math, what is the negative root of x^3 + x^2 - x + 1 = 0? How do you find it by hand?
Current Mood: contemplativecontemplative
21 March 2005 @ 08:40 pm
A simple cipher:

Niy dpgy! Ejsy ;ohjy yjtpihj upmfrt eomfpe ntrsl?
21 February 2005 @ 07:02 pm
Eh. Sorry for not posting in about half a million years. I'll just post some science bowl questions I made up. They're not too hard. Try to answer the toss-ups within five seconds, and the bonuses within twenty, as per the official rules. Answers will be posted as a comment, as usual.


1. Chemistry Multiple Choice: Which of these molecules is nonpolar?

W) Water
X) Ammonia
Y) Carbon Dioxide
Z) Hydrogen Fluoride


Chemistry Short Answer: At what temperature is the entropy of a pure, perfectly formed crystalline substance zero?


2. Biology Multiple Choice: Which of the following statements about jellyfish is NOT true?

W) Adult jellyfish are composed mainly of water
X) Jellyfish move about using a hydrostatic skeleton
Y) Jellyfish do not reproduce asexually
Z) Jellyfish lack true organ structures


Biology Multiple Choice: Jellyfish are classified in the phylum Cnidaria. Which of these organisms do not belong in the same phylum?

W) Corals
X) Sea anemones
Y) Hydras
Z) Starfish


3. Astronomy Short Answer: Which astronomer discovered Titan in 1655?


Astronomy Short Answer: The most abundant gas in Titan's atmosphere is Nitrogen. What is the second most abundant gas?


4. Computer Science Short Answer: What keyword do all Pascal programs begin with?


Computer Science Multiple Choice: In ASCII, what symbol has the decimal equivalence of 65?

W) Uppercase A
X) Dollar sign
Y) Lowercase e
Z) Backslash


5. Earth Science Short Answer: What is the name of the geological period between the Devonian and the Pennsylvanian?


Earth Science Short Answer: How many times harder is conundrum, hardness 9, than topaz, hardness 8?
27 September 2004 @ 09:26 pm
Hmm, the last entry might have made me seem like one of those people that want to blame the whole world when the smallest of things go wrong. Trust me, I'm not :)

For the problem of the not set amount of time, I used an old USAMTS question.

In ΔABC , AC > BC, CM is the median, and CH is the altitude emanating from C. Determine the measure of angle MCH if angle ACM and angle BCH each have measure 17°.
Current Mood: blahblah
26 August 2004 @ 03:35 pm
What's 9.712 plus .1 minus .2 which everyone ignores?

A: The bronze medal! NOT the gold!

Ok, onto the problem of the day:

What's the meaning of life?
Current Mood: frustratedfrustrated
20 August 2004 @ 10:10 am
Ok, there hasn't been one for about a million years, so here's one:

Without looking it up, what is a hematopoietic progenitor and what does it do?
14 July 2004 @ 09:57 pm
Wow, haven't posted in quite a while. Anyways, this is a good page on paradoxes. Apparently the rabbit-and-tortoise problem earlier in this journal is one of Zeno's paradoxes.

On another note, it's nice to see other people taking interest in this community and becoming members. Feel free to post something :)
22 May 2004 @ 08:06 pm
This problem is similar to the previous one.

There is a hypothetical country/town/region that likes sons better than daughters. It set a law that states each couple has to keep giving birth until there is a son. When they give birth to a son, they stop.

A lot of generations later, what is the population ratio of males to females?