196. question of the day
9) today's question, i call it ec cube, electric current in a cube. the question may not be electric current but i just wanted a pun. i don't know how to solve it.
this is an ugly diagram drawn in a matter of minutes on ms paint. the red things are the resistors. every resistors are the same 1 ohm resistor. the wires are arranged in the manner of a cube. calculate the total resistance of the resistors in the diagram.
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187. question of the day: megapixel of a human eye
i just suddenly taught of this question today and finally this is one question which i have an answer for.
8) how many megapixels is a human eye?
ans: 576 megapixels. ooh, thats damn huge.
the explanation's below, taken from
http://www.clarkvision.com/imagedetail/eye-resolution.htmlHow many megapixels equivalent does the eye have?The eye is not a single frame snapshot camera. It is more like a video stream. The eye moves rapidly in small angular amounts and continually updates the image in one's brain to "paint" the detail. We also have two eyes, and our brains combine the signals to increase the resolution further. We also typically move our eyes around the scene to gather more information. Because of these factors, the eye plus brain assembles a higher resolution image than possible with the number of photoreceptors in the retina. So the megapixel equivalent numbers below refer to the spatial detail in an image that would be required to show what the human eye could see when you view a scene.
Based on the above data for the resolution of the human eye, let's try a "small" example first. Consider a view in front of you that is 90 degrees by 90 degrees, like looking through an open window at a scene. The number of pixels would be
90 degrees * 60 arc-minutes/degree * 1/0.3 * 90 * 60 * 1/0.3 = 324,000,000 pixels (324 megapixels).
At any one moment, you actually do not perceive that many pixels, but your eye moves around the scene to see all the detail you want. But the human eye really sees a larger field of view, close to 180 degrees. Let's be conservative and use 120 degrees for the field of view. Then we would see
120 * 120 * 60 * 60 / (0.3 * 0.3) = 576 megapixels.
The full angle of human vision would require even more megapixels. This kind of image detail requires A large format camera to record.
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164. question of the day
7) why is october the 10th month when oct is supposed to be 8? and why is december the 12th month when dec is supposed to be 10?
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120. question of the day: upstairs or downstairs?
6)
harily chua:"when you gone gonecase, you want to go upstairs of downstairs?"
harily chua:"upstairs so boring, everyday fly here fly there."
harily chua:"saddam hussein is in b18 enjoying life. play table soccer, drink wine, women, play chess."
harily chua:"that princess diana go downstairs twice. actually she suppose to be upstairs right. but she complain about it, so i tranfer her to b1. but all the nerds there she say so boring, want to go up. so i transfer her up. but then after a while she still bored, so i transfer her to b18. now she so happy, everyday play chess with saddam."
harily chua:"you know the buddha say before 我不入地狱, 谁入地狱? that means if i don't go to hell, who will want to go to hell?"
harily chua:"actually this depend on your religion lah. if you are christian, you will want to go upstair. if you are buddhist, you will want to go downstair, because it's like sacrifice."datf:"when i die i want to go downstairs."
datf:"im afraid of height. and upstairs very cold."
datf:"and what if upstairs too many people and heaven drop down. then we all die."so when you die, you want to go upstairs or downstairs?
Labels: question
114. question of the day
5) how do you logically interprete "die again tomorrow forever"?
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106. questions of the day / post
4) my 4th question
s of the day, which are extracted from the jokes application. some very interesting questions.
- Who was the first person to look at a cow and say, "I think I’ll squeeze these dangly things here and drink what comes out"?
- If electricity comes from electrons, does morality come from morons?
- If the president were gay, would his husband be the first man?
- If you were a genie and a person asked you this wish, "I wish you would not grant me this wish" what would you do?
- How come popcorn isn’t a vegetable?
- Did Noah have woodpeckers on the ark? If he did, where did he keep them?
- If scientists were ever going to figure out how to travel through time, wouldn’t we now be seeing people from the future?
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ok coming to my post
i, like xujun, has been emotionless to the earthquake in china.
i think thats because ive heard too much of these already. so i was thinking "oooh, thats original..."
so instead of pitying the people when i should be, i spent the time when the news reported about the earthquake, predicting the number of deaths.
and dont blame me for being so unsympathetic cause all these happens to often that i could already tell you what's going to happen during every earthquake.
and regarding xujun's prediction of disaster on august 2011, due to the fact that 911 and the indian ocean earthquake are 39 months apart, and that the indian ocean earthquake and this sichuan earthquake is 39 months apart.
and again i thought "thats interesting..."
interesting indeed... how could you compare 911 and the earthquakes. 911 is man-made disaster while earthquakes are natural disasters. 911 is planned while earthquakes aint. so how could you compare 911 and the earthquakes.
dont come and tell me both are disasters cause disasters occurs very frequently. they are obviously different disasters. so basically you are just saying something like there will be news on august 2011, because there's news on 11 sep 2001, 26 dec 2004, 12 may 2008, because they are 39 months apart each other. so here's a
LAME...
im thinking of revamp my blog a little but im just too lazy to do so.
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98. question of the day
3) how can something be under the sun for a day when the sun is only up for 12 hours a day?
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85. question of the day
2) how much wood would a woodchuck chuck if a woodchuck could chuck wood?
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81. question of the day
1)
assuming that one cycle is "the blackest man on earth marrying the whitest(#FFFFFF) woman on earth, and giving birth to a child half as black as the man."
and that the second cycle is " 'the child half as black as the man' marries his mother, and giving birth to a child half as black as it's father."
how many of the cycles would be needed before the final product, which is the child, would from the naked eye, look as white as the whitest woman on earth?
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