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找到了英文原版 Mathematics and the Search for Knowledge by Morris Kline(pdf下载)
Another example of where intuition fails involves a young man who has a choice between two jobs. Each offers a starting salary of $ 1800 per year, but the first one would lead to an annual raise at the rate of $200, whereas the second would lead to a semiannual raise at the rate of $50. Which job is preferable? One would think that the answer is obvious. A raise of $200 per year seems better than one that apparently would amount to only $100 per year. But let us do a little
arithmetic and consider what each job offers during successive six month periods. The first job will pay 900, 900, 1000, 1000, 1100, 1100, 1200, 1200. . . . The second job, which provides a semiannual increase of $50, will pay 900, 950, 1000, 1050, 1100, 1150, 1200, 1250. . . .
It is clear from a comparison of these two sets of salaries that the second job brings a better return during the second half of each year and does as well as the first job during the first half. The second job is the better one. With the arithmetic before us it is possible to see more readily why the second job is better. The semiannual increase of $50
means that the salary will be higher at the rate of $50 for six months or at the rate of $100 for the year, because the recipient will get $50 more for each of the six-month periods. Hence two such increases per year amount to an increase at the rate of $200 per year. Thus far the two jobs seem to be equally good. However, on the second job the
increases start after the first six months, whereas on the first job they do not start until after one year has elapsed. Hence the second job will pay more during the latter six months of each year.
A memristor is a pipe that changes diameter with the amount and direction of water that flows through it. If water flows through this pipe in one direction, it expands (becoming less resistive). But send the water in the opposite direction and the pipe shrinks (becoming more resistive). Further, the memristor remembers its diameter when water last went through. Turn off the flow and the diameter of the pipe ”freezes” until the water is turned back on. That freezing property suits memristors brilliantly for computer memory. The ability to indefinitely store resistance values means that a memristor can be used as a nonvolatile memory.
理论的提出是华裔 蔡少棠 Leon O. Chua。一个能同时替代RAM, SSD(Non-volatile memory)和CPU的元器件,这个改变太吓人了。1cm2的平面上可以存Pbit级别的数据。。。还可以进行类似NAND门的逻辑运算。。。可以用来模拟类似大脑神经元突触。。。HP实验室用的是光路,而不是电路。。。。。这简直是唤醒AI的神物啊。。。。
However, free running and parkour are separate, distinct concepts — a distinction which is often missed due to the aesthetic similarities. Parkour as a discipline emphasizes efficiency, whilst free running embodies complete freedom of movement — and includes many acrobatic maneuvers. Although the two are often physically similar, the mindsets of each are vastly different. The founder Sébastien Foucan defines free running as a discipline to self development, following your own way.
This particular scene he is supposed to be proving the Heisenberg Uncertainty Principle to which he adds in the end, "It proves we can't ever really know... what's going on. So it shouldn't bother you. Not being able to figure anything out. Although you will be responsible for this on the mid-term. "
The file contains 16 zipped files, which again contains 16 zipped files, which again contains 16 zipped files, which again contains 16 zipped, which again contains 16 zipped files, which contain 1 file, with the size of 4.3GB.
So, if you extract all files, you will most likely run out of space :-)
16 x 4294967295 = 68.719.476.720 (68GB)
16 x 68719476720 = 1.099.511.627.520 (1TB)
16 x 1099511627520 = 17.592.186.040.320 (17TB)
16 x 17592186040320 = 281.474.976.645.120 (281TB)
16 x 281474976645120 = 4.503.599.626.321.920 (4,5PB)
While Adobe’s Flash products are widely available, this does not mean they are open
其实Safari渲染HTML5 video也是用的Quicktime。这玩意儿比Flash差几条街了,比RealTime插件还万恶。以前IE经常挂掉就是因为这个插件。但是大家习惯性的批评IE,没人批判IE的插件。这个跟IE用Windows Media Player插件硬解codec有个屁的差别。WMA和WMV是破鼓万人锤,为啥就没有人来锤锤Quicktime这废品播放器?Safari挂掉,一定是插件的问题,不用是浏览器自己烂的问题。
Adobe’s Flash products are 100% proprietary. They are only available from Adobe, and Adobe has sole authority as to their future enhancement, pricing, etc. While Adobe’s Flash products are widely available, this does not mean they are open, since they are controlled entirely by Adobe and available only from Adobe. By almost any definition, Flash is a closed system.
Add to this video from Vimeo, Netflix, Facebook, ABC, CBS, CNN, MSNBC, Fox News, ESPN, NPR, Time, The New York Times, The Wall Street Journal, Sports Illustrated, People, National Geographic, and many, many others. iPhone, iPod and iPad users aren’t missing much video.
There are more games and entertainment titles available for iPhone, iPod and iPad than for any other platform in the world.
这个就吹牛不上税了。乔帮主装逼都那么有艺术感。整篇《Thoughts on Flash》最装逼的就算这句话了。
第三个thought
Symantec recently highlighted Flash for having one of the worst security records in 2009. We also know first hand that Flash is the number one reason Macs crash. We have been working with Adobe to fix these problems, but they have persisted for several years now. We don’t want to reduce the reliability and security of our iPhones, iPods and iPads by adding Flash.
Flash was designed for PCs using mice, not for touch screens using fingers. For example, many Flash websites rely on “rollovers”, which pop up menus or other elements when the mouse arrow hovers over a specific spot.
I have an idea. How about you let the iPhone use Flash and let people enable or disable it as they choose? Since it sucks so FUCKING much, people will obviously agree with you and vote with their fingers, and those people who don't can enjoy their phones crashing and burning and having shit battery life and getting fucked up by viruses and all the other maladies you mentioned.