Submitted by Palpatine on Tue, 01/01/2013 - 17:04
I don't understand why the course asks for a self portrait before proper shading techniques. As can be expected, my shading is still crap.
Submitted by Palpatine on Sun, 12/30/2012 - 22:47
Submitted by Palpatine on Sat, 12/29/2012 - 22:55
Just decided that drawing is a nice hobby to have, as it produces some tangible stuff, is relevant to work, and I may actually like it.
Apparently the basic skill is something that one is supposed to get in kindergarten, but I guess there is no way around it.
Just to demonstrate how stupid the first steps sound, attached is my first work, following the lessons here :
Submitted by Palpatine on Thu, 05/24/2012 - 07:25
很多人挑刺说，私有企业算什么新鲜事，难道洛马波音不是私企？
好吧那我就明白的说，SpaceX的重要性不在于私企。之前NASA的承包商，都是和NASA或者空军有说不清楚的关系，家里要养一大堆人，需要专有技术传承，自己造基础设施一代代传下来。所以只有互相兼并公司越来越少，没有新开的道理。这是因为虽然工业基础和技术在极端的专业分工以后达到了太空活动的水平，但是处在极端专业化自然垄断的阶段。
SpaceX是个新入行的公司，基础设施随便造造，人才从公开市场上随便找来（只有10%前NASA雇员），大量使用通用的工业设备和设计能力，和忍民正腐之间的关系只是一个总的固定价格合同没有别的关系了。它的成功说明现在的通用工业技术，基础设施，人才培养已经能够直接支撑空间活动了。进入这个工业部门除了资本以外已经没有门槛了。虽然从数量上来看市场上玩家只多了一个，这个自然垄断已经被粉碎了。至于自行承担设计花费，固定价格合同，以及超低价令即使是勤劳勇敢的中国人民被官僚拖累了以后也不能及，这个都只是粉碎自然垄断的副产品而已。
Submitted by Palpatine on Fri, 10/07/2011 - 23:27
Steve Jobs, the pioneer of the computer as a jail made cool, designed to sever fools from their freedom, has died.
As Chicago Mayor Harold Washington said of the corrupt former Mayor Daley, "I'm not glad he's dead, but I'm glad he's gone." Nobody deserves to have to die - not Jobs, not Mr. Bill, not even people guilty of bigger evils than theirs. But we all deserve the end of Jobs' malign influence on people's computing.
Submitted by Palpatine on Mon, 05/09/2011 - 00:00
This is a paper management system that is light (and easy to change) but with some important features others lack. It is supposed to be used with bibtex only, but should work with anything that eats .bib files.
The database I use is sqlite, but should work with whichever of your choice (require python interface) with minimal change of the code. The database structure is in 'paper_db.sql'.
Submitted by Palpatine on Wed, 02/09/2011 - 00:00
来源于这个
那么已经有人解释得很清楚了， 问题只在这个铁箱到底什么要求.
引入两个常数：
体积模量：水:2.2x10^9 pa
杨氏模量：钢：210x10^9 pa,
Submitted by Palpatine on Tue, 02/08/2011 - 00:00
Submitted by Palpatine on Fri, 12/24/2010 - 00:00
所以圣诞节之前去了Boston. Boston的杭外人真多, 乌龟在MIT, 盾和若干小朋友在BU, 周晟茹小朋友和马睿超在Harvard. 然后正好还同时忽悠来了熊猫, 又遇上小脸公款腐败过程中溜出来. 可惜合照目前不在我手里, 要等BU的小朋友们拿出来.周五晚上到, 和熊猫都住在乌龟那里. 周六早上坐了两站地铁从MIT去Harvard玩.
Boston的地铁很有趣(当然也是最老的). 首先是通票, 只要进地铁站的时候交两块钱, 出来没人管, 所以可以无限换乘, 时间多的时候很有用. 然后有的站连进去的收钱都没地收, 等于白坐, 比如Museum of fine arts那站. 那一站还有个搞笑的地方, 就是号称是轻轨(和上海地铁钻上钻下是一样的), 居然地上部分是不封闭的, 站台旁边就有个交叉路口. 我去的那天还大雪了, 因为交叉路口的铁轨之间是垫起来的, 居然很长一段铁轨都是积满雪的. 它的地铁线路, 也不是光红线绿线就完, 红线和绿线居然都还有分叉. 如果要去的站在分叉之后的话, 坐地铁除了看清站台, 还得看清车上的标记是往哪个岔路去的. 最牛B的一点是, 去机场的银线, 线路和站台都造的和地铁一模一样, 但是居然是辆公交车在地下的隧道里面开来开去...
