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And another factor should be put into consideration is that wasted plastics in developed country actually can be recycled. But low quality plastic produced in developing country us…

Oh, thanks. That simplified R&D cost calculation. $11B for $3.5 m persons in U.S. and 90% successful rate means R&D cost(merge cost) definitely less than $4k per person.

If you are talking about a virus only affect small amount of population, I can understand this marketing strategy. But Hepatitis C. is a virus infects 143 million, which means it e…

Those techniques described here were pioneered by Facebook and Google. Basically they are (automatic) CAPTCHA. I still remember the news articles refering a patent Facebook filed a…

For the first woman, she can try to start a legal action against her former employer, force later to make a late payment for her social security. maybe about 50k-100k CNY for her 5…