According to Welsh legend, Prince Madoc is believed to have discovered America in 1170 after setting sail from north Wales, over 300 years before Christopher Columbus arrived.
It is being added to the list of standard childhood vaccinations from the start of January, and there will be a catch-up programme for older children.
。同城约会对此有专业解读
What drives this? Am I just bored?
Comparison between error-diffusion dithering in sRGB space and linear RGB space. Left to right: sRGB, linear.