It's well known that Chinese has the 12 Shenxiao ( 生肖 ), whereas for the solar activity is around 11 to 12 years. This year is near the max solar activity( now is year of the Dragon), and cause massive eruptions called CME ( coronal mass eruptions ). When these erupted material reach the Earth, this will cause the electro-magnetic storm. How will this affect our daily lives? Are chinese aware of such solar activities, and therefore set the chinese zodiac as 12 years?
Nowadays, even in low light conditions, digital camera can quality pictures with higher ISO, noise and hot pixels have been gradually reduced. Sony has introduced back illumination process for consumer market. Sony BSI sensors evolved from Exmor to now Exmor RS( stacked) technology. This stacked technology allows further chip size reduction, which has strong demands in smartphone camera market. Digital astrophotography is also benefited from such advances, utilising Back Side Illumination technology Exmor: Within the CMOS sensor, it outputs low-noise digital signals by "on-chip column AD conversion" and "dual noise reduction" to suppress noise in the first half of the process In low light conditions, when a wide aperture is desirable to collect as much light as possible. At apertures wider than f/2.0, back-illuminated Exmor R sensors are significantly more efficient at collecting light than conventional, front-illuminated sensor...
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