Last night, I observed Saturn with my telescope. However, it is cloudy and I had to quit the photography soon. Here are a couple of photos. Cassini's division is hardly visible. Interestingly, a moon is visible after increasing the exposure! It is right above Saturn. Can you ...
In the first place, let me share two plots. This is Saturn. It is just beautiful. I used my cellphone to take a vedio and stacked hundred of frames to make this plot. A vedio is available on bilibili (see 土星手机实拍 ). This is Sun and you can see the sunspots. I took it ...
At around 5pm, while going to release myself, I sneezed and the pee stopped immediately. This reminds me of momentum conservation. You know both sneeze and pee will make you lose some momentum in the same direction because our nose and urinary system work in the same direction. Th ...
A few days ago, the LHCb collaboration reported an evidence for Lepton Universality Violation (LUV) in the beauty-quark decays B - K l + l - where l represents muon or electron. They measured the ratio of muon to electron to be (more details see their paper ) This ratio i ...
11th Nov. is said to be the last and best day in 2020 to observe Mercury. Because the angular distance between Sun and Mercury is the greatest on this day. I set a reminder at 5:00 am and got up on time. It was very cold in early morning. What's worse. The school gate was lock ...
昨天晚上设了闹钟,凌晨02:30,因为这个时候金星才从东方升起。 凌晨2点半,闹钟准时响起,脑袋还有点不清醒。拿起眼镜和手机,迅速跑上天台。唿,凉爽!瞬间清醒。 金星如约而至,比我想象中小,就在月亮下方。周围有御夫座,双子座,猎户座,白羊座和金牛座。下面的图片都是我用手机拍出来的,也有Star Wa ...