Pale Moon 呼籲不要使用 Google 主導的 WebComponents

Pale Moon 官方論壇的公告區「An Open Letter to Web Developers」這邊。

While, as a software developer ourselves, we understand very well that new features are exciting to use and integrate into your work, we ask that you please consider not adopting Google WebComponents in your designs.

話說回來,Pale Moon 用起來有種懷念感,而且比起現在的 Firefox 好用不少,只是上面套件有點少...

NASA 用雷射光傳送「蒙娜麗莎」圖片到月球上...

NASA 用雷射光將灰階「蒙娜麗莎」傳送到月球軌道上的 LOLA (Lunar Orbiter Laser Altimeter,看起來是台描繪地表用的儀器?):「NASA Beams Mona Lisa to Lunar Reconnaissance Orbiter at the Moon」。

Lunar Orbiter Laser Altimeter

傳輸速度是 300bits/sec (這數字讓人真感動 XD),傳送 152x200 的 4096 灰階圖片。這次測試其中一個目的是了解地球大氣層對光訊號的影響,可以看到左邊的 raw data 與右邊靠 2/3 RS code 修正的結果:

To clean up transmission errors introduced by Earth's atmosphere (left), Goddard scientists applied Reed-Solomon error correction (right), which is commonly used in CDs and DVDs. Typical errors include missing pixels (white) and false signals (black). The white stripe indicates a brief period when transmission was paused.

不過好像沒提到用多大台的雷射打到月球上... (雷射砲?)