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yet another 3d printed spectrograph

  FIRSTLAST cloudynights DeepSkyDetail
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seestar firmware 3.30 AI enhance

IC1318A butterfly nebula in Cygnus  before: after AI enhance: so star is reduced a bit, nebolosity increased, and more smooth( less contrast) reference atlasofuniverse Achint Thomas

Humanoid robot component list breakdown

  unitree G1 teardown  from baidu site jonver munro  on motortrend moomoo CNP Securities conducted a component-level teardown of Unitree G1 and found its BOM cost to be only RMB 41,600, compared to a selling price of RMB 85,000, resulting in a gross margin of up to 40.7%; the EDU version's gross margin can reach as high as 66.7%. The teardown revealed that its core hardware consists of mature components from supply chains such as Intel, DJI, and Longsys, with no significant barriers in the hardware itself. The true competitive advantage lies in proprietary motion control algorithms. However, the teardown also exposed design limitations: a single-arm load capacity of only 2kg and a battery life of 1-2 hours, making it difficult to enter industrial applications. zhihu Wechat   semianalysis

Z8 pro

  Rthk news From photo, it looks very similar to  Z8 pro on TaoBao And installed 網飛猫 or similar app

Varna necropolis

  Atlantis?

Typhoon Bavi 巴威 202609

Digital typhoon   weather news jp Weather cn Asof 02072026: Twitter  : 850 hPA, and highly indeterminate this moment Polarwx forecast: T Ryanweather Cwa tw 5 jul forecast update

Hole in ozone layer wasn't CFC( chlorofluorocarbon) afterall

TLDR: Carbon Tetrachloride CCl4 (CTC), was major culprit , widely used and released to atmosphere well before CFC  Gizomodo Nature MIT news Reference  Montreal protocol   16th September  ozone layer preservation   day