Viewing profile — karlperera
karlperera
HN member- Joined
- Tue, Apr 25, 2023, 7:05 AM UTC
- HN karma
- 176
- Public activity
- 132 items
- HN profile
- View on Hacker News ↗
About karlperera
Founded by Karl Perera, an avid astronomy communicator and technology enthusiast, AstroImagery combines a passion for space with a commitment to clear, engaging storytelling. Karl brings years of experience in science communication, digital media, and education, aiming to inspire curiosity and foster a deeper understanding of our universe.
Recent public activity
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Show HN: I Fixed My Mount Balance Problem with This $15 DIY Trick
Hey HN, I've been struggling with mount balance issues in my astrophotography setup, leading to frustrating tracking errors and wasted imaging time. Instead of buying expensive cou…
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Comment #44754532
This new AI system from UC Riverside and Google can detect manipulations even when faces aren’t visible. By analyzing motion, background, and subtle inconsistencies, it tackles a g…
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Comment #44747743
Into its component molecules. For example, PET plastic (used in bottles) is made of many units of ethylene glycol and terephthalic acid. The enzyme breaks the bonds linking these u…
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Comment #44743755
Researchers at MIT have used AI to design enzymes from scratch that can break down common plastics like PET in just hours at room temperature. This could revolutionize recycling an…
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Show HN: Testing 3 Filters: Tulip Nebula – Which One Works Best?
Hey HN, I recently captured the Tulip Nebula using three different filters (Optolong L-Pro, ZWO Duoband, and No Filter) and put together a video comparing the results. The goal was…
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Comment #44732305
This genome sequencing uncovers unexpected Mesopotamian ancestry, shedding new light on cultural and genetic exchanges in antiquity. It’s a reminder of how interconnected ancient c…
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Comment #44720126
This discovery that newly synthesized DNA remains accessible for hours after replication opens up fascinating possibilities. Targeting this ‘hyperaccessible’ state could allow for …
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Comment #44689176
Thanks for addin gthat, yes absolutely right!
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Comment #44687491
Astronomers have just detected 3I/ATLAS, only the third known interstellar comet to pass through our solar system. Discovered July 1 by the ATLAS survey in Chile, its trajectory co…
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Comment #44681505
Researchers have discovered that the cowpea mosaic virus (from black-eyed peas) can activate the human immune system to attack cancer cells, without infecting human tissue. Unlike …
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Show HN: Stop buying expensive gear, improve your processing skills instead
Hey HN, It's easy to get caught in the trap of thinking the next expensive piece of gear is what's holding your astrophotography back. I've found that the biggest gains often come …
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Comment #44613103
That's a very good question, I believe in the case of telescopes it's to offer them at a cheaper price.
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Comment #44605911
Good to know this as I use a bog standard very basic focuser and do it manually.
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Comment #44605895
No I don't even use a dew heater because it's warm here. I am imaging from Turkey where skies are blue and it does tend to be windy as I'm near the sea.
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Comment #44605875
Tried to keep them as near as possible but not exactly the same no. I still think the differences can be shown comparatively though.
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Comment #44605793
Very true mate. Fortunately, I have a very clear sky and maybe 300 plus days when it's crystal clear. It is a rabbit hole I was warned but didn't listen!
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Comment #44581450
This looks like a huge step forward. Researchers from DeepMind and UCL used AI to find a more accurate 'density functional,' solving a problem that has challenged chemists for deca…
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Comment #44572556
As with most technology there is both a potential for harm and a potential for the positive. Knowledge can be incredibly dangerous in the wrong hands but we can't exactly unlearn t…