DanielR

@danielr-phd.bsky.social

Imaging Physicist substack.com/@danielrphd

Ukraine has systematically targeted russian air defence, and pretty much everyone (including me) predicted that the situation could rapidly change once these defences were sufficiently degraded. The result is still surprising though. This is like watching baby seals being bludgeoned.

🇺🇸Trump: Would you go to Moscow? 😄Zelensky: It's difficult. There are a lot of Ukrainian drones there. 👀Reporter: Will you go to Ukraine? 🇺🇸Trump: I would. I would rather have the war be over.

Ukraine continues to hit electrical infrastructure in Crimea. Unfortunately, it was partially cloudy the night of July 5 but obviously russians are struggling to keep the lights on. The city of Yevpatoriya is dark.

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1. Ukraine has been targeting substations and other infrastructure in Crimea. The NASA Worldview data lets us see the effects on night-time lighting. An image from May 10, 2023 shows there was plenty of lighting (light pollution).

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1. There must be some sort of geolocation award for a video showing the results of a Ukrainian attack on russian trucks. There are two burned trucks along with an air-defence vehicle.

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1. This is a toy drone that looks disconcertingly like interceptor drones seen in Ukraine. Yes, we are aware that this is a toy and not a weapon - at least not a very good weapon. A larger version with different, but off-the-shelf, electronics would be much more capable.

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Let’s talk about Crimea. Because Putin wants you talking about everything else. NATO. Nuclear threats. Belarus. Escalation. Red lines. Anything except the one issue that could become the greatest strategic failure of his entire reign.

While a russian was being chased by a Ukrainian drone, a second drone flys in. Notably, the second drone is controlled using a fibre optic link. There are many such videos showing two drones attacking a single russian soldier with a predictable outcome.

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$350 billion is enough money to buy every active F-16 fighter jet and every active M1 Abrams tank with enough money left over to buy every Black Hawk helicopter, several aircraft carriers and some nuclear submarines. However, the USA sent zero F-16 fighter jets and thirty-one M1 tanks to Ukraine.

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A Ukrainian FP-2 drone nearly collides with another FP-2 drone while flying over a russian air defence system that was destroyed earlier by a Ukrainian FP-2 drone. Ukraine has been quite successful at destroying russian air defences with these drones.

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1. Twenty-three years ago I held a Canon A10 digital camera up to the eyepiece of a cheap 60 mm refracting telescope and pressed the button. This is the photo I captured on that cold winter night. It was far better than I could have ever got using film.

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🇨🇦 Fuelled the car today (March 21, 2026). For USA citizens, this price for regular corresponded to US$4.25 per US gallon. These pump prices have no meaningful effect on my life but higher fuel prices will increase the cost of everything else including food.

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1. Many people have reacted strongly to a video showing production of Shahed-136 (Geran-2) drones by a Chinese company. However, focussing on this company misses the more important aspects.

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