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Damselflies

Damselfiles (demoiselles) are smaller than dragonflies, and when at rest, they fold their wings over their bodies, unlike dragonflies who spread them open and flat. I found a few of them while visiting a creek in East Texas and took some time to do some Macro pictures.

Tiger Swallow tail

Wild life in the city is amazing. Yesterday a Tiger Swallow Tail butterfly graced us with its presence for a few minutes, in the middle of Houston. I took the opportunity to play with the Sony 70-200 f/2.8 and Sony A7RIII and improvised, a few pictures in my front yard, all hand held. In macro,Continue reading “Tiger Swallow tail”

Taking a picture of the most luminous blazar flare ever recorded.

A blazar is an active galactic nucleus with a relativistic jet (a jet composed of ionized matter traveling at nearly the speed of light) directed towards the observer. CTA 102 is a blazar-type quasar discovered in the early 1960s in the constellation Pegasus. It is also one of the two great false alarms in theContinue reading “Taking a picture of the most luminous blazar flare ever recorded.”

Colorizing old black and white pictures with deoldify

I was looking for a cool Machine Learning project, using Python, of course, and either PyTorch or Tensor Flow, since it’s what the cool kids are doing those days. I have also always had an interest in restoration of old pictures, and sometimes colorizing them, which is a very tedious & time consuming project ifContinue reading “Colorizing old black and white pictures with deoldify”


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