Pixel 6 X-ray

A radiograph of my new Pixel 6 phone. The Pixel 6 is a big chunky phone with a lot of stuff in it.

X-ray image of a Pixel 6 smartphone
X-ray image of a Pixel 6 smartphone. 80 kV, 1 mAs

This one was acquired using a portable x-ray unit at 80 kV, 1 mAs, and the small focal spot. It’s raised up about 25 cm above the image receptor for a bit of magnification (about 1.3x) and cropped in from the original image.

SpaceX, Starlink, and planets

Managed to catch the SpaceX launch of more Starlink satellites this morning.

Also participating in the show were four planets in the early morning sky: Venus, Jupiter, Mars, and Saturn.

Four planets in the sky.  From lower left to upper right: Venus, Jupiter, Mars, and Saturn
Four planets in the sky. From lower left to upper right: Venus, Jupiter, Mars, and Saturn

A couple minutes or so after the launch, we spotted the Falcon 9 plume.

SpaceX Falcon 9 exhaust plume visible over some houses in the foreground.
SpaceX Falcon 9 exhaust plume

This was shortly after the second stage separation and fairing separation. The two small specks of light close to each other are the two fairing halves. The third speck of light just behind and below the other two is the booster stage on its way back to the barge off the South Carolina coast. The speck of light above the rocket plume is Mars.

Falcon 9 rocket plume.  Faintly visible are the two fairing halves and the first stage booster.  Mars is in the background above the plume.
Falcon 9 rocket plume. Faintly visible are the two fairing halves and the first stage booster. Mars is in the background above the plume.

This shows the fairing halves and first stage booster a little better (lower right). Also visible are Venus and Jupiter in the lower left of the image. The larger blob of light above and to the left of the second stage rocket is just internal reflection of a street light across the street.

Falcon 9 second stage rocket.  Visible in the lower right are the two fairing halves and the first stage booster.  Venus and Jupiter are toward the lower left.
Falcon 9 second stage rocket. Visible in the lower right are the two fairing halves and the first stage booster. Venus and Jupiter are toward the lower left.

Always neat to see a rocket streaking by.

PhD diploma finally on the wall

Finally, after almost a year, my PhD diploma is in a proper frame and is hanging on the wall!

PhD diploma in a nice frame
PhD diploma in a nice frame

The frame came with some interesting mounting hardware. The plastic hangers have a pointy part on the wall side. Insert those into the key hole hangers on the frame side, put the frame up against the wall where you want to hang it, and press against the wall. The pointy part leaves a little dimple in the drywall right where the plastic hangers need to be nailed. Take the plastic hangers off the frame, nail it to the wall where the dimple is, and then hang the frame.

Pretty clever.

PhD diploma hanging on the wall.
PhD diploma hanging on the wall.

Now I have it hanging on the wall above my computer. Looks pretty good there.

First blog post + 18

First blog post was 18 years ago!

Old enough to vote now, if it could.

In Canada, it’s old enough to go hit the bars and have a drink.

3200 posts (including a few of draft posts that will probably never see the light of day).

Post volume has been pretty low over the past few years, but now that I have a tiny bit more free time and more projects to ramble on about, I’ll try to kick that up some.

Whee!

SpaceX Crew2 launch from the house!

Early yesterday morning, we were able to see the Commercial Crew 2 launch from the house.

We were watching the SpaceX live stream of the launch, and at about T+2:20 after lift-off, we spotted a small red light rising up behind some houses. We lost sight of it briefly as it got higher, but then we spotted the exhaust plume from the booster rocket once it got high enough to be illuminated by the rising sun.

Commercial Crew 2 launch seen from the house

The SD card in my phone picked overnight to get corrupted and unmount itself, so all of the pictures from earlier in the launch, including booster separation, didn’t get saved.

The photo below shows the larger plume of the second stage heading off toward the north, with the much smaller plume from the booster stage near the center of the image.

SpaceX Falcon 9 second stage rocket plume.  The exhaust plume from the booster stage is visible just below the center of the image
SpaceX Falcon 9 second stage rocket plume. The exhaust plume from the booster stage is visible just below the center of the image

It was interesting to see the puffs of exhaust as the booster stage made its way to the SpaceX drone ship.

Falcon 9 booster stage
Falcon 9 booster stage returning to the SpaceX drone ship

We were even able to see the booster stage start its landing burn as it landed off the coast.

Falcon 9 booster stage landing just below center
Falcon 9 booster stage heading to the drone ship

Pretty spectacular start to the day. With 11 crew on the ISS now, it’s going to need some more modules.

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