Jorge Pullin

20 years with World Scientific's International Journal of Modern Physics D @wspcphymaths @worldscientific

In the year 2000, five years before full numerical simulations became available, we computed with Gaurav, Reinaldo and Richard the gravitational waves produced by a grazing collision of two black holes. Looks like a flower, doesn't it? arxiv.org/pdf/gr-qc/0003003

The weighted stack we built is mounted on the test stand and we are doing fine adjustments of its position using the FARO laser tracker. @LIGOLA

Crew getting together to move the clean room seen in the foreground. For safety reasons a five person team is required. One pushing each leg and a spotter. @LIGOLA

This mural in the city of Córdoba, Argentina depicts a girl looking at the stars. In the star-shaped balloon is a reflection of the Astronomical Observatory of Córdoba, that is 155 years old today.

We disassembled the old weighted stack and wrapped it up in Ameristat for storage. @LIGOLA

Our weighted stack is coming along nicely. @LIGOLA

At the Smithsonian. @LIGOLA – at District of Columbia, USA

The turtles (and fish) of LIGO eating lunch. @LIGOLA

We started building a weighted stack today. This is a dummy structure that takes the place of the active internal seismic isolation system during testing when the suspensions are hung in the test stand in the lab. @LIGOLA

I had a model made from my GPS coordinates of the Petra climb. Race ran clockwise. #petramarathon

We are going to have to vent the vacuum system in a couple of places for repairs. Today it was vent prep, and I was involved in one of its most glamorous aspects. @LIGOLA

Mi niece Viole got mentioned in the competition organized by my alma mater @IBalseiro

A friend of mine sends me this picture he took of me in Vienna in 1996. The "Subject:" line of his email: "The Kaiser and The King" 😀

I devoted a corner of my new office to the Quantum Gravity in the Southern Cone meetings.

I moved into a new office and created a museum of technology. If you zoom in you can read the stories of the devices. Up left, a cartoon magazine I used to read as a kid. In addition to cartoons it included plans for telescopes, rockets and electronic circuits. You can read it here, ahira.com.ar/revistas/lupin/… Up in the middle, my id card of when I was a baby. At the bottom, where the signature is supposed to go, it says "he does not sign yet".

When faced with the last few miles of the Petra race, the two runners next to me and I said almost in unison "you've got to be kidding me"...