by Jonathan Kujawa

A few hours’ drive north of my home is the Laser Interferometer Gravitational-Wave Observatory (LIGO) in Hanford, Washington. LIGO was designed and built to detect gravitational waves. When the LIGO project was started in the 1980s, gravitational waves were a purely theoretical phenomenon predicted by Einstein’s theory of general relativity.
General relativity says that gravity should be understood as the deformation of the geometry of spacetime. If, say, two massive objects, like a pair of black holes, should collide, then this should cause waves to ripple across the universe. With enough care, we just might be able to detect these waves.
This is just the sort of large-scale, curiosity-driven, speculative research that depends on the support of far-sighted government funding agencies [1]. Over the course of several decades, the United States’ National Science Foundation funded many hundreds of researchers to make the pipe dream of gravitational wave detection a reality. In 2015, they succeeded. In my lifetime, we’ve gone from gravitational waves being purely theoretical, to detecting them, to being able to listen to them on our home computer. All thanks to decades of work by numerous researchers funded by the NSF and their home universities.
It so happens that one of those researchers was a friend of mine, Rauha Rakola. We did our undergraduate and graduate degrees at the same universities, me in math and him in physics. Rauha’s PhD thesis developed some of the theoretical and computational physics needed for gravitational wave detection. It took more than a decade from his thesis until gravitational waves were first detected — research is not for the impatient!
If we stopped after detecting a gravitational wave, that would be an impressive feat of engineering and physics, and an important contribution to our understanding of general relativity and the fundamental nature of the universe. But human curiosity and ambition know no bounds. Just as you could imagine using the size and shape of waves lapping at your feet to learn about a large ship that passed by (or an earthquake on a distant continent), we should be able to use gravitational waves to learn something about distant objects. The success of LIGO spawned the new field of gravitational-wave astronomy. Read more »






A South Asian person I dated for a year complained to me one day that I was too Iranian. He said a lot of things I did had that tint and flavor to them. We were eating lunch that I had prepared, which consisted of rice and chicken, and I had a plate of fresh herbs that accompanies most meals in Iran. As he was enjoying his meal, he continued that he had never met someone as still ingrained in their own culture as I was. When I pressed for details, he said things like having pistachios and sweets at home to go with tea, or serving fruit for dessert. The irony of it all is that he loved it when I cooked Persian dishes and enjoyed them when I sent him home with leftovers, and really appreciated the snacks I had in my house to accompany his 5 pm scotch.
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When Representative (now House Speaker) Mike Johnson 



