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markdbullock

Re:Into The Tunnel: The secret life of wind tunnels on Saturday May 24, 2025 @12:32AM (#44078793)
I worked at NASA Ames for seven years on a system which supported wind tunnel tests. For a while my team worked in a cold and noisy computer room under the 80x120 wind tunnel test section. We supported around seven of their large wind tunnels.

We had a PDP-11 system for data acquisition and real time display of data. That sent data to a VAX for data storage and near real time calculations and then to an Evans and Sutherland system for visualization. I worked on the RMS data storage and CLI.

We supported tests on airplanes, helicopters, submarines, space capsules, and even a tractor trailer. Since then I've seen a few tractor trailers on the road with flaps at the rear which help smooth the airflow.

One time our customer found a bug while a test was in progress. A co-worker and I went into the control room next to the test section. We could hear the air roaring and feel the building shaking while we worked on finding the issue. No pressure like that!

Re:The Federal Helium reserve is for sale on Wednesday September 06, 2023 @12:36AM (#37401382)
Costs have ballooned
Re:Yyvette's Bridal on Friday March 10, 2023 @12:43AM (#35090836)
The Netscape link!
Take John Bogle’s advice. Buy a low cost S&P 500 fund from Vanguard, Schwab or Fidelity. You get diversification, low expenses, and low short term capital gains (relevant for taxable accounts).
Re:Adam's Apples on Thursday April 29, 2021 @10:27AM (#26981592)
I tried it this week. Crispy and a little tart. I think slightly sweeter than Braeburn. I had read about it a few years ago.
Re:Ask HN: Most sustainable diet long term? on Sunday April 14, 2019 @05:29PM (#19661816)
After watching the documentary Forks Over Knives and reading The China Study, I switched to a whole food plant based diet two years ago. The experimental, clinical, and epidemiological evidence convinced me of the danger of eating animal products. I dropped 20 pounds without even trying and my weight is stable. I walk for 20 minutes at lunch on weekdays. My cholesterol is under 150. I feel more energetic and my mood is slightly better. I occasionally eat animal products, for example when I eat at my mother’s house.