Mastodawn

Standing united as scientists to defend science: Max Planck President Patrick Cramer has written an open letter to the President of Harvard University, Alan M. Garber, expressing his full support to the University & its stance against demands from the Trump administration to change its policies in order to retain federal funding.

Michael Katzmann🐈2d ago

Joe Pawsey and the Founding of Australian Radio Astronomy.

Open access book ...

The eponymous 'Pawsey stub' for matching an unbalanced coaxial cable to a balanced dipole was developed at EMI for the 45MHz Alexandra Palace TV transmitter.

https://link.springer.com/book/10.1007/978-3-031-07916-0

Joe Pawsey and the Founding of Australian Radio Astronomy

This open access book is a biography of Joseph Lade Pawsey, founder of Australian radio astronomy, highlighting also the history of the field.

SpringerLink

Michael Katzmann🐈4d ago

Versatile, cheap and portable USB to GPIB converter ... (using USBTMC)

Nice, it fits on the back of a GPIB plug.

https://github.com/xyphro/UsbGpib

GitHub - xyphro/UsbGpib: Versatile, cheap and portable USB to GPIB converter (USBTMC class based)

Versatile, cheap and portable USB to GPIB converter (USBTMC class based) - xyphro/UsbGpib

GitHub

Michael Katzmann🐈6d ago

Alex@rtnVFRmedia Suffolk UK 6d ago

Apparently this is from #Australia - #electricians who sing on #construction sites have to buy their colleagues in other #trades a slab of beer (24 bottles / cans) as a penalty for doing so.

(in Britain the electricians would be equally bad at spelling as the carpenters)

Michael Katzmann🐈6d ago

Chris Adams 6d ago

3 months into NYC #CongestionPricing: “I spoke to someone who has to deliver merchandise who was saying, ‘It saves so much time.’ … [a 2019 study estimated] the cost of traffic to businesses and individuals was about $20 billion a year in wasted activity. And we’ve already captured some of that — it’s hard to quantify, certainly, but there’s no question that at the macro level, in addition to at the personal level, there’s been a lot of benefit.”
https://www.curbed.com/article/100-dayscongestion-pricing-mta-results.html

How Well Is Congestion Pricing Doing?

One hundred days into congestion pricing, we spoke to an MTA policy-maker to get a little in the weeds on just how well it has been doing.

Curbed

Michael Katzmann🐈6d ago

Show thread

BrianKrebs Apr 15

Probably the last CVE indexed before it goes dark should be CVE-2025-DOGE (critical, local privilege escalation vulnerability that leads to malicious code execution and data exfiltration).

Michael Katzmann🐈6d ago

hackaday 6d ago

Homemade VNA Delivers High-Frequency Performance on a Budget

https://hackaday.com/2025/04/16/homemade-vna-delivers-high-frequency-performance-on-a-budget/

Homemade VNA Delivers High-Frequency Performance On A Budget

With vector network analyzers, the commercial offerings seem to come in two flavors: relatively inexpensive but limited capabilities, and full-featured but scary expensive. There doesn’t seem…

Hackaday

Michael Katzmann🐈Apr 14

Project Gutenberg Apr 14

January 1928: The Dirac equation unifies quantum mechanics and special relativity

A seminal paper by Paul Dirac, who relied on mathematical intuition, laid the foundation for quantum electrodynamics.

By Nyla Husain (from the archives)

https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics

#science #physics #quantummechanics #relativity

Michael Katzmann🐈Apr 12

hackaday Apr 12

Tracing the #!: How the Linux Kernel Handles the Shebang

https://hackaday.com/2025/04/11/tracing-the-how-the-linux-kernel-handles-the-shebang/

Tracing The #!: How The Linux Kernel Handles The Shebang

One of the delights in Bash, zsh, or whichever shell tickles your fancy in your OSS distribution of choice, is the ease of which you can use scripts. These can be shell scripts, or use the Perl, Py…

Hackaday

PGP/GPG Public Key	https://pgp.mit.edu/pks/lookup?op=get&search=0x7759CBE6EFCC8A5F
Amateur Radio	NV3Z / VK2BEA / G4NYV / ex AAR3VK
Github	https://github.com/VK2BEA
Locator	FM18lx