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stmw

2,508 karmajoined 9 years ago

Submissions

General Radio Company

mitmuseum.mit.edu
1 points·by stmw·4 days ago·1 comments

GAN Lateral Superjunction Schottky Diode

powerelectronicsnews.com
2 points·by stmw·5 days ago·1 comments

Inventor, Mother, Creator: Grace Hopper (2025)

planetmainframe.com
31 points·by stmw·6 days ago·0 comments

The Preemptive Draw and Preemptive Grip in the Cash-in-Transit Sector

gutsgatesguards.wordpress.com
18 points·by stmw·6 days ago·5 comments

The Apple Disk II Controller Card (2021)

bigmessowires.com
92 points·by stmw·12 days ago·27 comments

Stanford's Hoover Inst: "The Wealth Tax: Recipe for Economic Disaster"Lionaire [video]

youtube.com
2 points·by stmw·13 days ago·6 comments

A data race that doesn't compile

corentin-core.github.io
26 points·by stmw·15 days ago·8 comments

Rust Foundation Welcomes OpenAI as Platinum Member

rustfoundation.org
2 points·by stmw·15 days ago·0 comments

NIST Releases Technical Findings on What Caused 2021 Collapse of Miami Surfside

nist.gov
5 points·by stmw·19 days ago·1 comments

The Data Systems Group (DSG) at MIT

dsg.csail.mit.edu
2 points·by stmw·last month·0 comments

Steve Blank: Secret History of Silicon Valley (2008) [video]

youtube.com
3 points·by stmw·2 months ago·0 comments

Who are the Japanese? DNA discovery rewrites history

sciencedaily.com
3 points·by stmw·2 months ago·0 comments

UFerris a Versatile Learner Board for Rust Embedded Beginners

theembeddedrustacean.com
22 points·by stmw·2 months ago·5 comments

Cross-platform Rust: how WhatsApp, Signal etc. are shipping Rust to billions

kerkour.com
1 points·by stmw·2 months ago·0 comments

Why Being Curious and Asking Questions Are Essential in Life [Book]

forbes.com
1 points·by stmw·2 months ago·0 comments

Explorer 1 Overview – first US satellite

nasa.gov
1 points·by stmw·3 months ago·0 comments

Oasis EXtensible Access Control Markup Language TC FAQ

oasis-open.org
1 points·by stmw·3 months ago·0 comments

MIT Radiation Laboratory

ll.mit.edu
43 points·by stmw·3 months ago·9 comments

Berkeley, A Look Back: 75 years ago, Cal dorm housed Army troops

eastbaytimes.com
1 points·by stmw·3 months ago·0 comments

How/why did AMD/ATI fall behind Nvidia? (2015)

forums.anandtech.com
2 points·by stmw·4 months ago·1 comments

comments

stmw
·4 days ago·discuss
"General Radio was founded in Cambridge in 1915 by Melville Eastham and four other investors to manufacture radio measuring instruments and parts. Initially, the company focused on transmitting and receiving components and precision measuring instruments, as well as a few complete receiving sets. ... By 1924, General Radio began its decades of dominance of the high-end instrument market. During the time, the company introduced a host of unique instruments, including the first commercially available oscilloscope. Two products developed in the 1930s found major uses during World War II: the Variac variable autotransformer and the Strobotac, the first commercial strobe light. "
stmw
·4 days ago·discuss
Am I the only one who read this to mean a Urinary Tract Infection has afflicted the latest versions of MacOS and iOS, perhaps some special case of markdown ens--ttification?

But apparently no, it's good news.
stmw
·5 days ago·discuss
"The superjunction (SJ) charge balancing concept has been successfully implemented in silicon (Si) MOSFET power devices. Greater focus is now being placed on improving the performance metrics of wide bandgap (WBG) power devices with this technique. In this article, we summarize initial results that show promise in the application of the SJ structure in a lateral gallium nitride (GaN) Schottky diode."
stmw
·10 days ago·discuss
There are few in the same category, perhaps Widlar or Gilbert for pure analog circuit design, or Bill Atkinson in later Mac software? It's a very short list.
stmw
·10 days ago·discuss
Indeed. I have often wondered why university courses tend to use their own made-up machines to teach this stuff, as opposed to using the Apple II (or some of its near-contemporaries).
stmw
·10 days ago·discuss
Agree, that's why I think it is so interesting - but it's also a rule that works in both directions (hardware->software and software->hardware).

The copy-protection stuff was completely puzzling back when it mattered, but of course makes complete sense now.

I hadn't seen the applesaucefdc.com stuff, that's great.
stmw
·16 days ago·discuss
Not for this data, but in the past, yes - there is persistent pressure to do that for any maker of password managers, be it independent, in-browser or in-OS. (Source: I was a cofounder of a company that made a password manager as part of our product).
stmw
·19 days ago·discuss
“When building structures are designed and built to required codes and standards, they have margins against failure, meaning they should be able to support much more load than they are expected to bear,” said Mitrani-Reiser. “In the case of Champlain Towers South, however, these margins against failure were too narrow from the start.”
stmw
·last month·discuss
This is great! We need something similar for knowledgeconstructiond and several other overly insistent Apple software components.
stmw
·2 months ago·discuss
[dead]
stmw
·2 months ago·discuss
Truly a better time - today we worry about using Rust 'unsafe' too often. They had a smoking room on a hydrogen airship!

/j
stmw
·3 months ago·discuss
Thank you for sharing your story, and I'm so glad it worked out in the end. This story however is also why algorithmic interviews and the supposedly "irrelevant to the real job" programming interviews are not going anywhere soon.

Having done a lot of hiring, it's surprising how many candidates do not actually know how to code despite experience and looking good on paper.
stmw
·3 months ago·discuss
The article includes a link to https://github.com/virtualagc/virtualagc - virtual AGC which is interesting. Although the github repo itself is not new news (see github dates), it's still good news this history is preserved.
stmw
·3 months ago·discuss
^ dang This seems to be a fake user with all prior comments being some variation of the above.
stmw
·3 months ago·discuss
Only thing missing is a SCSI hard drive, it's a shame for the Adapter controller to only have the CDROM connected to it. Perhaps an external SCSI RAID array?
stmw
·3 months ago·discuss
They are indeed excellent, as are other MIT engineering publications of that era.
stmw
·3 months ago·discuss
"The name Radiation Laboratory, or "Rad Lab," was chosen to be intentionally deceptive, creating the perception to those on the outside that the laboratory was working on nuclear physics, a discipline that was seen as too immature to have an impact on the war effort. During the fall of 1940, the Rad Lab sprang to life on the MIT campus, and by December, a primitive two-parabola system had already been emplaced and was undergoing initial testing on the rooftop of Building 6 at MIT.

During the next five years, the Radiation Laboratory made stunning contributions to the development of microwave radar technology in support of the war effort. Inventions included airborne bombing radars, shipboard search radars, harbor and coastal defense radars, gun-laying radars, ground-controlled approach radars for aircraft blind landing, interrogate-friend-or-foe beacon systems, and the long-range navigation (LORAN) system. Some of the most critical contributions of the Radiation Laboratory were the microwave early-warning (MEW) radars, which effectively nullified the V-1 threat to London, and air-to-surface vessel (ASV) radars, which turned the tide on the U-boat threat to Allied shipping. In November 1942, U-boats claimed 117 Allied ships. Less than a year later, in the two-month period of September to October 1943, only 9 Allied ships were sunk, while a total of 25 U-boats were destroyed by aircraft equipped with ASV radars (Buderi, pp. 155–169). "
stmw
·4 months ago·discuss
Sad end of an era - not bc there aren't good reasons for it, but bc there was a lot of good opportunities for shared code and skills between NGINX and k8s with this approach.
stmw
·4 months ago·discuss
Fascinating to read a discussion of these matters 10 years ago.
stmw
·4 months ago·discuss
Agree re: different types of JITs producing wildly different results but don't agree about language semantics - even a Java JIT has to give up speed due to certain seemingly minor language and JVM issues. So both matter - no matter how good of a compiler engineer you are, some semantics are just not optimizable. Indeed, the use of a "trace JITs" is a proof of that.