Archive for the ‘Geek’ Category

Obit watch: September 28, 2020.

Monday, September 28th, 2020

A quick round-up of obits I’ve been meaning to make note of over the past few days.

Michael Lonsdale, actor. He was “Hugo Drax” in “Moonraker”, but he did a whole bunch of other work. Some of it was in “avant-garde” films, but he also played “Lebel” in the original “Day of the Jackel”, “Jean-Pierre” in “Ronin”, and a long list of other work “with a Who’s Who of directors, including Mr. Spielberg, François Truffaut, Orson Welles, Luis Buñuel, Jean-Jacques Annaud, and James Ivory”.

Pierre Troisgros, famous French chef.

The Troisgros brothers eventually took charge of their parent’s restaurant and transformed it into a gastronomic destination, at the cutting edge of the culinary revolution known as la nouvelle cuisine. That style was influenced by the austere finesse of Japanese cooking and known, at its extreme, for tiny portions on huge white plates, a caricature in which the Troisgros brothers never indulged.
Their contribution was to showcase the innate flavors of seasonal ingredients, and to pare down some of the overblown creations buried in thick sauces that had come to represent French haute-cuisine.
It earned them Michelin stars and top ratings from other guides. And it put the restaurant high on the list for tourists starting in the 1970s, many of whom, like safari-goers ticking off the “big five,” went to France mainly to experience its top restaurants, collecting souvenir menus along the way.

The restaurant’s most famous dish was salmon with sorrel sauce (saumon à l’oseille). In the Troisgros kitchen the sauce was not thickened with starch but depended on well-reduced sauce ingredients and a touch of cream. Mr. Boulud pointed out that the dish was cooked in a nonstick pan, noting that Mr. Troisgros was among the first chefs to use one.
Alain Ducasse, the chef and restaurateur who is part of a generation that followed in the footsteps of Mr. Troisgros, Mr. Bocuse and others, said in a statement that the Troisgros brothers had developed the basis for nouvelle cuisine, but that their food was never austere or posed.

Robert Gore, inventor of Gore-Tex.

Mr. Gore’s billion-dollar invention was born out of failure and frustration. In 1969, as head of research and development for W.L. Gore & Associates, the manufacturing company founded by his parents, he was tasked with creating an inexpensive form of plumber’s tape for a client. The tape was made from polytetrafluoroethylene, or PTFE, known commonly by the brand name Teflon.
Mr. Gore sought to make more efficient use of the material by stretching it, not unlike Silly Putty. But each time he heated and stretched a rod of PTFE in his lab, it broke in two.
“Everything I seemed to do worked worse than what we were already doing,” he told the Science History Institute in a short film. “So I decided to give one of these rods a huge stretch, fast — a jerk. I gave it a huge jerk and it stretched 1,000 percent. I was stunned.”

Mr. Gore became president and chief executive of W.L. Gore & Associates in 1976 and pursued new applications for his invention. He would stand in a rainstorm to check garments and footwear for waterproofness, and he filled his home with prototypes. He called the company’s 800 numbers to make sure the customer service was up to par.
“Bob was the guy who made things happen,” Bret Snyder, the chairman of W.L. Gore & Associates and Mr. Gore’s nephew, said in a phone interview. “He had a passion not just for the theoretical, but how the products worked in customers’ hands.”

“What you gonna do when you get out of jail?…” part 181

Sunday, September 27th, 2020

Science Sunday!

The SLAC National Accelerator Laboratory has a YouTube channel. (The SLAC National Accelerator Laboratory was formerly known as the Stanford Linear Accelerator Center, so I guess this is now the Stanford Linear Accelerator Center National Accelerator Laboratory, unless SLAC is now one of those acryonyms that doesn’t stand for anything.)

“Here Be Monsters: Tales of the Hot Universe”.

In this talk, we embark on a remarkable adventure that explores the hottest and most powerful objects in the universe. Our travels take us from the millions of tiny black holes that live in our own galaxy, the Milky Way, to the huge ones lurking at the centers of all massive galaxies. We then explore the gigantic cosmic structures that are clusters of galaxies. These structures contain hundreds to thousands of galaxies, but more importantly a prodigious amount of hot gas heated to a million degrees. We will discuss how the interaction of the gas, the galaxies, and monstrous black holes make these clusters some the most powerful beacons of X-ray light in the cosmos.

Bonus: Here’s a lost art: “The Slide Rule (The “C” and “D” Scales)”.

The Internet of Stupid Things.

Saturday, September 26th, 2020

We have a coffee maker that allows you to make coffee the old fashioned way by pressing a few buttons or via a mobile phone or tablet using an app. The maker operates with Wi-Fi and when unboxed you have to connect it to your network through a companion app on your mobile phone. When turned on for the first time, the coffee maker works in a local mode and it creates its own Wi-Fi network that the hopeful coffee drinker first connects to in order to set up the device.

The protocol that this device speaks has already been documented on the internet by several other researchers. As expected, it’s a simple binary protocol with hardly any encryption, authorization or authentication. Communication with machines takes place on TCP port 2081.

“hardly any encryption, authorization or authentication”. I bet you can guess what happens next. Yes! Hilarity ensues!

We used the unused memory space at the very end of the firmware to create the malicious code. By using the ARM assembler we created ransomware that when triggered renders the coffee maker unusable and asks for ransom, while at the same time turning on the hotbed, water dispensing heating element, permanently and spinning up the grinder, forever, displaying the ransom message and beeping. We thought this would be enough to freak any user out and make it a very stressful experience. The only thing the user can do at that point is unplug the coffee maker from the power socket.

The write-up is much, much longer and more detailed: I’m just trying to hit the high points here.

Bonus:

Even if we were to contact the vendor, we would likely get no response. According to their website, this generation of coffee maker is no longer supported. So users should not expect a fix.

(Hattip: Hacker News on the Twitter.)

“What you gonna do when you get out of jail?…” part 174

Sunday, September 20th, 2020

Science Sunday!

I thought I’d do another assortment today, instead of a single theme.

First up: “Shaping Things to Come”, with Professor Eric Laithwaite of Imperial College London. Professor Laithwaite sounds like an interesting guy: he was one of the pioneers of maglev technology, did a lot of work on electric motors (specifically linear induction motors)…and had some rather eccentric ideas about gyroscopes and moths.

I just love the way this video opens. I don’t know how you could get more British than this.

Bonus: for something a little different, Alan Holden of Bell Labs explains crystals.

2020 is a target rich environment. (Part deux)

Wednesday, September 16th, 2020

It didn’t take long to find something even stupider than “Mean Girls” toaster pastry.

For a mere $1,500 you can have a custom built Wilkinson original that features influencer Bella Delphine. The case is plastered in Delphine’s face. Her alleged mugshot is on the front, LEDs with her glare from inside the case, and the system’s liquid cooling pipes run in and out of a little jar said to contain her bathwater.

In the interest of fairness, note the “said” above:

But it’s not an official jar of Bella Delphine bathwater. “I know it’s disappointing,” Josh Wilkinson, the case’s designer, told Motherboard on the phone. “It’s like 400 bucks on Ebay. The more official reason is that these cooling loops, if it was just normal water they wouldn’t hold up after a while.”
Liquid cooled PCs reduce temperatures of a machine with a liquid that’s a mix of distilled water and additives that prevent corrosion. Using Delphine’s dirty bathwater to cool down a machine is probably hazardous to the machine’s health.

“What you gonna do when you get out of jail?…” part 167

Sunday, September 13th, 2020

Science Sunday!

Here’s something a little off the beaten path for you: “The Story of Dr. Lister”, a 1963 dramatization from Warner-Lambert Pharmaceuticals, about the life of Dr. Joseph Lister.

For those of you who aren’t big medical history buffs, Dr. Lister was one of the pioneers of antiseptic surgery.

Lister promoted the idea of sterile surgery while working at the Glasgow Royal Infirmary. Lister successfully introduced carbolic acid (now known as phenol) to sterilise surgical instruments and to clean wounds.
Applying Louis Pasteur’s advances in microbiology, Lister championed the use of carbolic acid as an antiseptic, so that it became the first widely used antiseptic in surgery. He first suspected it would prove an adequate disinfectant because it was used to ease the stench from fields irrigated with sewage waste. He presumed it was safe because fields treated with carbolic acid produced no apparent ill-effects on the livestock that later grazed upon them.

Bonus: I spent some time trying to find a decent video about Ignaz Semmelweis, but couldn’t. So for a change of pace, please enjoy an Army Air Corps video from 1944 on what is rapidly becoming a lost art: “Celestial Navigation”.

(Yes, even though this is a military training film, I do think understanding the relationship of celestial objects to one’s position on the Earth does count as science.)

“What you gonna do when you get out of jail?…” part 160

Sunday, September 6th, 2020

Science Sunday!

An assortment today. Sort of like a box of chocolates. (I’ll let you decide which one is the “Spring Surprise“.)

A short one: vintage video of the flight of the Gossamer Albatross.

(“Albatross!“)

Somewhat longer: by way of the San Diego Air and Space Museum Archives, a lecture from the “Convair Lecture Series” by George Gamow on “Stellar Evolution”.

This is an interesting oral history from Marvin Stern, who worked at Convair at one time, which touches briefly on the Convair Lecture Series.

For instance, when Edward gave one —. By the way, he wouldn’t give one, I was told. But when I asked him, he did. During his lecture, he made a little mistake. A student asked him a question –- “Oh yes” — and he erased it and he fixed it. Afterwards Edward said, was it all right, do I want him to do it over? I said, “No. Making a little mistake — what have you—having a question — interrupt is almost a pedagogic technique. If I wanted to hire a Hollywood actor, I’d hire a Hollywood actor.”

Longest: “Nuclear Reactor Construction and Operation” from MIT “MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016”.

This is lecture number 16 in the course, but I feel like it is fairly stand-alone. Y’all know how I am about nukes and nuke stuff.

“What you gonna do when you get out of jail?…” part 153

Sunday, August 30th, 2020

Science Sunday!

Today, a compilation of shorter videos for once. First up: yes, it is a TED talk. But it is also James Randi. As I’ve said previously, I consider debunking pseudoscience (including “psychic” frauds) to be legitimately science.

Bonus: from the Periodic Videos channel, a short video on anatoxin-a. Anatoxin-a is also known by another name: “Very Fast Death Factor“.

Bonus #2: from the MIT Science Reporter, “Underwater Photography”. I picked this one because it features another one of my heroes, Harold “Doc” Edgerton.

“What you gonna do when you get out of jail?…” part 148

Tuesday, August 25th, 2020

I’m going long again, I know. I’m sorry. But this is something I’ve actually looked for in the past, and only now just found on the ‘Tube.

One of the non-“Top Gear”/”Grand Tour” series that James May has done is “James May’s Toy Stories“, in which he did interesting things with children’s toys.

For example: launching “Action Man” (the licensed UK knockoff of “G.I. Joe”, which someone describes as “the most derided toy in Britain”) on a rocket to see if he can exceed the speed of sound.

Example #2: build a three mile long slot car track.

Just one more: a Lego house. A Lego full-sized house.

Sadly, the house no longer exists:

An attempt to sell it to the Legoland theme park in Windsor fell apart, after the cost of dismantling and reassembling was judged too expensive. The house could not remain at its site at a vineyard because the space was needed for vines and there was no planning permission. With further attempts unable to prevent it being dismantled on 22 September 2009; the bricks used in it were however donated to charity.

“What you gonna do when you get out of jail?…” part 146

Sunday, August 23rd, 2020

Science Sunday!

This is something I’d vaguely heard of in the past, but only just stumbled across on the ‘Tube.

“Mr. Tompkins In Wonderland”.

Mr. Tompkins in Wonderland is a short educational film from the University of Akron based on the story by George Gamow. The film uses Gamow’s story featuring the titular character Mr. C.J.H. Tompkins to explain the basics of space, time, and relativity.

Bonus video: I could sit here every Sunday and post videos of Richard Feynman from YouTube until the end of time. But I’m going to try to avoid doing that.

This one interests me, though: Feynman responds to the question “Do you think there will ever be a machine that will think like human beings and be more intelligent than human beings?”

I like that statement: “Intelligence is to be defined.”

One more. I’m going to assert something here: pseudoscience is science. At least, when you’re debunking it.

Orson Welles talks about “cold reading“.

“What you gonna do when you get out of jail?…” part 141

Tuesday, August 18th, 2020

If you’re a big WWII buff (especially the kind of WWII buff that watches “12 O’Clock High”) you’ve probably heard of, or heard talk about, the Norden bombsight.

It was an early tachometric design that directly measured the aircraft’s ground speed and direction, which older bombsights could only estimate with lengthy manual procedures. The Norden further improved on older designs by using an analog computer that continuously recalculated the bomb’s impact point based on changing flight conditions, and an autopilot that reacted quickly and accurately to changes in the wind or other effects.
Together, these features promised unprecedented accuracy for daytime bombing from high altitudes. During prewar testing the Norden demonstrated a circular error probable (CEP)[a] of 75 feet (23 m)[b], an astonishing performance for that period. This precision would enable direct attacks on ships, factories, and other point targets. Both the Navy and the USAAF saw it as a means to conduct successful high-altitude bombing. For example, an invasion fleet could be destroyed long before it could reach U.S. shores.
To protect these advantages, the Norden was granted the utmost secrecy well into the war, and was part of a production effort on a similar scale as the Manhattan Project. Carl L. Norden, Inc. ranked 46th among United States corporations in the value of World War II military production contracts. The Norden was not as secret as believed; both the British SABS and German Lotfernrohr 7 worked on similar principles, and details of the Norden had been passed to Germany even before the war started.

In practice, it wasn’t quite that accurate: Wikipedia gives a combat CEP of 1,200 feet.

Faced with these poor results, Curtis LeMay started a series of reforms in an effort to address the problems. In particular, he introduced the “combat box” formation in order to provide maximum defensive firepower by densely packing the bombers. As part of this change, he identified the best bombardiers in his command and assigned them to the lead bomber of each box. Instead of every bomber in the box using their Norden individually, the lead bombardiers were the only ones actively using the Norden, and the rest of the box followed in formation and then dropped their bombs when they saw the lead’s leaving his aircraft.[40] Although this spread the bombs over the area of the combat box, this could still improve accuracy over individual efforts. It also helped stop a problem where various aircraft, all slaved to their autopilots on the same target, would drift into each other. These changes did improve accuracy, which suggests that much of the problem is attributable to the bombardier. However, precision attacks still proved difficult or impossible.

I wonder, if you had told WWII bombardiers at the time that the detailed workings of the Norden bombsight would be available to anyone in the world 73 years later, what would they have thought? Maybe nothing. Who knows?

Bonus video: and here’s how you’d actually use one in combat.

According to Wikipedia, the last use of the Norden bombsight was during the Vietnam War: “The bombsights were used in Operation Igloo White for implanting Air-Delivered Seismic Intrusion Detectors (ADSID) along the Ho Chi Minh Trail.

“What you gonna do when you get out of jail?…” part 139

Sunday, August 16th, 2020

Science Sunday!

I’ve been doing a lot of space history, so I wanted to change things up a bit. And I promised some abstract math, so here you go.

From the Numberphile channel (of which the Computerphile channel is an offshoot): “Hat Problems”.

Come on, you know I had to do that. Okay, bonus videos.

Number 1: “Fermat’s Last Theorem”, with Simon Singh (who as you may recall, wrote a book on FLT).

I actually didn’t know about The Simpsons and Their Mathematical Secrets, and I generally look sideways at these TV tie-in books. But I might take a flyer on that if it shows up used.

(All links are affiliate links.)

Number 2: “The Riemann Hypothesis”.

“What you gonna do when you get out of jail?…” part 137

Friday, August 14th, 2020

Here’s something that’s right at the intersection of military history, computer science, and general geekery.

By way of the Computerphile channel, “Turing’s Engima Problem”. This explains how the Enigma machine worked, and the problems Turing et al faced in breaking it.

This is a little long, but neatly divided into two parts. Part 1:

And part 2:

I think for Science Sunday we’re going to see some more abstract math from a related YouTube channel, so stay tuned.

Obit watch: August 12, 2020.

Wednesday, August 12th, 2020

Joan Feynman, noted astrophysicist. She was 93.

Over the course of her career, Feynman made many breakthroughs in furthering the understanding of solar wind and its interaction with the Earth’s magnetosphere, a region in space where the planetary magnetic field deflects charged particles from the sun. As author or co-author of more than 185 papers, Feynman’s research accomplishments range from discovering the shape of the Earth’s magnetosphere and identifying the origin of auroras to creating statistical models to predict the number of high-energy particles that would collide with spacecraft over time. In 1974, she would become the first woman ever elected as an officer of the American Geophysical Union, and in 2000 she was awarded NASA’s Exceptional Scientific Achievement Medal.

“Joan Feynman made important contributions to physics,” said APS President Philip Bucksbaum. “Her work on solar wind and the earth’s magnetosphere led to the discovery of the cause of auroras. She also developed a method to predict sunspot cycles. Her efforts in the geophysics community for fair treatment of women, together with her own example as a leader in solar physics, helped to change society’s attitudes in the mid-20th century about the contributions that women can make in physics.”

In 1971, Feynman accepted a job at the NASA Ames Research Center, where she developed a way to detect solar coronal mass ejections from the sun by searching for the presence of helium in solar wind. She would go on to hold positions at the High Altitude Observatory at the National Center for Atmospheric Research in Boulder, Colorado; the National Science Foundation; and Boston College. In 1985, Feynman accepted a position at the Jet Propulsion Laboratory (JPL) in Pasadena, California, where she would conduct research until her retirement.
As part of her research at JPL, Feynman identified the mechanism that leads to the formation of auroras and developed a statistical model to determine the number of high-energy particles expelled from coronal mass injections that would hit a spacecraft during its lifetime. After her retirement from a senior scientist position in 2003, Feynman continued to conduct research on the impact of solar activity on the early climate of the Earth and the role of climate stabilization in the development of agriculture.
“Joan Feynman leaves a legacy of exemplary scientific research, having made important contributions to our understanding of the solar wind, the earth’s magnetosphere, and the origin of auroras,” said APS CEO Kate Kirby. “Despite being discouraged to pursue science by women in her family, she persevered, and her accomplishments serve as an inspiration to women who wish to pursue a career in science.”

For the record, she was Richard Feynman’s younger sister. There’s a story:

Her pioneering work on these processes led to an understanding of the mechanism responsible for auroras. She found this work wonderful, and her immediate reaction was to tell her brother, who’d first introduced her to these beautiful phenomena all those years before.
But then a second thought crossed her mind. “Richard is pretty smart, and if I tell him about an interesting problem, he’ll find the answer before I do and take all the fun out of it for me.” So Joan decided to strike a deal with him. “I said, Look, I don’t want us to compete, so let’s divide up physics between us. I’ll take auroras and you take the rest of the Universe. And he said OK!”

Her brother Richard had kept his original promise to her not to work on auroras. Despite an impressive polymath career in which he applied his genius to a spectacular spectrum of problem-solving across the fields of maths, physics, chemistry, and biology, he had never turned his attention to Joan’s chosen field.
But then he traveled to Alaska, an important centre for aurora studies. On a tour of the facility, the head of the lab pointed out many of the interesting geophysical phenomena that were yet to be explained. “Would you be interested in working on it?” he enquired. Richard responded that he would, but added that he’d have to ask his sister’s permission. Joan remembers that he came back and told her the story. “I’m sorry Richard,” she replied, “but I’m not giving you permission.” Richard duly reported back that his sister had refused to allow him to study auroras!
Word of this story eventually got round, and people would come up to Joan at conferences and ask her if it was true. At one meeting, a colleague from UCLA told the gathering that he wanted “to publicly thank Richard Feynman for not studying aurora, so that we can all have some fun!”

“What you gonna do when you get out of jail?…” part 133

Monday, August 10th, 2020

Another area of crafts that I’m interested in is good quality woodworking. This is another place where I feel like it would take years of constant practice to be able to turn out something attractive and useful. But at the same time, there’s a whole lot of woodworking books out there: you can probably find plans and ideas for anything you want to build. And if you start out following the plans religiously, and only when you get good, start improvising, well maybe the ROI isn’t so bad after all.

I’m fascinated when I sit down, turn on PBS, and find something like “The New Yankee Workshop” on. For me, this is something like Bob Ross is for other people. (Except I don’t get stoned while watching it.)

It also seems like you can do some nice stuff with some basic hand tools. And a router. And maybe a table saw. And perhaps a lathe. And maybe…

(As a side note, that’s one of the reasons why I’m excited about TJIC’s book: because he’s going to talk about the tools he finds useful. And having seen pictures of some of his woodwork, I think this is a good starting point.)

One thing I keep thinking I’d like to build (when I get good enough) is a shooter’s box (or “range box”). Every now and again, I see nice ones at the gun shows, but they’re not for sale. I have a used (and slightly battered) range box made mostly out of plastic in with the gun stuff, and it is nice enough. But it gets back to the idea of using something you built yourself and that’s adjusted to your own needs, not something mass produced you bought from a store. Plus the wood ones just look better.

If you’re not familiar with the shooter’s box, well, that’s today’s theme.

This guy built a box for camera gear, but it is the same general principle:

Someday…