Bell Telephone: Explaining mobile phone technology, c1946

An evening pause: Hat tip Jim Mallamace, who notes that he watched this video on his modern mobile phone.

What strikes me is how much we take this capability for granted, especially when you watch and see how “compact” the car units were. Yet, in the 1940s when this technology was first being developed the use of telephones themselves was only a few decades old. The very idea of being able to communicate instantly with anyone over long distances was still relatively new. Now it included talking to people at random locations. For the people of that time, this was exciting news harboring a bright future.

Stockholm 1913

An evening pause: The footage is gently colorized but with little else changed. Like previous such pauses showing film footage from the past, it gives us a glimpse into a different world that appears more dignified and civilized.

Hat tip Björn “Local Fluff” Larsson, who notes, “All men wear suits and hats. All ladies are dressed up. All buildings are beautiful. Then socialism happened.”

SpaceX in Starlink negotiations with the Philippines

Capitalism in space: SpaceX and a major internet company based in the Philippines have been in negotiations about offering Starlink to its citizens.

US tech billionaire Elon Musk’s Space Exploration Technologies Corp (SpaceX) is in talks to bring broadband satellite services to the Philippines through a partnership with fibre internet tycoon Dennis Anthony H Uy of Pampanga.

Representatives from SpaceX and Uy’s Converge ICT Solutions Inc met on multiple occasions to discuss a potential venture, a source with direct knowledge of the matter told Philippine Daily Inquirer.

SpaceX apparently can’t just set up business to compete with this company, probably because it has deep ties in the government that can block it. Converge probably wants a cut, along with I suspect a number of Philippine politicians.

No deal has so far been made, but Starlink would be ideal in the more rural locations of the Philippines.

Bell Labs – The Transistor

An evening pause: This 9-minute documentary, made in 1952 by Bell Labs, provides a short and clear history of the transistor as well as its predecessor, the vacuum tube. It also tries to imagine the future that such a new invention might bring. As the youtube page notes,

While The Transistor’s vision of the future seems somewhat quaint in retrospect, it captures a moment in time before the transistor became ubiquitous; a time when Bell Labs wanted the world to know that something important had occurred, something that was about to bring tremendous change to everyone’s daily lives.

Hat tip Jim Mallamace.

New daily record for search engine DuckDuckGo

DuckDuckGo, the search engine that respects the privacy of its users, has set a new record for use with more than a 100 million daily search requests for the first time.

Privacy-focused search engine DuckDuckGo reached a major milestone in its 12-year-old history this week when it recorded on Monday its first-ever day with more than 100 million user search queries.

The achievement comes after a period of sustained growth the company has been seeing for the past two years, and especially since August 2020, when the search engine began seeing more than 2 billion search queries a month on a regular basis. The numbers are small in comparison to Google’s 5 billion daily search queries but it’s a positive sign that users are looking for alternatives.

The numbers are still too small. Why is anyone who reads this still using Google? It is incredibly trivial to switch. More important, you will find that you are getting better information in your searches, as DuckDuckGo does not play favorites nor does it squelch results from some websites because it disagrees with their politics.

And best of all, your privacy will be better protected.

Beals Science – Resurrecting a carbide lamp

An evening pause: Long time cavers are very familiar with the carbide lamp, as it was used routinely until around 1998, when LED lights arrived and finally superseded it.

Until then, the advantage of a carbide light was the quality of the light it produced, a soft bright glow rather than the harsh reflective rings produced by older electric lights.

The disadvantage however was the endless fiddling required to keep them working. For example, near the end of this video when he finally gets the light to work, he turns up the water flow to brighten the light. I guarantee that very soon the light would go out, as he was flooding the carbide. The water drip had to be precisely right. Too slow and not enough gas. Too fast and too much water.

I personally hated carbide lights because of that fiddling, especially because lamps made after 1970 were junk and didn’t work well. Most cavers who used carbide would scour yard sales to find old lights like this one, as older carbide lamps were made well and would work reliably.

Hat tip Jeff Poplin.

Scientists find method to store natural gas as a solid

Scientists at the National University in Singapore have found a way to quickly convert natural gas into a solid that is much safer to store while using far less space.

The end product is much more convenient and safer to store and transport. As a block of ice it’s shrunk in volume by 90 times, and is non-explosive and stable enough to be stored in a regular freezer at -5 °C (23 °F). The new method also apparently requires less toxic additives than usual.

It also takes only 15 minutes to convert. Essentially, the natural gas is chemically contained within a block of ice. The video at the link explains the entire concept nicely.

A new hard aluminum alloy resistant to space radiation?

According to this press release, engineers have developed a new hard aluminum alloy that is also resistant to the high radiation seen in space, which in turn could make this lighter-than-steel metal practical for spacecraft.

Making spacecraft from aluminium is one solution, as aluminium is a light yet strong material. Alloys help aluminium become harder via precipitation strengthening, but the radiation encountered in space can dissolve the hardening precipitates with potentially disastrous and fatal consequences for astronauts.

But the research carried out at MIAMI-2 in partnership with Montanuniversitaet Leoben (MUL) in Austria has discovered that a particular hardening precipitate of a new aluminium alloy – developed by a group of metallurgists led by Professor Stefan Pogatscher (MUL) – does not dissolve when bombarded with particle radiation when compared with existing data on irradiation of conventional aluminium alloys.

If I understand this, traditional aluminum alloys have not been useful for building spacecraft because they cannot withstand the radiation of space. This alloy appears to solve this problem.

I would be interested in hearing what the space engineers in my readership think.

Justin Johnson – I’ve been everywhere

An evening pause: I normally don’t post two suggestions in a row from the same reader, but this particular collapsible (!) guitar contrasts too nicely with Friday’s theorbo. From the youtube webpage:

If the ability to break down and re-assemble wasn’t crazy enough, it actually STAYS IN TUNE when you put it back together, thanks to the air-tight construction techniques and locking tuners!

The song is by Johnny Cash.

Hat tip Jeff Poplin.

Robots playing soccer

An evening pause: This is a clip from a robot competition in 2019 of what are called “kidsized” robots. Short but entertaining, especially because it demonstrates the relative stupidity and slow incompetence of state-of-the-art robots. Future versions might someday get to the level of Terminator, but these robots show that we are fortunately nowhere that close today.

Hat tip Roland.

AI software beats real pilot in simulated dogfight

The Terminator is coming: In a DARPA competition between a number of AI software teams, the finalist AI team, called Heron Systems, went up against a real F-16 pilot in a simulated dogfight and went undefeated, beating him five times in a row.

Heron Systems, a company with just 30 employees, had beaten out Aurora Flight Sciences, EpiSys Science, Georgia Tech Research Institute, Lockheed Martin, Perspecta Labs, PhysicsAI, and SoarTech to claim the top spot in the last of Defense Advanced Research Projects Agency’s (DARPA) AlphaDogfight Trials. This three-day event had started on Aug. 18, 2020.

The software then beat the real pilot.

There is a lot of blather on the website, though there is this interesting analysis by F/A-18 Squadron commander that in the end concludes that we are only a generation or two away from making all fighter pilots obsolete.

Or to look at it from another perspective, we are only a short time away from putting the ability to fight war entirely into the hands of computers and software, with abilities that humans will not be able to match.

Does no one but me see the potential problems with this? Have all of these military experts never seen any science fiction movies or read any science fiction novels?

Hat tip Tom Biggar.

Midnight repost: Buy dumb!

The tenth anniversary retrospective of Behind the Black continues: The failures of modern technology (shaped sadly by a lot of government regulation) often illustrates well the coming dark age. Tonight’s repost from September 15, 2019 gives one good example, and what you can do to counter this trend.

——————————–
Buy dumb!

The dumb washing machine we hunted for and got
The used “dumb” machine we
paid $285 for that actually
cleans our clothes.

The smart washing machine we threw out
The “smart” machine that we
paid $923 for and sold for $40.

Two years ago our old Kenmore Series 80 washing machine broke down. The repair guy said it would be so expensive to fix that he recommended it was time to buy something new.

So off we went to Sears, where we ended up buying one of today’s modern “smart” machines for a mere $923. As the LG website proudly exclaims,

A Smarter Way to Wash: 6Motion™ Technology uses up to 6 different wash motions to provide a smart cleaning experience that is gentle on clothes and maximizes washing performance.

The problem was the machine never got any of our clothes clean. It also refused to provide enough water. The way it worked was to sense the weight of the clothes you put inside, and determine the needed amount based on this. Routinely, it wasn’t enough, so Diane did web searches to discover numerous owners faking out the machine’s brains by pouring several buckets of water on top of the clothes before turning on the machine, making them weigh more.

The machine also did not have an agitator, the new in-thing among washing machine manufacturers two years ago, probably forced on them by new federal regulations. And though the tub itself did shake, it did it so gently that the clothes hardly moved.

There were also other issues with the machine’s smart technology that frustrated Diane. The machine was boss, and would not allow for any flexibility to its predetermined wash and rinse cycles, even when they made no sense.

Last week Diane had had enough. » Read more

Study: Heaviest social media users enjoy hurting others

A new study of almost 500 college-age students has found that the heaviest users of social media routinely had personalities that tended to enjoy hurting and denigrating others.

A fascinating study of 472 university students tracked their usage on two top platforms for 18-to-24-year olds: Snapchat (2.64 hours per day) and Facebook (2.28 hours per day). Researchers found that users displaying addictive behavior were also more likely to be motivated to be cruel and callous and to use others for personal gain.

“Our results demonstrate that individuals who have a greater preference for these types of rewards display greater problematic use of both platforms,” write the researchers, who note that these traits are also associated with narcissism and psychopathy and have previously been correlated with addictive internet use. They write that social media sites unwittingly “cater to people who seek rewards from being cruel, such as through cyberbullying or various aggressive online behaviors.”

Not only does this study confirm the general behavior of the bulk of all Twitter users, which has become a cesspool of slander, character assassination, and hate, it also describes the behavior of the many trolls one routinely sees commenting on websites (including Behind the Black). Too often such anonymous individuals show up throwing out comments whose only purpose is to either disagree, argue, or insult others. It requires on my part a lot of monitoring to keep such childish behavior off of this website, and this study helps to explain why it happens.

The study also provides some guidance on what adults should be doing to prevent this behavior in their children. It is a bad thing to let young children play on social media endlessly. Their use of computers and smart phones must be monitored, and their use must be disciplined, to teach children to think independently from the social media trends that can easily overwhelm them

Hat tip Ace of Spades.

British Airways retires 747 fleet

Because of the crash in customer demand due to the Wuhan virus panic, British Airways has abruptly retired its entire fleet of 747s.

This retirement had been planned, as the 747 is expensive to operate. The airline had planned however to phase them out over several years. Now they simply don’t need them, as they are flying so few passengers.

I am fortunate that I got to fly on one in 2019, in a vacation trip to Wales with Diane. This might have been the only time I ever flew on a 747, and it was a remarkably smooth flight, both during take-off and landing. It is sad to see this magnificent American achievement finally leave us.

Midnight repost: Switching to Linux

The tenth anniversary retrospective of Behind the Black continues: My contempt for Microsoft and its terrible Windows operating system is quite well known. I successfully switched to Linux back in 2006 and have never regretted it.

After seeing a number of my posts noting the advantages of Linux (or anything) over Windows, one of my readers, James Stephens, offered to write a series for Behind the Black describing step-by-step the process by which one gets and installs Linux on either a desktop or laptop computer. Below are the links to this series. I have since used it myself as a guide to convert two used Windows 7 notebooks (purchased for about $35 each) to my favorite flavor of Linux, both of which I use regularly as my travel computers.

I wish more people would do the same. I am sure almost everyone has an old computer they don’t use anymore. It will work like new with Linux. Dig it out, follow James’ instructions, and free yourself from Windows. I guarantee you will not be disappointed.

Lego Antikythera Mechanism

An evening pause: From the youtube webpage:

The Antikythera Mechanism is the oldest known scientific computer, built in Greece at around 100 BCE. Lost for 2000 years, it was recovered from a shipwreck in 1901. But not until a century later was its purpose understood: an astronomical clock that determines the positions of celestial bodies with extraordinary precision. In 2010, we built a fully-functional replica out of Lego.

Hat tip Shaun Karry.

A Trip Through New York City in 1911

An evening pause: I’ve posted similar early 1900 film footage for Paris and San Francisco. My one reservation about this restoration is the adding of color. They don’t over do it, but adds an element of inaccuracy to the footage.

Hat tip Mike Nelson, noted some of the same things I did with the previous examples.

What strikes me is how well dressed everyone was, how there was no trash on the streets (despite no obvious public trash cans), no graffiti, no road rage despite the complete lack of traffic control, and the air quality looked significantly worse than today. Other than cleaner air I’m not so sure we can call today a big improvement.

I personally am not sure the air quality was worse either. Watch, and get a sense of what America was once like.

What Happens When an 18 Year Old Buys a Mainframe

An evening pause: This is a bit long for an evening pause, and I myself did not understand a good portion of the terminology, but it is still fascinating and worth watching nonetheless, if only to give you hope for the future. As the last questioner at the end said, “I think you’ve raised the bar on what all of us should expect from our kids now.”

Hat tip Diane Wilson.

The coming small satellite revolution

Today I received a press release from the Universities Space Research Association (USRA), announcing a half-day symposium in Washington, D.C. on March 26, 2020 entitled ““The SmallSat Revolution: Doing More with Less.” The announcement was an invitation for the working press to register and attend, noting that the speakers will include, among others, Thomas Zurbuchen, NASA’s associate administrator science, Jeffrey Mamber, president of NanoRacks, and Patricia Cooper of SpaceX.

As interesting as this might sound at first glance, I will not attend. For one thing, it is on the other side of the continent, and I can’t afford to fly cross country for such a short meeting. For another, I don’t see the point. I attended a lot of these DC symposiums when I lived in Maryland, and though they were often very educational and the free food (paid for almost always by the taxpayer) was always enjoyable, I routinely found them somewhat lacking in newsworthy content.

Thirdly, and most important, yesterday I attended a much more newsworthy one day conference here in Tucson on exactly the same subject, dubbed the Arizona Academic CubeSat Symposium. Unlike the Washington event above — which will likely be a mostly superficial look at the burgeoning cubesat industry — yesterday’s symposium was focused on letting students and scientists describe actual and very ambitious cubesat projects presently under construction or design.

In less than seven hours I saw the following:
» Read more

1 2 3 4 8