Showing posts with label MIT. Show all posts
Showing posts with label MIT. Show all posts

Monday, July 13, 2020

Swartz and the Free Internet



Until today I had not heard of the name Aaron Swartz. A dive down one twitter rabbit-hole led me to this documentary and I was quite amazed to learn about this child prodigy, this teenager who was one of the founders of Reddit, an architect of Creative Commons, the slayer of draconian legislations that restricted internet freedom, and conscientious young man who was driven to kill himself by MIT and the Obama administration. 

As if all these were not achievements enough for a lifetime, Swartz also gets the credit to enabling the discovery of a test that leads to the early detection of pancreatic cancer!

A friend who studied at MIT thought there was nothing new or shocking about MITs role in making a scapegoat out of Swartz. "It is difficult to admire MIT if you're a thinking person", he said, "Most of the research there is centred on war weapons and the best way to kill". So it may not be surprising that the Obama government wanted to make an example of a man whose principal crime was to get past the JSTOR paywall and download years of public-funded research papers.

Until last year I would have thought such a move went against the very grain of USAs self-proclaimed   position as a 'land of the free'. The aggressive rise of China, the Covid-19 pandemic, Galwan, and the nine-dash-line leads me to a more hardline position against authoritarian regimes who are trying to turn this freedom into some kind of liability.

If internet freedom and free access of research from US universities only leads to a one-way flow of information and technology, it may not be a bad idea to temper the zeal of youngsters, who, for all their deep knowledge, are unable to see the big picture of global geo-politics.


Saturday, July 13, 2013

Bose Speakers...and Suspensions!


Amar Bose passed away yesterday.

I have always been in awe of this inventor + professor + entrepreneur + visionary engineer.

The first time I heard about him was on a sultry afternoon of 1987, at a home in Thiruvananthapuram. My friend Ram had brought me there to see the 'best music system ever'. As crystal clear music filled the room, I realized that the big boxes, the woofers and tweeters, were nowhere to be seen. It seemed so incredible that those tiny black boxes perched on the walls, pointing in odd directions, could pack in so much of the power of music!

Amar Bose was a pioneer in the field of Psychoacoustics -- the science of sound perception. He was the first to realize that 80 percent of the music you heard in a concert hall came to you, not from the stage, but indirectly, bouncing off the walls and ceilings. So his 'jewel cubes' did the same - instead of pointing at the listeners, they aimed at the walls first.

Many glowing obituaries are now being written about Bose. One such article published in NYT, credits him for breakthrough products like the noise-cancellation headphones and innovative suspension system for cars.

I did a double take on that -- Suspension system for cars?? -- what does that have to do with psychoacoustics or sound engineering??

According to HowStuffWorks, Bose suspension systems use the concept of amplifiers in a completely different setting. Instead of the usual spring-driven suspensions, these use -
"linear electromagnetic motors (LEMs) at each wheel...with Amplifiers that provide electricity to the motors in such a way that their power is regenerated with each compression of the system...they can extend and compress at a much greater speed, virtually eliminating all vibrations in the passenger cabin. The wheel's motion can be so finely controlled that the body of the car remains level regardless of what's happening at the wheel. The LEM can also counteract the body motion of the car while accelerating, braking and cornering, giving the driver a greater sense of control."
As with the acoustic speakers, the Bose suspension systems too must be frightfully expensive. But I guess that is a small price to pay to learn from a teacher who set the highest standards for himself, to tackle high-risk problems in science and engineering.

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LINKS

* NYT Obituary - http://www.nytimes.com/2013/07/13/business/amar-g-bose-acoustic-engineer-and-inventor-dies-at-83.html?_r=0
* HowStuffWorks: Bose Suspension Systems -- http://auto.howstuffworks.com/car-suspension9.htm