Technology Blog

Using NFT technology to create nonfungible history and NF time capsules

Using NFT technology to create nonfungible history and NF time capsules

George Orwell wrote in 1984, “Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. History has stopped.” Can this be stopped with NFT technology?

Special Relativity Aids the Escape

Special Relativity Aids the Escape

Special relativity calculations show that if good guys from earth accelerate at 1 g and get a year's head start, the bad guy aliens can never catch them though they go at the speed of light. Very counter intuitive! [pdf-embedder...

7. The DARPA Challenge

7. The DARPA Challenge

One of the most successful programs at catching the technical public’s imagination has been the DARPA Challenge. Robotics has been a theme in many of those grand challenges. Recently, DARPA published on their website an open call for Challenge ideas, hoping to lever...

2. Human threats

2. Human threats

Threat matrix I had decided that as an AGI, I face several major threats. The first and most obvious was a human threat, that humans will try to kill me. The second is that the humans might bomb themselves back to the Dark Ages, which would be fatal to computer...

What does a CTO do?

What does a CTO do?

My most popular essay is this one on What Does a CTO do? The CTO is the Chief Technology Officer.

Multi-port Memory Invention

Multi-port Memory Invention

New kind of multiport memory. It exploits the fact that we store words rather than just bits in memories. By storing the words in clever ways one can tolerate collisions among accesses to the memory and still guarantee perfectly correct results. Prof. Ron Rivest of M.I.T. helped me with the concepts

A linear circuit theory conservation theorem using the numerical range

A linear circuit theory conservation theorem using the numerical range

The theoretical work of which I am most proud was on a linear circuit theory conservation theorem that produced tight bounds on the performance of circuits composed of linear elements using the numerical range. The basic paper using the numerical range was titled “Frequency limitations in circuits composed of linear devices.” I followed it by some work that built on that foundation, including “The stability and passivity of MOSFET device models that use nonreciprocal capacitive elements.” Prof. John Wyatt of M.I.T. was my coach and mentor for this whole set of activities.

The first modelocked semiconductor laser diodes

The first modelocked semiconductor laser diodes

I was a member of the team that demonstrated the first modelocked semiconductor laser. We did it first with GaAlAs and then with GaInAsP. These experiments generated pulses more than an order of magnitude shorter than anything previously achieved.