All posts by Tom James

Green technology boom

There are a couple of articles in Wired and the FT today about the recent increase in investment in green technology; including solar power, carbon sequestration, wind turbines, energy efficiency technology, and water purifiers.

Highlighted in both is the how rapidly the amounts of money being invested are increasing, from Wired:

Investments in companies working on green technology in North America totaled almost $4 billion in 2007, according to the CleanTech Group. And 2008 is on track to yield five times what was invested in 2004.

They also compare the current increase in investment with the dotcom boom of the late nineties, noting the comparatively high cost of entry as well as the long term outlook of green technology industries, from The FT:

Earlier this year, Arvind Sodhani, president of Intel Capital, an important venture capital investor, warned of a speculative bubble in clean technology start-ups. It is an inevitable concern in the wake of the dotbomb and the less-than-impressive performance of many social networking websites. But echoing the words of solar power entrepreneur Mr Ford, Mr Traversone ripostes: “This is not a fad, this is a secular trend in investment.”

It would be wonderful if there was a second industrial revolution in clean, green technology. Thinkers like James Martin in his excellent book The Meaning of the 21st Century: A Vital Blueprint for Ensuring our Future talks about the idea of “eco-affluence” – the idea of developing an environmentally-friendly but extremely prosperous economy. I recommend Martin’s book as it discusses many speculative ideas but is grounded in reliable evidence.

[articles from Wired and The FT]

Invisibility update…

lolcatsThe intriguing development of materials that are effectively invisible thanks to a phenomenon called negative refraction continues apace.

This article from a Physorg has further details:

Applications for a metamaterial entail altering how light normally behaves. In the case of invisibility cloaks or shields, the material would need to curve light waves completely around the object like a river flowing around a rock. For optical microscopes to discern individual, living viruses or DNA molecules, the resolution of the microscope must be smaller than the wavelength of light

The theory behind negative refraction seems fairly complex – but it’s interesting to imagine what can be done by “altering how light normally behaves” and the possibility of viewing live viruses is also interesting.

[stories from Physorg and BBC News][image from PhoebeJ on flickr]

Back of the envelope: is solar power feasible?

solar_panelsDr Buzzo has some interesting back of the envelope calculations concerning localised solar power generation. This kind of localised, renewable energy generation, is something that Greenpeace are pretty hot on:

Day by day the sun supplies 15,000 times the amount of the daily energy-demand of the total global population. In less than 30 minutes the sun sends more energy to our planet than is consumed in a whole year.

This certainly looks promising. Dr Buzzo looks at it from the other direction, by taking available data on the amount of solar energy available, the efficiency of solar panels etc, and looking at how much energy could be generated in his native Connecticut:

Reasonably speaking I

The Pensieve: memory augmentation device

memoryStraight out of the Greatest Kid’s Franchise of the Century So Far (please enlighten me if there is one greater) we have a transhumanist/human-augmentation project from IBM:

The technology, nicknamed “PENSIEVE” by the IBM team, uses associative recall to make connections between pieces of related data acquired by a person. The advantage of the new technology is its ability to understand the context in which data is captured, then connect various data, and then use this knowledge to help bring the correct information to a person when it is needed.

Along with similar projects, like MyLifeBits from Gordon Bell at Microsoft, technologies like this will presumably be the first steps towards the extremely advanced memory augmentation systems envisioned by Ray Kurzweil in The Singularity is Near.

[story via Slashdot][image from edans on flickr]