Category Archives: Uncategorized

More blog posts on Medium.com

https://medium.com/@danvk

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2015 Maine Winter Hackathon and Adventure Club

This post is available here: https://medium.com/@danvk/2015-maine-winter-hackathon-and-adventure-club-2192a2699d39#.vr4wwlpuu

Slowing the Solar Revolution

This post is available here: https://medium.com/@danvk/slowing-the-solar-revolution-26e536e4cff4#.cql6qx35q

A carbon solution

Aligned Carbon Nanotubes3D printing may be a long term solution to the carbon problem.

Carbon fiber is a mechanical engineer’s dream.  It has great properties for building physical things.  3D printers will improve toward using carbon fiber and substrates because of the combination of physical properties and the simplicity of a supply of carbon.

Imagine a world in which we can have carbon fiber skyscrapers and vehicle parts — buildings and physical things that cost little to produce from carbon collected from the environment, possibly the air.

MIT is already able to print a building with a sandwiched layer of concrete and insulation.  In a decade, this will be possible on a commercial scale.  In two decades, smart machines will offer choices of building materials and be easily customizable from libraries of public designs.

I’m not suggesting that we should ignore the carbon problem.  I’m suggesting that a good solution might be to invest in carbon demand.  Specifically:

  • Carbon collection system: collect, purify, and prepare carbon fiber from CO2.
  • Carbon fiber printing system: build up structures with fibers running in the right directions.

How is it possible that radio ads are unsearchable?!

All the incentives are aligned: advertisers want to connect with customers and customers are typing search terms, hunting for the phone number of web site of the radio ad they just heard. What was that special deal they said to mention? Where can I hear the ad again?

Google should open “ad search” and let advertisers submit audio, video, transcriptions, and links along with optional metadata like format, media outlets, etc.

Then search could handle things like ‘radio ad’, ‘tv commercial’, etc.

The advertisers do the work of populating the content and everybody wins.

Visual overlay will be very cool

I’m not making any forecasts about when this is going to happen, but visual overlay will be very cool.

We will still see the world as it is, of course.  But we will be able to add layers.  Layers can give us information like the ratings of a restaurant we see or night vision or heat vision, or little flying arrows showing the direction and speed of the wind.  Layers can also give us controls like interacting with vending machines or unlocking your car, or saving a good bottle of wine.

It will be very cool.

Things have changed since I wrote about this in 2002, but I wasn’t completely wrong: The Etherface


Wikipedia anything you see.  Add people you meet to your contact list with context.  Users generate content.  API lets developers add controls.