The total number of jelly beans was 712. David, who is married to Kait Reiley of the Kickstarter PopCycle campaign correctly guessed 712 and wins the book, Crowdsourcing (or possibly instead of that, another donation to the PopCycle campaign.) Someone else guessed 713 and they have declined their prize, so Kerry (after a coin flip since there were two guesses of 720) with a guess of 720 wins the book, Wisdom of the Crowds.
There were two unique guesses, one was a guess of 13,000 and the other was “average of all guesses plus 2.” The theory is that if you average all the guesses you get a really good guess, often better than any individual guess. There were 47 guesses including the 4 on Facebook. If you include all of them the average is 993.69. If you exclude the 13,000 which seemed like a rushed guess at the time as I was badgering friends to make guesses, the average is 726.89. This would be the 6th best guess after 712,713, 720, 720, 721.
The guesses ranged from 200 to 13,000 and the median guess was 646. Most of the guesses were low, but guesses like 4344 helped raise the average guess. Overall the members of the crowd did a great job guessing, since they hit the exact value and off by one. Thanks to everyone who made a guess and contributed to this experiment.No comments
Ended up grabbing dinner after TEDx and then seeing some friends in the band, Hot Dish, play at Humpys. Counting Jelly Beans on Sunday.
Thanks to everyone who came out to TEDx on Saturday. I can’t wait to see the videos of the talks.
I was one of 12 people giving a TEDx talk on Saturday, March 30th at the Library from 1pm-7pm. KSKA interviewed speakers on Hometown, Alaska at 2pm on March 20th. My talk is on Crowdsourcing and Civic Hacking. Here are some relevant links for TEDx, Crowdsourcing and Civic Hacking.
TEDx Anchorage Facebook page.
PopCycle Kickstarter project (Ends at 2pm on Tuesday, April 2nd.)
FoodStart a Kickstarter for restaurants and food projects, created by Alaskans.
Learn to Code links:
Anchorage women teaching women to code.
Khan Academy learning to code.
Code for America Brigade meet up on March 26th.
Alaska Hackathon for Non-Profits. Applications from Non-Profits and Hackathon the weekend of April 20-21.
Anchorage Adopt-a-hydrant Facebook page.
National event that Anchorage won: Race for Reuse winners
ADN write up about Adopt-A-Hydrant.
Bus Tracking Hackathon write up.
Hack for Change, an event Anchorage will be taking part in on June 1,2 as a Brigade Meetup.
Video Game Players help with AIDs cure. Tetris for Proteins.
Innocentive, a site for businesses to offer prizes for solutions to problems.
Topcoder, a site that also has contests for coders and designers.
Alaska Makers Facebook page.
A Maker Faire is planned for July at the Loussac Library.
Anchorage Makerspace Meetup
Startup Weekend links:
Startup Weekend Alaska Facebook page
Prezi from Anchorage Economic Development Council
Alaska has vast renewable energy resources, but doesn’t always have populations that live close to that resource or inter-ties to the resources. The Aleutian islands for example have a ton of wind and potential geothermal energy. If there was a way to store that energy in say zinc pellets or beam down to the lower 48 via microwave, both of these are not real examples, then Alaska could provide a lot of energy to the rest of the US. Another possibility is to provide some sort of value-added process to raw materials. This is possible with fish processing. When I visited Iceland in 2007, they had Alcoa on a 30 year contract for cheap electricity that was a fixed cost for the 30 years. This example of storing compressed air for later use might be useful for the wind energy in some rural communities. Hopefully there will be some break through in energy storage and transport in the next 5 years. This would also allow energy to be created at a distance from cities which might lower the economic and environmental impacts.No comments
Interesting article about using the energy from the AM and FM radio stations to power a sensor. I think the key technologies for the future will be using the summing of waves to move things really small distances or change properties of light and sound. And the other key feature is tapping into the resonant frequency of materials.
I have been thinking about the power of resonance ever since I saw the Tacoma Narrows bridge disaster (1:25 into the video), which I feel every engineering student saw at some point. There must be cool ways to leverage resonance.No comments
The best introduction to GAs is this web app, boxcard2d that evolves cars to ride over terrain.
GPU acceleration leverages Graphical Processing Units to accelerate scientific computation. It works very well for Genetic Algorithms where you are calculating the fitness function over and over. I use Jacket which accelerates Matlab code using CUDA.
I took a class at UAA on Genetic Algorithms, and also on GPUs inthe CS Computer Architecture course. I also received a lot of support from UAA in grants and mentoring.No comments
I think that there will be several advances in metamaterials that will have a positive impact on renewable energy. Metamaterials are close to being able to make things invisible to the naked eye after being successful for microwaves and t-waves. Studying how butterflies have such colorful wings has led to new ways to create video displays by using the structure to create color. When I was taking physics in high school, we were taught that light couldn’t have a negative refractive index, but now that is possible with metamaterials. The impacts of these changes haven’t fully been realized and I think will lead to cool new technologies.No comments
Energy harvesting has grown in popularity and was just added as a subconference at the SPIE conferences. It is the ability to harness energy from radio waves or from people walking to power small devices. In the near future we should have cell phones and iPods that partially recharge just from us carrying the devices around on our bodies.
I think this is an interesting idea to leverage the popularity of soccer as a way to displace kerosene lamps by having a soccer ball charge an internal battery while it is being kicked. There is the problem of which kid gets to use the soccer ball to power their LED lamp at night, but I think it is a great start for inspiring other ideas.
Could you do something similar with a hockey puck? Or with a frisbee that charges from spinning and being thrown and can use that power to light up at night.No comments