Crowdfunding, part II – What I’ve Learned

 

In my last post, I wrote about what I’d learned about fee structures as I set up a Crowdfunding campaign to help a buddy in need. In this post, I’ll share what I’ve learned now that I’ve run a full campaign. This is stuff I wish I’d known before I started. This can also be used as a How-To for those that will be setting up campaigns of their own. Let’s press on…. Continue reading “Crowdfunding, part II – What I’ve Learned”

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Crowdsource Fundraising. Fees and fees and fees!

So, a buddy of mine had a bad motorcycle accident. He was riding in Sunnyvale and a driver took him out. Two broken legs, and pins in both hips. Life is very challenging for him now. Anyway, he’s the Jack-Of-All-Trades at my kids’ schools (Portola Valley School District). As we live in a wealthy area, I thought I’d set up a crowdfunding site to help him with the financial challenges that face him. Turns out that being nice costs….. And if you’re not careful, it’s much more than you’d expect. Continue reading “Crowdsource Fundraising. Fees and fees and fees!”

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WiFi Health and Safety – A Summary of the Mess!

I live in a really wonderful area. We are lucky to have excellent local schools, The Portola Valley School District is a small district of just two campuses. Our community is active, and our district holds lots of events to both inform and poll the parents and other interested parties. During the 13/14 school year, I went to the district sponsored meetings on technology, a hot educational topic due in part of the new infrastructure requirements driven by the Common Core testing changes. I was really surprised that the issue of WiFi health and safety came up at both meetings. In fact, some of the parents in our community feel that this is a very urgent and pressing health and safety issue. While skeptical on this one (I’m a physicist by training) I decided to pretend I knew nothing on the subject and I did some digging…. This not-so-brief write up is the result of what I learned.

Continue reading “WiFi Health and Safety – A Summary of the Mess!”

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Hyper Efficient Audio – 100 W from a single battery!

It’s amazing what application specific integrated circuits can do now. I never stop being surprised at what I keep seeing coming out of the pipeline. Audium Semiconductor recently gave me one such surprise with the hyper efficient AS1001 amplifier that can deliver 100 watts peak power, from a 1.5 volt (read single battery) power supply. Continue reading “Hyper Efficient Audio – 100 W from a single battery!”

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Driving the Nissan Leaf

The Nissan Leaf is an all electric car for the masses. On paper, the car seems to be a much more realistic proposition than cars like the Tesla or the Fisker. It’s a small 5 seat car, with a range of 100 miles and a target price somewhere a bit above $25k. For many, this is a price point that is manageable, even in these tough times. Continue reading “Driving the Nissan Leaf”

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Battery fill up via pump?

Turns out the crafty Germans are at it again! As reported in the Fraunhofer Research News recently, a group there is working with something called a redox flow battery. Basically it uses a liquid instead of a solid to store the charge. This isn’t new, but the team has brought the energy density up to that of Li-Ion batteries, and that is new! Continue reading “Battery fill up via pump?”

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