The more energy captured, the more energy needed to be provided by the dancers. Yes, they could make it a very stiff floor, but they would capture very little energy. So, it becomes a matter of how much extra energy dancers are willing to provide. It will be hard to balance the two to get maximum return on investment.
jhankwitz, I made a similar comment on a different blog just a while back. Whar we don't know is how much the floor actually deflects, which would be the major way that dancers would observe the energy being captured. If the deflectio is very small, say less than 0.025 inches, or so, probably it would just be taken as a slightly cusioned floor. But if the flex were a lot more, say 0.125 inches, then it would certainly be quite obvious and it would feel like a drag. So what we need is more information. And while it may work very well in dry weather, it is not so clear how the sidewalk would survive in our slushy salty southeastern Michigan winters. Of course, any energy capyture mechanism does need to last a while, so durability really matters.
I agree on wanting to see these examples of new technology in action, Nadine. If these technologies meet their PR promises, they could make some very positive changes. I expect that many of the new technologies we're seeing on the Design News site will find positive real-world applications.
Maybe Pheonix Contact is trying to make a point. The use of "Green" for many things that obviously aren't. And some of the hated non-green things have a much smaller footprint over their lifespan than do the "green" things. Green has become a sales buzzword and really means nothing. It is used to push many impractical "technologies" rather than to make a real difference.
How many of our supposed "Green" projects are really just an excuse to collect a subsidy, and really have very little "green" benefit? Is it really "green" or is it just a way on getting the public to give mw money so I can play with the latest fad???
Dancers would avoid an energy dance floor because it would drain too much of their energy. Basic Physics states that you can't get something for nothing. Dancing on this floor would be like jogging on a sandy beach instead of hard pavement.
Rich, the idea of green car is diluted by green color. Whether it can save energy and minimizes the environmental pollutions? The piezo electric effect (converting mechanical energy to electric) is so common and now a day's such appliances are deployed in public places.
In a bid to boost the viability of lithium-based electric car batteries, a team at Lawrence Berkeley National Laboratory has developed a chemistry that could possibly double an EV’s driving range while cutting its battery cost in half.
Using Siemens NX software, a team of engineering students from the University of Michigan built an electric vehicle and raced in the 2013 Bridgestone World Solar Challenge. One of those students blogged for Design News throughout the race.
Robots that walk have come a long way from simple barebones walking machines or pairs of legs without an upper body and head. Much of the research these days focuses on making more humanoid robots. But they are not all created equal.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.