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It is gradually and then it is suddenly

"How does a man go broke? It is gradually and then it is suddenly!" Hemingway. If you think about it you’ve got to agree with Hemingway famous statement. But then, you can start to ponder on the fact that apparently impossibile attributes, like gradual and sudden, can indeed go hand …

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It is not a free lunch…

We’ve got plenty of CO2 (carbon dioxide), so much as a matter of fact that it may be affecting the climate by blocking the dispersion of heat from the Earth into the space. CO2 is a by product of most industrial activities, of energy transformation (like converting energy from fossil …

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Seeing what you see

In September 2013 I wrote a post on Crowdoptic, a start up that exploited Google Glass to broadcast live events through the "eyes" of many viewers. Now I stumbled onto another news related to Crowdoptic announcing that the start up has created a new application that can let one person, wearing Google Glass, look …

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Listen to your heart

There are quite a few of wristbands equipped with sensors to monitor your heart beats but now LG is looking at a different approach to monitor heart beats and other parameters. Using Valencell technology they are planning to sell earbuds embedding sensors that can monitor heart beats through photoplethysmography, a mechanism that …

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Chasing the Sun

Solar panels need the Sun. As easy as that. And they need "to see" the Sun right above them. As soon as the Sun light is no longer hitting the surface perpendicularly the yield decreases. A 3 kW home installation that gets to the peak at noon will probably generate …

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A future without GPS

GPS, Geo-Positioning System is providing a variety of services so seamlessly that it has almost disappeared from our perception. It is not just about the "big things" like airplane navigation or military use, it is also about small apps that we may use often, like Everytrail, the navigation system in …

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This is for me!

I have worn glasses for as long as I remember, so I am used to them. Yet, the increase of experience (ageing) is now forcing me to use two pairs of glasses one as I did before and one to look at the screen of my iPad and computer. This …

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Extreme low power sensors

As sensors will become widespread in the environment, and in wearable, a crucial issue will be power consumption. Energy scavenging, I posted some ingenious ways of doing it, is a possibile way to supply energy: some kind of energy scavenging can harvest in the mW area when using radiation frequency …

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Taming Lithium

Lithium batteries are quite widespread since they represent the best compromise in terms of storage capacity and weight. Improving them any further has proved difficult. Scientists know that one way exist: substitute the anode, today made in silicon or graphite), with one made of lithium. Unfortunately, the solution does not …

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