And back to the TEDx talks...
I almost got distracted by the idea of vacuum balloons - filled with nothing instead of helium. That's a brilliant idea.
Then there's the Ashby chart for strength vs density which kind of looks like the Very Hungry Caterpillar.
More importantly here is the chase for a material that is lightweight (low density) and strong, leaving the main area of the aforementioned Ashby chart.
I think I have most of the concepts down until - for about thirty seconds at 9:35 - the speaker talks about two-photon lithography and how the ceramic matrix is produced. There are words like boxel (a 3d pixel) and rastering lasers through space. I get the bit about depositing the material - whatever it is - onto the polymer matrix, but how the heck that polymer architecture is laid down is a total mystery to me.
All in all this looks like fascinating steps forward toward...something...in the future.
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