Dallas researchers have developed a new miracle fiber:
The list of potential applications for a new electrically conducting fiber—artificial muscles, exoskeletons and morphing aircraft—sounds like something out of science fiction or a comic book. With a list like that, it’s got to be a pretty special fiber… and it is. The fiber, made from sheets of carbon nanotubes wrapped around a rubber core, can be stretched to 14 times its original length and actually increase its electrical conductivity while being stretched, without losing any of its resistance.
That’s great news, and I hope it pans out. That said I am befuddled by the statement that conductivity can be increased without losing resistance. I am a lawyer, not an engineer of any sort, much less an electrical engineer. But I always thought conductivity and resistance were two sides of the same coin, that if one went up, the other necessarily went down, not as a matter of existing technology but as a matter of definition.
I am sure the confusion is caused by my lack of understanding. Is there anyone out there who can explain this?
The rain came back to Texas this spring, and now you can paddle the rivers again. Yesterday, I joined a small group to paddle the Guadalupe River from the Bergheim crossing down to Guadalupe River State Park. I was reminded of how beautiful and peaceful the river can be.
Coral vine (Antigonon leptopus) is native to Mexico, but I can attest that it grows well in the San Antonio, Texas, area.
Maybe someone else planted it long ago, but my family has lived in this house for 30 years, and we have neither planted it nor tended it. It freezes back every winter and comes back every summer with a lush display of pink flowers interspersed with a few white ones. Monsoon or drought, it always comes back.
I gather some specimens have more white flowers. However it got into my yard, I am very glad it is there.
The photos show it growing over Japanese Ligustrum. The vine has done the Ligustrum no harm.
The Kingston Trio sings “Tom Dooley.” Believe it or not, this was cool stuff when I was young.
This was taken at the mouth of the Guadalupe River, looking out across San Antonio Bay. The river is the line between Victoria and Refugio Counties, Texas. I took this from a canoe and tried to get a shot from the bay looking back into the river mouth. But the bow paddler could not hold the boat steady, and there was enough chop in the bay that I was at risk of tipping over if I took my paddle out of the water long enough to get the picture. I decided I didn’t want the picture that bad
If you need a place to stay in the Brenham area or if you live within or near the Austin-San Antonio-Houston triangle and want a weekend get-away, consider Brenham’s Ant Street Inn. I will get no benefit if you do, but my wife and I stayed there a while back and found it very enjoyable.