Thanks to my friend Clark for recommended this GeoChron 4K. It looks fantastic on the 77″ LG OLED.
It is a small device that plugs into the back of the TV in an HDMI port. It displays all kinds of cool overlaid data like satellites, weather, airplanes, etc.
Today was the first day I had a use for both lifts at home. It is a nice luxury for sure. I’m really glad I built my shop under the house, because proximity makes project so much more achievable with small time blocks.
It was also a good time to mark on the floor the exact spot for loading the GTR, and to make some right sized wood pieces to drive on.
I have made a bold decision today. I have decided to retire my “Fundamental Physical Constants’ card from my wallet. This particular card has been in my wallet(s) continuously since 1986. I had an older version from 82-86, and this replacement was an exciting upgrade at the time. Over the years you might be surprised at how many times is was a valuable reference.
It is interesting to look at the values to appreciate how ‘constant’ they have been. For example Boltzmann’s constant is listed as 1.380662 e-23, while the exact defined value is now 1.380649 e-23. Many of the constants have been improved on over the last 35 years.
Some of the constants, like the above Boltzmann’s constant, Planck’s constant, elementary charge, and Avagadro’s constant are now defined as exact values. These were all a result of the monumental change in 2019 of defining the remaining SI units in terms of these constants, instead of based on measurements. (the kg, ampere, kelvin, and mole).
As mentioned on the back of the card, the previous system relied on the physical prototype kg stored in France.
Some things, like the fine structure constant are dimensionless and have been improved upon significantly over the years.
It is certainly a bygone era to have a printed card like this, but it served me well.
A took the drone out to see around a bit in the snow..
This page is longer than one might expect.
https://en.wikipedia.org/wiki/List_of_helicopter_prison_escapes
On one hand it is impressive how well wine works. (wine being the wrapper to run windows apps in linux/osx/etc). On the otherhand, WinCUPL still sucks.
I’m a lumberjack and I’m ok.
And I might need a haircut.
Small video about that PCB I was working on over the holiday.
Geek warning – This will only be mildly interesting to 1% of my friends.. and you all know who you are!
I think I need to build a pick and place machine.
It feels good when after soldering all of the core components on the new PCB design the board just works. With this one working, the other 9 can go via the stencil/reflow method.