Geodesic Dome ideas 777geodesic

First of all.... check out https://www.ziptiedomes.com/
This site is full of wonderful ideas and super useful information.

BAMBOO

Perhaps bamboo can be wrapped by fibers wound around outside of the bamboo.  This could strengthen bamboo against splitting.  Fiber could be fiberglass ..... sisal .... banana  .

https://en.m.wikipedia.org/wiki/Sisal   <—- sisal

https://en.m.wikipedia.org/wiki/Fiber  <—— see banana

https://en.m.wikipedia.org/wiki/Bamboo_textile  <—- bamboo fiber

PVC & ABS PIPE
off the shelf products made from these materials are easy to use and modify.   Both PVC and ABS are thermoplastics , so they can be softened , reshaped ........ or melted and remolded.   They are easy to drill and machine.  The scrap and shavings can be reused.


CONNECTORS



DESIGN TOOLS
http://www.domerama.com/software/geodesic-software/   <—— open source

DOME 4.80ar.02  is a program, by Rick Bono, for creating models of geodesic domes, spheres and related models.  It runs on Windows.

Geodesics Using Mathematica
https://scholar.rose-hulman.edu/cgi/viewcontent.cgi?article=1288&context=rhumj
see page 9.6 , 10 , 11

COMPUTERS
i will first attempt to run design software on the Raspberry Pi 4.0
Also any test tools or building controls will be based on Raspberry if possible.

https://www.wolfram.com/raspberry-pi/   <—- Mathematica is free when used on Raspberry


3RD PARTY RESEARCH RESOURCES

https://simplydifferently.org/  <===  really excellent source for alternate construction geometries.
     https://simplydifferently.org/Dome   <=== focused on dome geometries



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http://www.httrack.com/

HTTRACK works like a champ for copying the contents of an entire site. This tool can even grab the pieces needed to make a website with active code content work offline. I am amazed at the stuff it can replicate offline.

This program will do all you require of it.

tags :  777geodesic  777fuller  777fullerene

Michael Levin's Lecture on "Why Race Matters"

MICHAEL LEVIN claims to expose fallacies of arguments for IQ-EQUALITY between “whites” & “afro-americans”. LEVIN focuses on the inconclusiveness of various arguments …… ending in agreement with Charles Murray’s 1994 reading of evidence for a genetic basis for the black-white IQ differences. 

LEVIN reports that Murray concluded the IQ-gap can not be got rid of …… so, might as well simply accept it.

{{ Zarathustra objects to LEVIN’s unexamined assumptions starting with (1) there exist different races …… as well as skimming over other assumptions …… (2) that IQ exists  (3) that it predicts many life outcomes  (4) that there is a gap between black IQ scores and white IQ scores  (5) that IQ is at least partly heritable (as is almost every human trait )}}

STRIKE TWO against LEVIN are his commission of fallacies of his own while attacking his opponents’ fallacies. For example, re the argument that there is a wider gap in traits within a group, than there is between groups. LEVIN introduces his own counter-example of the group ‘dogs’ and the group ‘giraffes’.  LEVIN would have been better off selecting creatures sharing the same genus.  Since the dog is of the Canis genus and the giraffe belongs to the Giraffe genus, LEVIN’s example fails to prop up his intended point.

LEVIN also commits an omission when he fails to follow-up on a topic that would seem to be optimally positioned for LEVIN. He mentions in passing the fact that genes can behave differently in different loci resulting from gene-interactivity.

The listener is primed to learn more about the effects of gene interactivity. 

LEVIN skips past, saying that the explanation is too complex for this lecture. 

If LEVIN wants to answer the question why “race matters” it would make sense to offer some detail on the import of epistatic genes that inhibit hypostatic genes at another locus. 

The lecture begins to feel like a “grab the trophy …… never mind the small stuff“ momentum event. 

In the Q & A afterward, LEVIN is asked whether he believes it would be better if the government stayed out of it:

LEVIN’s response reveals that his concern is mainly political, rather than philosophical or scientific. LEVIN says YES  - it would be better if each organization or business were free to hire according to their own preferred criteria.  

He offers medical training as an exception: a political policy like “affirmative action” would be a bad thing to apply to selection of med school candidates. 

LEVIN’s lecture would be better named “WHY AFFIRMATIVE ACTION IS A BAD IDEA IF IT RESULTS IN MEDICAL DOCTORS WHOSE IQ SCORE IS 15 POINTS LOWER THAN THE HIGHER IQ DOCTORS?

Notes on Dexter ( HDR ) ... a robot arm of advanced performance

Designer / Company information

Haddington Dynamics
 3068 E Sunset Rd #14, Las Vegas, NV 89120


My experiences with Dexter
.. finding documentation




Third party reviews


Consumer / Household ideas
make vitamin packets
make med packets
open a bottle of wine
Unscrew lids on bottles

Link to unorganized notes


tags:  777dexterRobot   777DIYrobotArm   777HDR     777dexter

Fabulous Found Tools and Materials

Things a bricoleur needs / wants / desires



Chopsticks    [ 777chopstick 777chopsticks ]

chopsticks make great mixing rods.  They work great for holding a nut that has been painted and is drying.  they work for proving connecting rods.










tags:  777FabulousFoundTools     777bricoleur   777foundMaterials

I came, I saw , I unplugged the toilet ..... clogged toilet

99Toilet issues

The upstairs guest toilet got plugged by JY poop.  
I had configured the toilet for vigorous action including extra water
so the toilet overflowed. ,  The plunger did not fit toilet well and
I could not clear the poop. Finally I used an old towel as a gasket…. I cut a
two inch ( 6 cm )  hole in the middle of the towel and laid it in the middle of the bowl.
I put the plunger through the hole. I used another towel to “roof” the
plunger to reduce splashing.

When using a snake … protect the toilet from scratches …….   use a bent plastic pipe

https://www.youtube.com/watch?v=_QQ7YxatBkY

It is also a good idea to use dish cleaning soap …. Followed by hot ( not boiling ) water.  
Water that is too hot will crack toilet.

https://www.youtube.com/watch?v=4VIHTgUEhQ

side of snake

front of snake

bottom of snake

   

plunger does not fit toilet opening... 
round versus rectangular

preparing for action  here is the plunger

hole is cut in towel to fit end of plunger

toilet seat cover helps "clamp" towel

insert plunger into hole in towel

towel is wet and is pushed down into bottom of bowl

just about ready to "plunge away 

second towel protects against splashing

tags:   777toiletJoy   777cloggedToilet  plugged toilet

Investigations into SQ13 , SQ11 , etc. cameras ... review

SQ13 cube camera and DVR 

Disassembly of SQ13  ( teardown )
reverse engineering , 
see the following images ....


SQ13 Audio
Audio recording is not very strong.  The microphone is in what seems to be a disadvantageous location.

SQ13 Battery
It appears to have a protection circuit as part of the battery.  The battery is rated at 3.7V and 300mAh.  Any add-on battery should have the same.


Disassembly of SQ11 ( teardown )
SQ11 images

SQ11 Battery
I saw no markings on the battery.  It is probably a 3.7 volt lithium. It appears to have a protection circuit as part of the battery.  Any add-on battery should have the same.





tags:     777SQ13   777cubeCamera   777camera   777review  777SQ11    777DVR

Restoring an SLA battery one experiment

Around 2017m05d22 I pulled a 12V  SLA battery from a trailer.  The SLA was being used to power the emergency braking system for the trailer.  I did not know how old the battery was or when it was last charged.  Here is a photo of the battery.

My DMM  measured 6.3V across the SLA.  My experience says this means the battery is near death and cannot be restored.  I chose to mess with it anyway.  I put the battery on a 14.3V / 2A charger and measured a voltage of 13.9V.  This usually means the battery is not accepting charge and is presenting a high impedance to the charger.  I left the charger connected overnite.  The next day the voltage was still 13.9V.   I disconnected the charger and the voltage was 12.2V ...... this was a surprise.  I do not yet have an explanation for it.

I shorted the SLA with a spoon for 2 seconds and got a big spark and some glowing metal.  Afterward the voltage was still 12.2V.   With the charger connected the voltage was now 13V.

I will continue to monitor this battery.

Gus in Denver



tags:   99guspuppet  777SLA  777restoreSLA