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Zach Cox
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Retired but still working with computer technology, and keeping track of Mathematics, Physics and thinking about what the mind is and how it came to be.
Retired but still working with computer technology, and keeping track of Mathematics, Physics and thinking about what the mind is and how it came to be.

209 followers
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Just give that sucker some arms and we are all set :)

https://apod.nasa.gov/apod/ap170725.html

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I think almost any undergraduate university student studying physics will be able to understand, and appreciate this post:

http://www.scottaaronson.com/blog/?p=3327

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Ok, I agree with Hawkins ... but ... I still think we should throw parties for time travelers ...

This morning, of course after reading the article below, recall that no one showed up at the time travel party I will have thrown tomorrow night. Well, almost, I just asked "Siri" if she attended my party and she said yes, even though I do not recall hearing her. Today and tomorrow until the party I plan on spending most of my time avoiding myself.

https://www.scientificamerican.com/article/time-travel-simulation-resolves-grandfather-paradox/

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I agree with NASA (to work correctly this would necessarily have to be a 'Covert-Launch')

https://xkcd.com/1866/

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What happened at 5:46AM This Morning?

Well, that exact time of day was the 'New-Moon'. That point in the orbit of the moon where the earth, moon, and sun are lined up. This occurs twice a month, once at the new moon and once at the full moon.

When the inclination of the orbit of the moon about the earth aligns properly with the location of the sun then either a total eclipse of the sun occurs or a total eclipse of the moon occurs.

Of course, the total eclipse of the moon occurs at a full moon and the total eclipse of the sun occurs at a new moon.

The NEXT 'New-Moon' will occur at 2:30pm on the 21st of August 2017.

And that 'New-Moon' will align perfectly with the location of the sun so as to cause a 'Total-Eclipse-Of-The-Sun'.

This will be the third total eclipse of the sun visible in the southeastern US in the past 117 years. This eclipse will be visible from the coast of Oregon the the coast of South Carolina.

Here is a post about these three eclipses:

http://zachcox.blogspot.com/2017/07/117-years-3-total-eclipses-of-sun-se-usa.html

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Here is the Washington Post article that is simplified version of a more complicated post.

TL;DR - If the 'chain of command refuses to fire' --- It could go to the Supreme Court and they could rule against him firing the special counsel and he would be stuck. Or SCOTUS may rule with him and the firing would stick. In either case if he tries he is likely 'toast'.

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https://www.washingtonpost.com/news/politics/wp/2017/06/13/how-trump-could-fire-the-special-counsel-if-he-were-foolish-enough-to-try

BLOG - https://www.lawfareblog.com/if-trump-fires-mueller-or-orders-his-firing

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The second amendment of the Constitution of the United States of America does NOT need to be repealed.

This amendment was obviated twice, 155 years ago and 115 years ago):

[1] The Emancipation Proclamation of 1863 (155 years ago) coupled with the the outcome of the US Civil War in 1865 (152 years ago) and the passage of the 13 amendment of the Constitution of the United States of America.

Well armed Militias were no longer required to put down slave rebellions in the case the federal government decided not to put them down. This was the fear that resulted in the creation of the second amendment in the first place.

[2] The Militia Act of 1902 (115 years ago) which nationalized state militias as part of the reserve forces of the US military.

The takeaway is that the National Rifle Association (NRA) and the SCOTUS both 'Have-It-Wrong'. That the US Constitution has conflicts written in is no surprise and we always defer to the later amendments and laws to guide our republic.

@FlushTheNRA

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I have heard about the "Wallace–Bolyai–Gerwien theorem" before in connection with Tangrams. However the illustration of the theorem by this video absolutely brings the theorem into perfectly clear focus. I love constructive proofs.

This video is wonderful!

And the bit about how this theorem may actually be used by self-assembling machines borders on the fantastic (using the the 'second-definition' of the word :-)

Here is the very short wikipedia article about this theorem:

https://en.wikipedia.org/wiki/Wallace%E2%80%93Bolyai%E2%80%93Gerwien_theorem

Of course while reading the article, one of the very first things that you think of next is; "What about 3 space?". After the reading the comment about the Axiom of Choice and non-measurable sets you do get the feeling that the 3d case is most likely doomed. Here is the link to that discussion:

https://en.wikipedia.org/wiki/Tarski%27s_circle-squaring_problem

I do wonder, if with suitable restrictions, ihere is a 3d version of the problem that is constructive for such restricted polyhedra? There are some very suggestive titles in the references of the second article cited above.

Enjoy!
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