@rogue: Funny that your first 3 links above are all brain-themed, because I came here to post some brain-themed news you can use!

[url=https://www.vice.com/en_us/article/884qek/this-shimmering-black-rock-is-a-2000-year-old-exploded-brain]This Shimmering Black Rock Is a 2,000-Year-Old Exploded Brain[/url] - VICE

I can see the scare-the-kiddies-straight public service ad campaign now: "This is your brain ... This is your brain on Vesuvius."

[QUOTE=ewmayer;536130]@rogue: Funny that your first 3 links above are all brain-themed, because I came here to post some brain-themed news you can use!

[url=https://www.vice.com/en_us/article/884qek/this-shimmering-black-rock-is-a-2000-year-old-exploded-brain]This Shimmering Black Rock Is a 2,000-Year-Old Exploded Brain[/url] - VICE

I can see the scare-the-kiddies-straight public service ad campaign now: "This is your brain ... This is your brain on Vesuvius."[/QUOTE]

Now we know that some people truly have "rocks for brains".

On a side note, [URL="https://ipscell.com/2015/01/ear-rocks-and-brain-sand-why-you-really-do-have-rocks-in-your-head/"]Ear rocks and brain sand: why you really do have rocks in your head[/URL].

[QUOTE=rogue;536120]
[URL="https://www.quantamagazine.org/how-pi-connects-colliding-blocks-to-a-quantum-search-algorithm-20200121/"]How Pi Connects Colliding Blocks to a Quantum Search Algorithm[/URL]
[/QUOTE]

That talks about finding the decimal expansion of Pi by analysing cases where the ratio of the block's masses is a power of 100. Am I right in assuming you could find Pi in any other base by analysing collisions where the ratio is a power of base^2 (assuming the base is an integer>1)?

Chris

[QUOTE=ewmayer;536130]@rogue: Funny that your first 3 links above are all brain-themed, because I came here to post some brain-themed news you can use!

[url=https://www.vice.com/en_us/article/884qek/this-shimmering-black-rock-is-a-2000-year-old-exploded-brain]This Shimmering Black Rock Is a 2,000-Year-Old Exploded Brain[/url] - VICE

I can see the scare-the-kiddies-straight public service ad campaign now: "This is your brain ... This is your brain on Vesuvius."[/QUOTE]

The "This is your brain..." ad campaign only goes back to the Reagan Administration.

How about

[size=4][b]Keep calm and don't be a hothead[/b][/size]

[QUOTE=chris2be8;536190]That talks about finding the decimal expansion of Pi by analysing cases where the ratio of the block's masses is a power of 100. Am I right in assuming you could find Pi in any other base by analysing collisions where the ratio is a power of base^2 (assuming the base is an integer>1)?

Chris[/QUOTE]Yup.

Think about it and it should be obvious. Hint: there is absolutely nothing special about base 10 unless you have 10 appendages.

[QUOTE=xilman;536203]Yup.

Think about it and it should be obvious. Hint: there is absolutely nothing special about base 10 unless you have 10 appendages.[/QUOTE]

Thanks. I thought it would be true, but was wondering if there was some non-obvious reason it would not work for all bases.

Chris

[URL="https://www.cnn.com/2020/02/02/world/palindrome-day-february-2-2020-intl-scli/"]Today is 02/02/2020 -- the first palindrome day in 909 years[/URL]

:mike:

[QUOTE=Xyzzy;536471][URL="https://www.cnn.com/2020/02/02/world/palindrome-day-february-2-2020-intl-scli/"]Today is 02/02/2020 -- the first palindrome day in 909 years[/URL]

:mike:[/QUOTE]

Just passed a pretty cool time where we are
Date/Time: 20/02/02 20:02:02

[QUOTE=Xyzzy;536471][URL="https://www.cnn.com/2020/02/02/world/palindrome-day-february-2-2020-intl-scli/"]Today is 02/02/2020 -- the first palindrome day in 909 years[/URL]

:mike:[/QUOTE]

Really?

What about Dec 21, 1221 ?

[QUOTE=tServo;536488]What about Dec 21, 1221 ?[/QUOTE]Which is 21-12-1221.

I don't see any palindrome there. :confused:

Oh, ISO format: 1221-12-21. Got it. :tu:

Latest (?) palindromes in just a single date format:

dd/mm/yyyy: 31/02/2013
mm/dd/yyyy: 11/02/2011
yyyy-mm-dd: 2011-11-02