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Search: Posts Made By: xilman
Forum: Soap Box 2021-02-24, 11:13
Replies: 684
Views: 51,271
Posted By xilman
I have found it interesting and will continue to...

I have found it interesting and will continue to read the replacement thread.

I'm a great fan of Schadenfreude.
Forum: GIMPS Board of Directors News 2021-02-24, 10:09
Replies: 12
Views: 9,790
Posted By xilman
Is this a typo, or is it some aspect of...

Is this a typo, or is it some aspect of Californian law I do not understand?

"Filed" implies past tense. July 2021 is still in the future. Should it read "will be filed" or "July 2020"?
Forum: Lounge 2021-02-23, 11:02
Replies: 1,096
Views: 84,193
Posted By xilman
A: in a lexically sorted list.

A: in a lexically sorted list.
Forum: Science & Technology 2021-02-20, 15:54
Replies: 79
Views: 5,996
Posted By xilman
An obvious solution, used throughout the world...

An obvious solution, used throughout the world where the surface gets cold but there is no permafrost, is to bury the main pipes a metre or two underground.

This doesn't prevent smaller pipes from...
Forum: Lounge 2021-02-19, 18:49
Replies: 1,677
RIP
Views: 137,399
Posted By xilman
One should never say anything but good about the...

One should never say anything but good about the dead, or so I have been told.

Accordingly, my response is: good!
Forum: Lounge 2021-02-19, 18:48
Replies: 1,677
RIP
Views: 137,399
Posted By xilman
Roger Griffen, astronomer, aged 85....

Roger Griffen, astronomer, aged 85. (https://www.joh.cam.ac.uk/stargazer-and-fellow-st-johns-dies-aged-85)
Forum: Factoring 2021-02-18, 13:35
Replies: 423
Views: 53,545
Posted By xilman
Why don't you try to find out by computation?

Why don't you try to find out by computation?
Forum: Miscellaneous Math 2021-02-17, 14:10
Replies: 31
Views: 1,247
Posted By xilman
Is this not just Dixon's algorithm? ...

Is this not just Dixon's algorithm?

Quadratic sieve is one of several optimizations to find small residues relatively quickly.
Forum: Science & Technology 2021-02-16, 10:31
Replies: 79
Views: 5,996
Posted By xilman
Drivel. There are many sources of energy and...

Drivel.

There are many sources of energy and chemical feedstock which do not include oil.

You may be too young to remember Sheik Zaki Yamani. One of his statements
was “The stone age didn’t...
Forum: Lounge 2021-02-14, 10:19
Replies: 1,096
Views: 84,193
Posted By xilman
An infinite number of mathematicians walks into a...

An infinite number of mathematicians walks into a bar. The barman says: “I can serve all of you, as long as you’re discrete.”
Forum: Lounge 2021-02-13, 17:04
Replies: 88
Views: 2,885
Posted By xilman
As many here know, I live 50% of the time near El...

As many here know, I live 50% of the time near El Paso (LP, not TX) and the remainder near Cambridge (UK, not MA).

Today the day time maximum where I presently live was 2C. The night time minimum...
Forum: Lounge 2021-02-12, 18:39
Replies: 88
Views: 2,885
Posted By xilman
According to both the good tourist guides, part...

According to both the good tourist guides, part of Hell has long since frozen over.
Forum: Lounge 2021-02-12, 18:35
Replies: 1,677
RIP
Views: 137,399
Posted By xilman
James Gunn...

James Gunn (https://www.nytimes.com/2021/02/11/books/james-gunn-dead.html) Prizewinning Science Fiction Author, Dies at 97
Forum: Soap Box 2021-02-11, 16:48
Replies: 15
Views: 430
Posted By xilman
Recycling rates are very location dependent. I...

Recycling rates are very location dependent. I believe Europe is markedly better than the US in this respect. Here in the UK we can recycle markedly more than 2 types of plastic.

Further, the...
Forum: Lounge 2021-02-07, 19:46
Replies: 88
Views: 2,885
Posted By xilman
As well as being far too expensive to manufacture...

As well as being far too expensive to manufacture and use in bulk.

CaCl2, OTOH, is a largely useless industrial by-product of the Solvay process.
Forum: Lounge 2021-02-07, 18:56
Replies: 88
Views: 2,885
Posted By xilman
Pretty much, perhaps identical, to what they use...

Pretty much, perhaps identical, to what they use in the UK, though generally used ahead of snowfall as well as afterwards.

Works well here.
Forum: Lounge 2021-02-07, 17:39
Replies: 88
Views: 2,885
Posted By xilman
Is buffalo grass vodka, aka bison grass vodka,...

Is buffalo grass vodka, aka bison grass vodka, readily available in the US?

Just poured myself a dose, at -18C of course, prompted by your post.
Forum: Lounge 2021-02-07, 17:33
Replies: 88
Views: 2,885
Posted By xilman
Good advice, of which I wasn't previously aware. ...

Good advice, of which I wasn't previously aware. Thanks!

Vodka needs to be drunk at seriously sub-zero temperatures, which is why we keep ours in the freezer. We have a jacket which is kept in...
Forum: Lounge 2021-02-07, 16:29
Replies: 88
Views: 2,885
Posted By xilman
That is what I heard too. The other end of the...

That is what I heard too. The other end of the scale, 100F, is human body temperature.

Yes, I am well aware that the latter is generally taken to be 98.4F these days, but his thermometers were...
Forum: Lounge 2021-02-07, 11:44
Replies: 88
Views: 2,885
Posted By xilman
Just started here. Drifting down very slowly....

Just started here. Drifting down very slowly. Would be horizontal but for all the bamboos and yew trees acting as windbreaks at low level.

The bamboos are performing Mexican waves in the strong...
Forum: Analysis & Analytic Number Theory 2021-02-07, 09:23
Replies: 2
Views: 386
Posted By xilman
https://en.wikipedia.org/wiki/Fermat%27s_factoriza...

https://en.wikipedia.org/wiki/Fermat%27s_factorization_method and then scroll down to "Multiplier improvement". Finally read and understand Ref. 1 ---...
Forum: LaurV 2021-02-07, 08:47
Replies: 13
Views: 853
Posted By xilman
Thanks for drawing that to my attention. Indeed...

Thanks for drawing that to my attention. Indeed hilarious.
Forum: Lounge 2021-02-06, 19:59
Replies: 88
Views: 2,885
Posted By xilman
I remember the winter of 1963, even though I was...

I remember the winter of 1963, even though I was only very young at the time. I still carry its marks on my toes which became far too cold far too often. It was the coldest winter in the UK for over...
Forum: Languages -- Ancient & Modern, Human & Machine 2021-02-06, 19:38
Replies: 5
Views: 1,531
Posted By xilman
Tempted to get a copy based on the extracts...

Tempted to get a copy based on the extracts available. She has the Ænglisc alliteration down pat.

Gēol ic wæs "Complete Old English", ISBN 978-1-473-62792-5 sealde. Þæs is gōd boc!
Forum: Puzzles 2021-02-06, 17:56
Replies: 22
Views: 986
Posted By xilman
This challenge, perhaps. I have not tried to...

This challenge, perhaps. I have not tried to solve it.

The most challenging regularly published crossword is generally held to be The Listener (https://listenercrossword.com/) which almost always...
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