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Search: Posts Made By: xilman
Forum: Lounge 2021-01-23, 21:38
Replies: 1,255
Views: 83,883
Posted By xilman
At least the UK has escaped that punishment....

At least the UK has escaped that punishment. Though the pubs are still closed :sad:
Forum: Soap Box 2021-01-23, 18:50
Replies: 165
Views: 21,795
Posted By xilman
True, but that concentrates attention on intent,...

True, but that concentrates attention on intent, not on offen{c,s}e.
Forum: Soap Box 2021-01-23, 18:42
Replies: 165
Views: 21,795
Posted By xilman
A dictum of mine: offen{c,s}e is in the mind of...

A dictum of mine: offen{c,s}e is in the mind of the offended.

From one dude to another (and I may well be older than either you or Uncwilly).
Forum: Miscellaneous Math 2021-01-23, 11:32
Replies: 85
Views: 4,464
Posted By xilman
False. The factor you find may well be the...

False.

The factor you find may well be the number itself.

Two distinct prime factors may each be (P-1)-smooth for a particular choice of (B1,B2) but no smaller ones.

4369 = (2^4+1)*(2^8+1)...
Forum: Information & Answers 2021-01-22, 18:14
Replies: 7
Views: 210
Posted By xilman
There are two kinds of computer users: those who...

There are two kinds of computer users: those who take frequent regular backups and those who lose important data.

Everyone, but everyone (myself included) learns this the hard way.
Forum: Hardware 2021-01-22, 15:54
Replies: 16
Views: 637
Posted By xilman
Even that is a non-trivial undertaking when one...

Even that is a non-trivial undertaking when one takes into account the resources needed for the linear algebra stages before the factorization is complete.
Forum: Soap Box 2021-01-21, 19:12
Replies: 1,483
Views: 82,521
Posted By xilman
:popcorn:

:popcorn:
Forum: Hardware 2021-01-21, 12:30
Replies: 16
Views: 637
Posted By xilman
How interested are you? If you are...

How interested are you?

If you are particularly interested I could recommend writing your own software, using publicly available sources and algorithms as a starting point.

It might take you...
Forum: Lounge 2021-01-21, 08:27
Replies: 382
Views: 46,175
Posted By xilman
:tu:

:tu:
Forum: Soap Box 2021-01-19, 16:20
Replies: 1,483
Views: 82,521
Posted By xilman
It has been reported that three former first...

It has been reported that three former first couples (Clinton, Bush & Obama) will meet with the Bidens for a wreath-laying ceremony at Arlington.

It would be nice if they had an evening together...
Forum: Science & Technology 2021-01-19, 08:32
Replies: 64
Views: 8,639
Posted By xilman
Why do you want to make it visible from the...

Why do you want to make it visible from the earth?

Use a few dozen nukes to dig 100-metre craters in a geometrical arrangement --- a diagram of the theorem of Pythagorus, for instance.

Then...
Forum: Science & Technology 2021-01-18, 17:14
Replies: 64
Views: 8,639
Posted By xilman
As I noted earlier in this thread, high-altitude...

As I noted earlier in this thread, high-altitude orbits are unstable to lunar and planetary perturbations over the course of a few megayears.

Also as noted earlier, leaving stuff on the moon is a...
Forum: Lounge 2021-01-18, 16:51
Replies: 85
Views: 3,891
Posted By xilman
At the other end of the scale, I have dipped my...

At the other end of the scale, I have dipped my hands in liquid nitrogen on a number of occasions.

One of our favourite tricks with newbie chemists was to put some rubber tubing in LN2 and spray...
Forum: Lounge 2021-01-18, 07:37
Replies: 85
Views: 3,891
Posted By xilman
Yes, having low humidity is critical.

Yes, having low humidity is critical.
Forum: Science & Technology 2021-01-18, 07:34
Replies: 64
Views: 8,639
Posted By xilman
But you may not. ...

But you may not.

https://en.wikipedia.org/wiki/Oklo
Forum: Lounge 2021-01-17, 19:04
Replies: 85
Views: 3,891
Posted By xilman
Only mildly surprising to me. I've spent 20...

Only mildly surprising to me.

I've spent 20 minutes at 105C and a few minutes at 120C without significant discomfort.

Some USAF experiments back in the 70s showed that people can survive 120C...
Forum: Soap Box 2021-01-15, 17:48
Replies: 297
Views: 24,516
Posted By xilman
You live in one of the worst places in the UK for...

You live in one of the worst places in the UK for buying fresh fish. You are too far from the coast.
Forum: Soap Box 2021-01-15, 17:34
Replies: 297
Views: 24,516
Posted By xilman
Buying fresh fish isn't too difficult in the UK,...

Buying fresh fish isn't too difficult in the UK, in my experience, though it depends on where you live and which species you want to buy.

Buying fresh seafood which is not fish (crustaceans,...
Forum: Soap Box 2021-01-15, 16:07
Replies: 1,483
Views: 82,521
Posted By xilman
Do I detect an element of personal interest here?...

Do I detect an element of personal interest here? ;-)
Forum: Soap Box 2021-01-15, 15:57
Replies: 297
Views: 24,516
Posted By xilman
Brazilian variant already in the UK "not of...

Brazilian variant already in the UK "not of concern". This is one of two variants.

https://www.bbc.co.uk/news/health-55676637

Could be worse.
Forum: Miscellaneous Math 2021-01-15, 15:09
Replies: 6
Views: 219
Posted By xilman
I've not see the book itself so can't tell...

I've not see the book itself so can't tell whether one of the six proofs of the infinitude of primes is the very elegant one based on the factorization of Mersenne numbers and Fermat numbers.

The...
Forum: Lounge 2021-01-14, 18:09
Replies: 1,087
Views: 78,711
Posted By xilman
"Knock knock" "Race condition" "Who's...

"Knock knock"

"Race condition"

"Who's there?"
Forum: Lounge 2021-01-14, 18:08
Replies: 1,087
Views: 78,711
Posted By xilman
Is a "crevice cleaner" akin to a...

Is a "crevice cleaner" akin to a "cherry-picker"?
Forum: Soap Box 2021-01-14, 18:06
Replies: 297
Views: 24,516
Posted By xilman
TO some extent. To be fair, it is a serious...

TO some extent. To be fair, it is a serious high-stakes game.
Forum: Lounge 2021-01-14, 17:12
Replies: 1,087
Views: 78,711
Posted By xilman
Just seen this one:

Just seen this one:
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