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Search: Posts Made By: Dr Sardonicus
Forum: Lounge 2021-03-04, 17:40
Replies: 1,080
Views: 69,491
Posted By Dr Sardonicus
SpaceX Starship lands upright, then explodes in...

SpaceX Starship lands upright, then explodes in latest test (https://apnews.com/article/spacex-starship-lands-then-explodes-latest-test-9c93e49fdc17dc98dcfc82120f3f117f)
Forum: Lounge 2021-03-04, 17:02
Replies: 1,341
Views: 82,520
Posted By Dr Sardonicus
Assuming that the brakes exert a constant force...

Assuming that the brakes exert a constant force independent of how heavily laden the vehicle may be, and cheerfully ignoring other effects of increasing the weight of a vehicle, simple-minded...
Forum: Science & Technology 2021-03-04, 15:52
Replies: 477
Views: 58,524
Posted By Dr Sardonicus
TSUNAMI MESSAGE NUMBER 3...

TSUNAMI MESSAGE NUMBER 3 (https://www.tsunami.gov/events/PHEB/2021/03/04/21063000/3/WEPA40/WEPA40.txt)
Forum: Forum Feedback 2021-03-04, 14:21
Replies: 18
Views: 484
Posted By Dr Sardonicus
Because of this, apart from double checks on...

Because of this, apart from double checks on previously LL tested Mp, very few LL tests will be run in future on any Mp, unless it has first tested as a probable prime (i.e. the PRP test fails to...
Forum: Lounge 2021-03-03, 23:55
Replies: 1,341
Views: 82,520
Posted By Dr Sardonicus
An obvious way to make more room inside is to...

An obvious way to make more room inside is to take out some of the seats. I don't know whether this was done with the Expedition involved in the crash.

I leave it as an exercise for the reader...
Forum: Lounge 2021-03-03, 17:55
Replies: 1,323
Views: 97,782
Posted By Dr Sardonicus
It's obviously political. They were getting a...

It's obviously political. They were getting a lot of static for rules they weren't seriously enforcing anyway, so might as well drop them.

Texans can live with that. At least most of them. Just...
Forum: Software 2021-03-03, 17:30
Replies: 6
Views: 274
Posted By Dr Sardonicus
Yes, it was a typo. As the term "power series"...

Yes, it was a typo. As the term "power series" indicates, it's k*2^n +/- 1.

From the link in the OP,See Payam Number (https://mathworld.wolfram.com/PayamNumber.html)
Forum: Lounge 2021-03-03, 14:23
Replies: 1,323
Views: 97,782
Posted By Dr Sardonicus
Texas becomes biggest US state to lift COVID-19...

Texas becomes biggest US state to lift COVID-19 mask mandate (https://apnews.com/article/texas-lifts-covid-19-mask-mandate-ed7cd1b065a1afd71175f255fb5148aa) (my emphasis)
Forum: chalsall 2021-03-03, 12:49
Replies: 10
Views: 314
Posted By Dr Sardonicus
Apparently there is something relevant your...

Apparently there is something relevant your instrumentation is not measuring. The question then is, what?

Apart from that, why is the situation "interesting?"
Forum: Science & Technology 2021-03-03, 12:33
Replies: 477
Views: 58,524
Posted By Dr Sardonicus
Strong earthquake shakes central Greece, felt in...

Strong earthquake shakes central Greece, felt in Balkans (https://apnews.com/article/europe-kosovo-montenegro-earthquakes-greece-5cbaa10cebbbad65964966b7a276420c)
Forum: Miscellaneous Math 2021-03-02, 16:50
Replies: 5
Views: 243
Posted By Dr Sardonicus
Let n > 2, and let Q be the largest prime less...

Let n > 2, and let Q be the largest prime less than n!. Let k be the least integer greater than 1 for which n! + k is prime.

Clearly k can be composed only of prime factors greater than n. If p...
Forum: Forum Feedback 2021-03-02, 14:37
Replies: 18
Views: 484
Posted By Dr Sardonicus
Ah, the examples tell the tale. When you shift...

Ah, the examples tell the tale. When you shift the initial value k bits to the left, it is no longer the constant value 2 being subtracted after each squaring. (This is not mentioned in the given...
Forum: Forum Feedback 2021-03-02, 00:53
Replies: 18
Views: 484
Posted By Dr Sardonicus
It's not entirely clear to me how the double...

It's not entirely clear to me how the double checking of an LL test using a left-shifted initial value is supposed to work. From what I have read,

1) The LL left-shifted double-check is only done...
Forum: Soap Box 2021-03-01, 23:44
Replies: 25
Views: 1,543
Posted By Dr Sardonicus
There's a Class action lawsuit...

There's a Class action lawsuit (https://www.truthinadvertising.org/wp-content/uploads/2020/06/Mondigo-v-Epson-America-complaint.pdf) filed against Epson on May 20, 2020. A previous such filing was...
Forum: Soap Box 2021-03-01, 17:38
Replies: 25
Views: 1,543
Posted By Dr Sardonicus
The word "sabotage" comes to mind...

The word "sabotage" comes to mind...
Forum: Lounge 2021-03-01, 17:25
Replies: 1,341
Views: 82,520
Posted By Dr Sardonicus
OK, the story itself isn't that outlandish, but...

OK, the story itself isn't that outlandish, but the headline sure is an attention-getter:

US probing engine fires in nearly 1.9M Toyota RAV4 SUVs...
Forum: FermatSearch 2021-03-01, 16:38
Replies: 332
Views: 54,535
Posted By Dr Sardonicus
This will necessitate another revision besides an...

This will necessitate another revision besides an addition to the list of known factors at http://www.prothsearch.com/fermat.html. The exponent 40 is (soon to be was) on the "Character unknown" list...
Forum: Soap Box 2021-03-01, 14:50
Replies: 25
Views: 1,543
Posted By Dr Sardonicus
Europeans get 'right to repair' for some...

Europeans get 'right to repair' for some electrical goods (https://apnews.com/article/technology-europe-environment-berlin-europe-65168395d1fc7dc0e22792722c93140d)
Forum: Lounge 2021-03-01, 14:32
Replies: 977
Views: 71,823
Posted By Dr Sardonicus
From the context, I read "first post-pandemic...

From the context, I read "first post-pandemic race" as "first race since the pandemic began."

I bet it felt good to be back on a track again! :tu:

Hmm, doesn't look like all the spectators were...
Forum: Lounge 2021-03-01, 13:37
Replies: 1,682
RIP
Views: 139,215
Posted By Dr Sardonicus
Irv Cross...

Irv Cross (https://www.chicagotribune.com/sports/breaking/ct-irv-cross-obit-nfl-today-northwestern-hammond-20210301-xbv6yghkorcwfkszj5ipe6empi-story.html)
Forum: Soap Box 2021-02-28, 00:34
Replies: 17
Views: 384
Posted By Dr Sardonicus
No legal prohibition to a convicted felon...

No legal prohibition to a convicted felon becoming US president AFAIK. IIRC the now late Lyndon Larouche ran for president while incarcerated as a convicted felon (but did not come anywhere close to...
Forum: Lounge 2021-02-28, 00:17
Replies: 1,323
Views: 97,782
Posted By Dr Sardonicus
J&J’s 1-dose shot cleared, giving US 3rd COVID-19...

J&J’s 1-dose shot cleared, giving US 3rd COVID-19 vaccine (https://apnews.com/article/ap-top-news-anthony-fauci-coronavirus-pandemic-f13611719ad8d1655ed7b354af75a9a9)
Forum: Lounge 2021-02-27, 16:17
Replies: 195
Views: 27,685
Posted By Dr Sardonicus
They look like either Common Grackles, or...

They look like either Common Grackles, or possibly some other kind of blackbird. Brewer's Blackbirds and Rusty Blackbirds are not entirely ruled out by coloration, due to unfavorable light...
Forum: Soap Box 2021-02-27, 13:49
Replies: 17
Views: 384
Posted By Dr Sardonicus
This is from a recent AP story about the CPAC...

This is from a recent AP story about the CPAC shindig (https://apnews.com/article/donald-trump-ted-cruz-elections-c5273f2cf5e1c478dd0d9b11b902bdf9).

Never mind the election, let's make him an...
Forum: Reading 2021-02-26, 13:26
Replies: 15
Views: 2,835
Posted By Dr Sardonicus
I tried to find out how much power a slug of...

I tried to find out how much power a slug of corium produces, without much success. I read that a lot of the heat is produced by the radioactive decay of short-lived isotopes. When the stuff hits...
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