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Search: Posts Made By: Dr Sardonicus
Forum: Lounge 2021-03-09, 00:57
Replies: 196
Views: 28,332
Posted By Dr Sardonicus
Followup to this post...

Followup to this post (https://www.mersenneforum.org/showpost.php?p=564642&postcount=152)...

Trump policy that weakened wild bird protections is revoked...
Forum: Lounge 2021-03-08, 02:08
Replies: 1,344
Views: 83,089
Posted By Dr Sardonicus
There may be some kind of dispute between the...

There may be some kind of dispute between the USAF and Northrop Grumman.

The problem seems to be replacing "load heat exchanger cores."

Many years ago, I had a car whose heat exchanger core...
Forum: Soap Box 2021-03-06, 13:05
Replies: 16
Views: 1,187
Posted By Dr Sardonicus
Antivirus software creator charged with cheating...

Antivirus software creator charged with cheating investors (https://apnews.com/article/john-mcafee-social-media-indictments-money-laundering-arrests-eb5ed1605f98693099fe8e3c70fb5405)
Forum: Science & Technology 2021-03-06, 00:56
Replies: 70
Views: 4,884
Posted By Dr Sardonicus
It appears that the $8 million pledged by PR...

It appears that the $8 million pledged by PR toward clearing the wreckage, as reported in this post (https://www.mersenneforum.org/showpost.php?p=570001&postcount=66), will be but a fraction of what...
Forum: Science & Technology 2021-03-05, 14:15
Replies: 88
Views: 6,679
Posted By Dr Sardonicus
As this recent news story shows, OPEC+ is...

As this recent news story shows, OPEC+ is continuing to do its part to encourage renewable energy... OPEC And Allies Keep Oil Production Steady As Saudi Arabia Urges 'Caution'...
Forum: Lounge 2021-03-04, 17:40
Replies: 1,084
Views: 70,228
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: 1,344
Views: 83,089
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: 480
Views: 59,273
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: 619
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: 1,344
Views: 83,089
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: 1,326
Views: 99,135
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: 376
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: 1,326
Views: 99,135
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: 379
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: 480
Views: 59,273
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: 256
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: 619
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: 619
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: 1,584
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: 1,584
Posted By Dr Sardonicus
The word "sabotage" comes to mind...

The word "sabotage" comes to mind...
Forum: Lounge 2021-03-01, 17:25
Replies: 1,344
Views: 83,089
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: 333
Views: 55,212
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: 1,584
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: 72,723
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: 1,683
RIP
Views: 140,484
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)
Showing results 1 to 25 of 1000

 
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