mersenneforum.org - The Original 'Ode To Joy' thread

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Okay... going off-topic, but this raises a mystery. My [URL="http://www.mersenne.org/report_LL/?exp_lo=1&exp_hi=100000000&exp_date=&user_only=1&user_id=Rameau&dispdate=1&B1=Get+LL+data"]v4[/URL] and [URL="http://www.mersenne.org/report_LL/?exp_lo=1&exp_hi=100000000&exp_date=&user_only=1&user_id=markr&dispdate=1&B1=Get+LL+data"]v5[/URL] results give a total of 1054 LL results:
[CODE] v4 v5
verified 683 260
unverified 15 82
bad 4 2
factored 8
total 710 344
[/CODE]But the User Summary page shows 748 LL and 252 LL-D. Thoughts?

No thoughts on statistical discrepancies tonight......

But my large transistor drive just pulsed the brake chopper at 2250A or so, and when it turned off in 2/3 of a microsecond, the voltage overshoot was only 250V!!!! (we also got less current on the second 500us shot, as the hunk of nichrome used for a resistor was getting warm)

(This system is designed like a circuit card, but the traces are 3/8" silver-flashed copper plate)

Now we just have to find out if the CFD model of heat removal through the heatpipes is valid....the fans sound like jet engines....

Minor bug there :big grin:

[code]Factors found: 1
Processing result: M42076147 has a factor: 253800742877876058321873127553656103424529
Composite factor 253800742877876058321873127553656103424529 = 440237442706656029089 * 576508761538921230961
CPU credit is 1293893770886532300800.0000 GHz-days.[/code]:popcorn:

[QUOTE=ckdo;266305][URL="http://www.mersenne.org/report_LL/?exp_lo=1&exp_hi=100000000&exp_date=&user_only=1&user_id=petrw1&dispdate=1&B1=Get+LL+data"]This[/URL] has you at 1,017 including 91 from the v4 era. :wink:[/QUOTE]

I stand corrected .... I didn't realize my summary was counting but V4 and V5

[QUOTE=ckdo;266400]Minor bug there :big grin:

[code]Factors found: 1
Processing result: M42076147 has a factor: 253800742877876058321873127553656103424529
Composite factor 253800742877876058321873127553656103424529 = 440237442706656029089 * 576508761538921230961
CPU credit is 1293893770886532300800.0000 GHz-days.[/code]:popcorn:[/QUOTE]

And lookie here:

[CODE]PrimeNet Top Trial Factoring Producers
Customize...
Top trial factoring producers for the last year.This hourly report generated Jul 14 2011 9:00PM UTC

Total | Rank Change
Rank Member Name GHz-Days Attempts Successes |90day 30day 7 day 1 day
------ -------------------- ------------ -------- --------- |----- ----- ----- -----
1 Carsten Kossendey ************ 112315 1546 | 7 9 10 10
2 TheJudger 139237.568 13694 129 | 1 1 1 1
3 nucleon 89072.620 82752 1336 | 4 1 1 1
4 ANONYMOUS 73125.987 186968 2891 | 2 1 1 1
5 shauge 68024.598 24597 105 | 40 1 1
6 Ungelovende 63423.889 73198 907 | 3 2 1 1
7 steinrar 53720.103 42973 574 | 1 1 1 1
8 amphoria 48076.310 827 5 | 4 1 1 1
9 Xyzzy 47137.780 35884 293 | 113 2 1 1
10 GIMPS Visualization 46514.275 5165382 79796 | 7 4 2 1 [/CODE]

[QUOTE=petrw1;266422]And lookie here:

[snip!]
[/QUOTE]

"Starred member". This will break some scripts.

We have never ridden a motorcycle before, but we figured that should not be a deterrent from trying, so we snagged a cute red one today. We spent the afternoon riding in a large parking lot across the street. So far we can shift to second gear and take off from a stop without stalling it. Anything over 3,000RPM is too scary for now, but riding like an old grandma is still a lot of fun!

Unbelievable but true: There is no mandatory helmet law in Arkansas!

:unsure:

These days, in VA, I think we have mandatory motorcycle training classes....two days in a large, empty parking lot at a local high school on state-owned bikes doing various exercises....

[QUOTE=Xyzzy;266458]We have never ridden a motorcycle before, but we figured that should not be a deterrent from trying, so we snagged a cute red one today. We spent the afternoon riding in a large parking lot across the street. So far we can shift to second gear and take off from a stop without stalling it. Anything over 3,000RPM is too scary for now, but riding like an old grandma is still a lot of fun!

Unbelievable but true: There is no mandatory helmet law in Arkansas!

:unsure:[/QUOTE]Wow, that's a mean machine for a newbie! No disrespect, but please be damned careful on that thing. It's not what I would have recommended as a first bike.

There's a technical term for a motorcyclist who doesn't wear a helmet. It's "corpse". I [b]strongly[/b] recommend also wearing leather gauntlets and proper leather motorbike boots whenever you ride a bike, and never ride bare-armed and/or bare-legged no matter how hot the weather. It's amazing how much skin you lose, and how easily it wears off, when (not if) you go sliding down the road.

I speak from experience. I've been riding bikes since 1974, currently ride a 1100cc Honda Pan-European and have never had a worse injury than a cracked bone in my wrist (falling off at 5mph!) or a few inconsequential grazes.

Assuming you survive the first couple of years (I'm serious), you should get a lot of fun out of biking.

Oh yes, one other thing to remember: paranoia is a survival characteristic for bikers. You can be pretty near certain that motorists are out to get you. The first couple of years I mentioned is roughly how long it takes to learn how to be somewhere else when the accidents happen.

Good luck!

Paul

I thoroughly endorse the above advice!

My sheepskin-lined leather boots were about the most
comfortable footwear I have owned.

I could list many disappointments you may experience
once the initial thrill wears off:

MPG, forced convection and "pneumatic drill syndrome" to name but 3.

David