Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

Daimler's Solution For Annoying Out-of-office Email: Delete It

Lawrence_Bird Re:Defeats the purpose (229 comments)

Have some respect. You can wait until the person returns to work to send them messages.

My world should not stop because you chose to get off. And waiting until the person gets back is far worse - they are going to be flooded by all the emails which nobody sent while they were out. Far better to be able to triage what came in while you were away at your own pace.

2 days ago
top

Slashdot Asks: Should Schooling Be Year-Round?

Lawrence_Bird Re:Enough (421 comments)

All that you have said is true. And this "extend the school year" stuff is just about that. And where does the burden fall? On the people who pay taxes but have no children. If parents had to pay the full cost of sending Johnny to school (and all his brothers and sisters) you would see a significant change in the education industry.

about two weeks ago
top

Floridian (and Southern) Governmental Regulations Are Unfriendly To Solar Power

Lawrence_Bird Re: Translated into English (306 comments)

Protective if its grid is more like it. The power system is designed to be decentralized only at its highest levels. Pushing power backwards through a transformer creates variable voltage is for everyone else under that transformer.

The power company doesn't give a darn if you don't connect to their grid. Your neighbors might complain about the bright reflections from your panel but that is definitely a local community issue.

Very true. And why should anyone be surprised that any company would fight to protect its legal rights as well as its own property? Likewise, why should the company and its nonsolar customers have to pay a significantly higher cost for electricity generated by home solar and fed back to the grid? So that is just another way in which solar is being subsidized.

about two weeks ago
top

Slashdot Asks: Should Schooling Be Year-Round?

Lawrence_Bird Enough (421 comments)

Schools are not daycare/nanycare for your rug rats.

about two weeks ago
top

Why Morgan Stanley Is Betting That Tesla Will Kill Your Power Company

Lawrence_Bird Re:Small-scale, real-time. (502 comments)

Vermont Yankee started commerical ops in 1972. So it lasted 42 years. New nuclear designs are.. gasp.. a lot better. Who would have thought that things don't stand still and technology improves for things other than solar? I would also remind that the semiconductor industry is not exactly a clean industry either - lots of nasty chemicals and water use. And they even have a superfund site (Fairchild).

One could argue that the solar plant would require as much, if not more, security than the nuclear facility. Given that this would be a plant providing substantial power, the goal of the attack would be to wipe the generation capacity out.

In 1988, Sandia National Laboratories conducted a test of slamming a jet fighter into a large concrete block at 481 miles per hour (775 km/h).[15][16] The airplane left only a 2.5-inch-deep (64 mm) gouge in the concrete. Although the block was not constructed like a containment building missile shield, it was not anchored, etc., the results were considered indicative. A subsequent study by EPRI, the Electric Power Research Institute, concluded that commercial airliners did not pose a danger.[17]

about two weeks ago
top

Why Morgan Stanley Is Betting That Tesla Will Kill Your Power Company

Lawrence_Bird Re:Small-scale, real-time. (502 comments)

Attack the source when the numbers don't say what you want them to say. Get real

Pointing facts from the cited material is not an attack. Get real.

I've seen numerous reports from all over the country from dozens of different groups that say solar can be installed without subsidy cheaper than current nuclear and within striking distance of even the cheapest natural gas.

Cite them please.

A 10 year payback is about a 6% ROI. That's a phenominal rate of return. After 10 years you are guaranteed 15 years of free power

Complete nonsense. You have no way of stating any IRR because you do not know: cost of my electric, cost of transmission, credits for feeding back to grid, my total electric use, % of electric use provided by solar, cost of inverter replacement (material and labor).

Every company that made solar panels in the 1980's is still making solar panels.

Every one? You sure? What about mergers? What happens to warranty then? Will you still have the records? Will the company still have the records? Further, the warranty is only good for the original owner. Most people do not live in the same home for 25 years so there is no resale value to that warranty.

How the solar is connected to the grid is entirely dependent on local codes, net metering rules and what equipment is installed.

Yes and? How many localities allow you to still feed the grid during an outage? How many allow an "automatic transfer switch"? And what does installation of such a feature which meets local codes do to your payback period? (other than lengthen it?)

It's so blatant it's almost as if you are a paid sock puppet.

Seems to me you are the one doing the commerical for Pets.com

about two weeks ago
top

NFL Fights To Save TV Blackout Rule Despite $9 Billion Revenue

Lawrence_Bird some truth to both sides of this (216 comments)

yes, a lot of teams have put their ticket prices in the stratosphere and have seen waiting lists vanish and in some cases, fail to sell tickets (season or otherwise). When the empty seats are not a large number the team ownership will often "buy" the surplus to avoid the blackout.

But getting rid of the black out could be even worse on revenues. At say 80K seats per game X 10 games, thats 800K tickets at .. $100 per (yes some are more, some may be less) thats $80 million in revenue. Remember that $9B of TV revenue is distributed across 32 teams, about $280M each. So that original $80M in ticket revenue is a big chunk of total team revenue. If a large % of attendees now decide to save money and just watch at home, demand plummets and with it revenue (either through decreased sales or sales at much lower price). If the NFL goes cable only you can fully assume your cable bill will rise. And those who do not use cable (ie, OTA only) will suffer.

Very much an exercise in tipping points.

about two weeks ago
top

Why Morgan Stanley Is Betting That Tesla Will Kill Your Power Company

Lawrence_Bird Re:Small-scale, real-time. (502 comments)

Then you should write Harry Reid and tell him to stop blocking Yucca Mtn.

about two weeks ago
top

Why Morgan Stanley Is Betting That Tesla Will Kill Your Power Company

Lawrence_Bird Re:Small-scale, real-time. (502 comments)

You quote from another brokerage report - who undoubtedly has interest in pushing this out to clients of certain stocks it holds positions in. In addition, the figures for solar are for the SouthWest US only. And with other caveats.

A neighbor recently had me sit in on a presentation by a local solar installer. Were it not for the various rebates and credits (some of which are lost if you are low income) the "pay back" period would be significantly longer, on the order of 10 years. We were also not clear that he had the correct figures concerning transmission costs from the local electric (they realize you will still get power from them). And I wonder who will be around to make good on those 25 year guarantees?

Further, solar DOES NOT WORK IN A BLACK OUT because it feeds back into the grid. We were told refrigerator sized batteries were available at substantial cost which could be used in a power outtage. Most people do not realize that solar power does not equate to always available power without significant additional cost and inconvenience.

about two weeks ago
top

MIT Considers Whether Courses Are Outdated

Lawrence_Bird Administrators with too much time (205 comments)

on their hands. Trying to find some way to justify their astronomical pay and benefits.

about two weeks ago
top

Why Morgan Stanley Is Betting That Tesla Will Kill Your Power Company

Lawrence_Bird You believe MS? (502 comments)

I mean really, come on. When a broker tells you to buy, it is time to sell (and vice versa).

about two weeks ago
top

Hackers Plundered Israeli Defense Firms That Built 'Iron Dome' Missile Defense

Lawrence_Bird Re:Gee, isn't Iron Dome supposed to be worthless? (184 comments)

Don't assume that it is the Chinese that did this hack (if the details are even true). Attribution is very difficult in the world of cyber crime/espionage.

about three weeks ago
top

Satellite Images Show Russians Shelling Ukraine

Lawrence_Bird Taking them at face value eh? (582 comments)

At least by the headline it seems so. I took a look this morning at two of them and you can clearly see some areas in the "pre" that had "bomb craters" just as the purported second "post" image. Also notice differences in resolution.

These images - just like anything the Russians or Ukranians give - should not be taken at face value.

about three weeks ago
top

AP Computer Science Test Takers Up 8,000; Pass Rate Down 6.8%

Lawrence_Bird AP is a scam (119 comments)

these classes are not equivalent to a college class and have been debunked often. You want to show you know how to program on your college application? LIst the apps you have created for Android/iOS. List your involvement in open source projects.

Any student considering AP (anything) would do better to take a summer class at the local community (or better) college. Calc, physics, etc... Get an A and you can probably a) transfer the credit and b) do better in the next class

about three weeks ago
top

China Plans Particle Colliders That Would Dwarf CERN's LHC

Lawrence_Bird Re:Good luck with that (219 comments)

interesting, thanks

about a month ago
top

Lawrence Krauss: Congress Is Trying To Defund Scientists At Energy Department

Lawrence_Bird Good News! (342 comments)

Finally off the government dole. Let private industry develop the technologies. If there really is a market they will exploit it better than our wonderfully efficient government does.

about a month ago
top

China Plans Particle Colliders That Would Dwarf CERN's LHC

Lawrence_Bird Re:Good luck with that (219 comments)

I doubt that China could build the magnets in use now at LHC on their own and certainly you will need at least that much for a super proton/proton collider.

Can you really compare the sophistication/complexity of Atlas/CMS or even D0/CDF to neutrino dectors?

Does China have the systems capabilities to handle the data output of these types of experiments?

The biggest problem China faces is they are not likely to get much help from western governments due to the technology transfer aspects.

about a month ago
top

For Half, Degrees In Computing, Math, Or Stats Lead To Other Jobs

Lawrence_Bird Shocking! (174 comments)

And you know what? I bet the same holds true of accouting, finance, marketing and certainly humanities degrees too.

about a month ago
top

China Plans Particle Colliders That Would Dwarf CERN's LHC

Lawrence_Bird Good luck with that (219 comments)

LEP operated around 209 GeV in 27Km so this Chinese proposal of 240 GeV at 52Km is.. underwhelming. Realize things like labor cost less in China but this isn't a high rise they are making. LHC cost amost $5B to build. Where is China getting the magnets? I'm not sure US export controls will allow a sale. And then there are those pesky detectors which are technological marvels themselves.

Still unfortunate that we can't scale up anti-proton production to levels necessary for high luminosity.

about a month ago

Submissions

top

Plummeting BDP on High Speed Lines

Lawrence_Bird Lawrence_Bird writes  |  more than 2 years ago

Lawrence_Bird (67278) writes "In trying to track down a tcp problem today I've stumbled upon what seems to be a nasty little issue — incredibly low ping times!

I have a 25Mbps line and in checking RTT to places I frequent, I found that the times are tanking. Not that long ago, a fast link was like 60ms with most around 90-120ms, twice that overseas. Now many are coming in the 45-80ms range. But quite a few others, like youtube (6ms) google (7.5ms), apple (15ms) cbs.com (20ms) slashdot (30ms) , are a lot shorter.

This presents a very difficult problem. How to best tune RWIN? The rule of thumb had been to make rwin just greater than your typical BDP and most information on the topic is written at a time when high speed lines were starting to appear but latency was still high (>100ms). But now we have a situation where yes, rated speeds are high, but latency has dived to next to nothing for major internet sites but may still be high(er) elsewhere creating not a 2 or 3 to 1 range of RTTs but instead as high as 25 or 30x!

To optimize for google would require setting it to under 24,000 bytes. In fact, any average ping time below 48ms will (I think) saturate if RWIN is over 65,535 (the point at which scaling would take over). Yet there are still a goodly number of places that are over 80ms (say stanford.edu) and of course europe and asia can be 200ms.

So I am curious what others are doing to tune RWIN to provide the necessary throughput on the longer latency runs against these now incredibly short pings"
top

Ron Paul Raises More Than $3M Online in 18 hours

Lawrence_Bird Lawrence_Bird writes  |  more than 6 years ago

Lawrence_Bird (67278) writes "Republican Presidential candidate has raised in excess of $3 million since midnight. Grassroots supporters organized a 'money bomb' campaign for 5 November — Guy Fawkes day (remember, remember the 5th of Novemeber). At about 5:50pm EST, the total passed the $3 mio mark and is on a pace for over $4 mio by midnight. The NY Times political blog has more details."
top

Ron Paul More Cash On Hand Than McCain

Lawrence_Bird Lawrence_Bird writes  |  more than 7 years ago

Lawrence_Bird (67278) writes "Longshot Republican presidential hopeful and internet phenom Ron Paul (TX-14) reported today his campaign has more cash on hand ($2.4M) than does John McCain ($2M) and only slightly less than Mitt Romney ($3M excluding his personal loans). Paul's spokesman noted(nytimes) that most of the donations were via the internet and that Paul is able to run a much more frugal campaign (he has only 11 staffers) because of his wide spread support via sites such as youtube and meetup. The campaign was also the first to provide an iPhone specific platform to allow access to campaign materials."

Journals

Lawrence_Bird has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>