Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×

Comment Re:what? (Score 1) 49

The summary "existing optical fibers -- the tiny, hollow glass strands that carry data through beams of light" is wrong. As per this link, hollow fibers are something special: Hollow-core fiber (HCF) uses air as the transmission medium, replacing the traditional optical fiber that uses "glass core" as the transmission medium. The motivation is to get lower latency, as light is faster in air than in a glass core. Almost all the world's installed optical fibers have a glass core.

Comment Re:Dark Fiber (Score 1) 49

From what I've read, when they laid the original fiber optic cables, they were bundles of hundreds of individual fibers.

That's correct for terrestrial fibers. The GP was talking about transoceanic, where there tend to be a lot fewer fibers. For example, Hibernia from 2015 had six fiber pairs. The number of pairs for new transoceanic systems has crept up since then, but it's still a dozen or fewer.

Comment Re:Truth is stranger than (Score 1) 128

After one season, it was ripped up and capped with clay and maybe an extraction system, before installing a new lawn.

From the history:

In 1978, the methane recovery system began producing some 600,000 cubic feet of raw gas from a twenty acre parcel per day. The gas was scrubbed and injected into a high pressure gas main for delivery to the City. The revenue generated supported the maintenance and operation of the Park. No longer economically viable, the gas production project ceased in 1993. With the 2001 energy crisis, a new project was started that utilized the gas to power two microturbines that can each yield about 70 kilowatts.

[ The generator is at 37 degrees 25' 42.1" N 122 degrees 04' 59.0" W if you want to find it on a map ]

Comment Re:tRuSt thE SciEnCe (Score 3, Insightful) 43

The Science: Stating the obvious -- water's wet, fire's hot, sleepless nights make for tired people

But also the less obvious: leaded gasoline has bad effects on kids, and smoking cigarettes leads to cancer and heart disease.

WHERE'S MUH MILLIONZ IN GRANT MONNNNEY?!?!

Remember that the "ethyl" (really Pb) industry and the tobacco industry spent decades trying to discredit the scientific research that was threatening them. Follow the money!

No wonder people lost faith in all our institutions -- not just "scientists"

Not helped by astroturfing industry groups, who are delighted when people put scare quotes around the word "scientists".

Comment Re:Will Wikipedia get rid of their own AI articles (Score 1) 54

They also use AI to revert vandalism which has a notorious false positive rate

Do you have anything to back up using "notorious" here? You can look at Cluebot_NG's reverts and see this kind of thing. AI doesn't have to be great when humans are this dumb.

and serves to enforce their clique of hierarchy. Then there are all the notability nuts that destroy all the human generated articles.

You wrote an article and it was deleted? The first rule of "Complain about Wikipedia Club" is never to give any specifics!

Comment Re:Fermi Paradox (Score 1) 103

Is this why we don't see aliens? They destroy themselves by trying to discover the universe's secrets?

We're unwilling to spend a tiny fraction of GDP on discovering more about particle physics. The aliens are probably unwilling to spend 25% of GDP on a 50-year unmanned (unaliened?) mission to fly by their nearest star at high speed, let alone a thousand year mission to distant Sol.

Comment Re:An old concern (Score 1) 148

The sole reason they use fresh water and not connect the two salt water bodies is exactly because of the environmentalists of the early 20th century.

Is this correct? The French started building a sea level canal in 1881 and went bankrupt in 1889. Then the Comité Technique of the successor Compagnie Nouvelle came up with a plan with eight sets of locks and two high level lakes in 1898. However, in 1906 a US engineering panel recommended a sea level canal. To quote wikipedia:

But in 1906 Stevens, who had seen the Chagres in full flood, was summoned to Washington; he declared a sea-level approach to be "an entirely untenable proposition". He argued in favor of a canal using a lock system to raise and lower ships from a large reservoir 85 ft (26 m) above sea level. This would create both the largest dam (Gatun Dam) and the largest human-made lake (Gatun Lake) in the world at that time.

The factors at play appear to be excavation costs and the seasonal flooding of the Chagres river, which the lake plan works around.

Comment Re:Any day now! (Score 1) 320

That is a bit rich, coming from the person who wrote "lazy brain", "blow smoke", "IPv6 cultists", "Bunch of wankers telling each other what geniuses they are", "arrogant asses", and more. How high or low is the bar for being an ass? I've been unfailingly polite to you and you have just come back with abuse.

Beyond your 30,000ft generalizations the only suggestion connecting these "USBs" together without upgrading everything is a horrible kludge that I re-invented.

Slashdot Top Deals

Function reject.

Working...