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Comment: Re:three-factor authentication? (Score 1) 323

That would be two-factor, genius. Something you know and something you have.

Then make sure that the "something you have" stays at home. That way accessing their social media accounts would require a search warrant.

This would require cooperation from the kids not to create other accounts, etc, but for well behaved kids with a good relationship with parents, it might work until some time in High School, at which point you would hope they would have developed enough common sense and self control to avoid unintended inflammatory postings.

Comment: Re:Not OCaml, Haskell or SML at most. (Score 1) 100

by PylonHead (#46709109) Attached to: Microsoft To Allow Code Contributions To F#

Your comment is so bizarre that I almost think you must have attached it to the wrong post.

I programmed in OCaml for many years.

Yes, there is no automatic type conversion in OCaml. I certainly never said there was. Some people see this as a feature (you know exactly what you're dealing with at all times), some as an issue (you have to write tedious conversions that some languages handle for you).

Yes, there are different arithmetic operators for different numeric types. It's a little bizarre when you're used to other languages, but once you get used to it it's not an issue.

Most of my code was compiled so I didn't experience issues with compiled vs interpreted.

It certainly had a few rough edges here and there, perhaps because the community was not as large as more mainstream languages. They probably would have been ironed out if the language had really taken off.

Comment: Re:Wow ... just why? (Score 4, Informative) 100

by PylonHead (#46662735) Attached to: Microsoft To Allow Code Contributions To F#

I haven't looked at it for a while, but it's basically Microsoft's version of OCaml which is an objected oriented ML variant, (and a very slick language with a long development history).

I'm not really seeing it catch on either, but OCaml's sweet spot was writing fast code that dealt with very complex data structures. It enforced static typing, but used type inference to figure out what the types of variables were. It has powerful operators for assembling and splitting up data structures that let you write very concise code that was checked at compile time for correctness.

It is somewhat similar in flavor to Haskell (although it's probably wrong to say they're going in Haskells direction.. more that they have common ancestors).

Comment: Misleading title (Score 1) 78

by osgeek (#46112803) Attached to: Flying Snake Mysteries Revealed

These aerodynamic characteristics help to explain how the snake can glide at steep angles and over a wide range of angles of attack, but more complex models that account for 3D effects and the dynamic movements of aerial undulation are required to fully understand the gliding performance of flying snakes

Without that information, I doubt we've revealed the real mysteries.

Comment: Re:Pffft (Score 1) 723

by osgeek (#46112237) Attached to: Atlanta Gambled With Winter Storm and Lost

The problem wasn't so much the amount of snow. It was that the roads started freezing up quickly and the government authorities that are supposed to take action on closing schools and forcing trucks to use chains or divert around the city failed massively.

Once cars and trucks lost traction (we don't really buy winter tires here), stuck vehicles created enormous gridlock.

I have several friends who either spent 9+ hours getting home or just had to sleep at their offices rather than drive 20 miles.

Comment: Re:Pffft (Score 1) 723

by osgeek (#46112083) Attached to: Atlanta Gambled With Winter Storm and Lost

Not sure which forecast they're using as an excuse. I think that line is just typical CYA.

Tuesday morning, I looked at the forecast, I saw a big line of snow heading right for all of Atlanta. I was really surprised that based upon that forecast, the main county still hadn't canceled school.

When the snow started accumulating, I stopped waiting for the county to get its collective head out of its butt and I picked up my kids. Managed to get them home before the real circus started.

It's just a reminder of how you really have to be careful about putting your trust in certain systems. Each person has to take some level of personal responsibility because when big systems fail, they tend to fail in a big way.

Comment: Re:Meh (Score 2, Informative) 95

by Xiph (#45217655) Attached to: Silicon Supercapacitor Promises Built-in Energy Storage For Electronic Devices

Call me when a supercap has anything like the energy density - by any measure of cubic or weight - as a battery. Till then, they have only niche uses. I've seen various supercap articles that were about tech that was "About to change the world" for how many decades now? OK, sooner or later, they might...I'm still waiting, and I ain't gonna live for as many more decades as I've already been waiting. Till then, I'll drive my Volt.

DCFusor, you forgot one thing to be informative.

The article states their power density around 13wh/kg in one of their diagrams.
While l-ion batteries are up to 1500 wh/kg (common ones are however much less often around 500 wh/kg)

+ - Graphene is back. Is the Space Elevator back as well?->

Submitted by PanHandleDan
PanHandleDan (605249) writes "Graphene is a one-atom-thick sheet of carbon — basically a carbon nanotube in sheet form. In addition to having extraordinary conducting properties, it has a tensile strength of 130GPa, or 200 times that of steel. Until recently, attempts to create graphene in any appreciable size resulted in much weaker material. However, engineers at Columbia University seemed to have made a research breakthrough:

"The Columbia Engineering team wanted to discover what was making CVD [chemical vapor deposition] graphene so weak. In studying the processing techniques used to create their samples for testing, they found that the chemical most commonly used to remove the copper substrate also causes damage to the graphene, severely degrading its strength. Their experiments demonstrated that CVD graphene with large grains is exactly as strong as exfoliated graphene, showing that its crystal lattice is just as perfect. And, more surprisingly, their experiments also showed that CVD graphene with small grains, even when tested right at a grain boundary, is about 90% as strong as the ideal crystal."

What does this mean for the future of not just foldable displays and super long bridges, but of space tourism?"

Link to Original Source

Comment: Re:Hadoop is much better and stable (Score 3, Insightful) 37

by PylonHead (#43456405) Attached to: Google's BigQuery Vs. Hadoop: a Matchup

You understand that that number is flawed, right? He only figures in the average lives of products that Google has killed. It's kind of like looking at all the people who died of heart attacks, finding out they lived to an average of 48 years old, and then telling the general population that, on average, they're going to die of a heart attack when they're 48 years old.

But please, jump on the anti-google circle jerk. It seems to be the thing to do at the moment.

The more they over-think the plumbing the easier it is to stop up the drain.