Forgot your password?
typodupeerror

+ - Some raindrops exceed their terminal velocity->

Submitted by sciencehabit
sciencehabit (1205606) writes "New research reveals that some raindrops are “super-terminal” (they travel more than 30% faster than their terminal velocity, at which air resistance prevents further acceleration due to gravity). The drops are the result of natural processes—and they make up a substantial fraction of rainfall. Whereas all drops the team studied that were 0.8 millimeters and larger fell at expected speeds, between 30% and 60% of those measuring 0.3 mm dropped at super-terminal speeds. It’s not yet clear why these drops are falling faster than expected, the researchers say. But according to one notion, the speedy drops are fragments of larger drops that have broken apart in midair but have yet to slow down. If that is indeed the case, the researchers note, then raindrop disintegration happens normally in the atmosphere and more often than previously presumed—possibly when drops collide midair or become unstable as they fall through the atmosphere. Further study could improve estimates of the total amount of rainfall a storm will produce or the amount of erosion that it can generate."
Link to Original Source

Comment: Re:Correlation Does Not Imply Causation (Score 1) 271

by Reziac (#47757991) Attached to: The Evolution of Diet

Most diet failures I've observed happen not because the diet doesn't work, but because once they reach their target weight, they revert to their old diet, and naturally revert to the old pattern of weight gain. This is regardless of lifestyle.

Fact is, you have to pick a diet you can live with the rest of your life. Cuz otherwise it will "fail" as soon as you stop following it.

Comment: Re:ha! Inuit diet. Hazda diet. (Score 1) 271

by Reziac (#47757801) Attached to: The Evolution of Diet

Just because there's less or no marbling in wild game doesn't mean that "lean meat" was all they ate. Toward fall, wild game carry a lot of fat. And from what I've read, the fatty tissues were the most-prized portions, and consumed first -- being not only the most calorie-dense, but more prone to spoilage with time (fats go rancid, while meat can be preserved by drying).

Comment: Jehova's Witnesses Knew This Years Ago (Score 1) 272

by turgid (#47750561) Attached to: Numerous Methane Leaks Found On Atlantic Sea Floor

Blimey, in about 1998 this old guy from the Jo-Hos knocked on my door and presented me with some literature including something about how "all scientists" believe in god, especially the Great Fred Hoyle, so God must be there.

It also said that "scientists are telling us" about this vast, untapped wealth of hydrocarbon deposits on the deep sea beds in the form of these methane thingy-ma-bobs, so God had provided us with all the energy we'll ever need. He's a great guy that God dude! He didn't mention atmospheric carbon dioxide concentrations and global warning, though.

So, the Jo-Hos are right. God is really there! And we will never run out of energy!

Comment: Slackware Forever (Me Too!) (Score 1) 766

by turgid (#47750403) Attached to: Choose Your Side On the Linux Divide

Slackware does things The Right Way(TM). I've been using it since 1995 as my main distro with a brief detour into SLAMD64 in 2007 when I bought a 64-bit AMD and Slackware was still x86-32.

I've had the misfortune to have to suffer Debian. RedHat/CentOS, Ubuntu and Arago for work over the years, but Slackware is the best. Everything I've learned from Slackware has empowered me to be productive with all of those other distributions.

Comment: Re:I hope not (Score 1) 493

by turgid (#47747015) Attached to: If Java Wasn't Cool 10 Years Ago, What About Now?

why?

Learning a language that comes from a completely different school of thought (i.e. "paradigm") will give you a far larger perspective than only having learned one language or family of languages. For example, if all you ever saw was C++, Java and C# your world view would be extremely limited. Someone who has learned a little FORTH, LISP and Smalltalk, not to mention various assembly languages, would be an order of magnitude more productive than you, produce fewer bugs and be able to think of more good solutions to difficult problems.

If all you ever do is write GUIs for the corporate Oracle or MS database, then stay in your C# paradise.

Comment: Re:I had to switch my stepson's junior high school (Score 1) 414

by Reziac (#47742489) Attached to: South Carolina Student Arrested For "Killing Pet Dinosaur"

Fortunate that you had another school to switch to. Many places, you have a choice of one.

And I'm with the other two replies... this was the time to start a rifle club!

I don't think it's coincidence that we also have the insanity of "trigger warnings" lest someone be traumatized anew by the mere mention of whatever evil befell them... in Another Forum[TM] I griped that soon mere breathing will require a 'trigger warning' lest it traumatize someone who once had a sip of water go down the wrong way.

Cuz, ya know, the mere mentioning of something (eg. a gun) is the same as doing horrible things with it.

Comment: Re:What about Confidence (Score 1) 243

by Reziac (#47742385) Attached to: It's Dumb To Tell Kids They're Smart

"Unless kid #2 in fact had tried very hard but still failed, and says to himself, "Even my best attempt was not good enough. Next time I won't try so hard; that way, if I fail, I can just claim/believe it's because I didn't try my best."

THAT is what happens when no matter how hard you try, your best is never good enough. Parents, take heed: if you regard anything less than perfect success as "failure", you will raise a kid who is afraid to try.

Comment: Re: Jurisdiction 101 (Score 3, Interesting) 391

by turgid (#47727669) Attached to: UK Police Warn Sharing James Foley Killing Video Is a Crime

Errr... the UK still has an reasonable approximation of a well-functioning court system. That the police say something is illegal isn't enough to get you thrown in jail.

It is under Tony Blair's Anti-Terror Laws. You only need to be suspected of something that could be vaguely related to terrorism to be locked up. No jury trial involved, just the police, some politicians and a few judges.

Comment: Re:Code more.. (Score 1) 548

by turgid (#47723461) Attached to: Ask Slashdot: What Do You Wish You'd Known Starting Out As a Programmer?

Very wise words.

I'd add to that: write unit tests for your code (preferably before you write the code). You'll understand how it works and where it's broken quicker and better and free up your brain cycles more for the creative design part.

You will learn and improve much more quickly with much less stress.

Comment: LISP (Score 1) 548

by turgid (#47723383) Attached to: Ask Slashdot: What Do You Wish You'd Known Starting Out As a Programmer?

Back in the day (80's 8-bit micros) I started on BASIC and Z80 machine code followed by a little FORTH.

The one thing I really wish I'd known about - or understood - was what LISP really is. It was often described in the popular computing press as a language "for processing lists."

How very wrong. The reality is so much better.

I didn't seriously look at the lisp family of languages until about 6 or 7 years ago. I really wish I'd looked 25 years sooner.

Comment: Re:Linux will NEVER be a Desktop - Every Day OS. (Score 1) 720

by orasio (#47719545) Attached to: Linus Torvalds: 'I Still Want the Desktop'

I use Windows 8 at one of my computers at home.
Those instructions don't work there. You need to do some additional steps before, to summon the "Open Network Center" option.

In any case, what I was responding to the troll was not that Ubuntu has a great magic and beautiful way of changing the IP, only that it doesn't require a console.
Like you explained, in most Windows versions, the process is more or less the same, which was my point.

Too much is not enough.

Working...