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Comments

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Italian Scientists Demonstrate Cold Fusion?

hcg50a Just need repeatable results, not a theory (815 comments)

I call BS.

For every nickel atom converted to copper, you need about 4 additional neutrons to make stable copper (they state there is no left over radioactivity). Where are those coming from? Those are probably harder to get than shoving the single proton into the nucleus, which is hard enough!

Not plausible. But repeatable results by independent investigators is always plausible. And they don't have that either.

more than 3 years ago
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Physicists Say Graphene Could Create Mass

hcg50a Re:Can anybody summarize TFA? (184 comments)

The /. title of this article is wrong, stupid and misleading.

The title of TFA is "Dynamical mass generation via space compactification in graphene", which is mostly incomprehensible.

The abstract sez "Fermions in a graphene sheet behave like massless particles. We show that by folding the sheet into a tube they acquire non-zero effective mass as they move along the tube axis. That is, changing the space topology of graphene from 2D to 1D (space compactification) changes the 2D massless problem into an effective massive 1D problem."

A plain english annotated translation is "Electrons in a graphene sheet behave like massless particles. We show that by folding the sheet into a tube they behave like massive particles as they move along the tube axis. That is, changing the shape of graphene from 2D to 1D changes the 2D massless problem into an effective 1D massive problem, which may be easier to solve or model or understand in certain respects.

Note electrons have the same real mass in both cases. Mass is not being created or destroyed.

more than 2 years ago
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Algae Could Be the Key To Ultra-Thin Batteries

hcg50a Next step, the Matrix (54 comments)

This sounds like the first step in human batteries, ala The Matrix.

more than 4 years ago
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The Space Garbage Scow, ala Cringely

hcg50a Conservation of energy/momentum (221 comments)

...means the net will lose speed every time it captures some junk. The author needs to take high school physics again.

Tacking on a sailboat works because the wind is blowing on the sail, adding energy to the whole craft.

Scooping stuff in a net is just an inelastic collision. The momentum gain of the junk will equal the momentum loss of the net. The net's orbit will decay as it captures more and more junk.

more than 4 years ago
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The Most Useless Key On My Keyboard Is...

hcg50a Re:Insert Anyone? (939 comments)

The Insert key is essential for restoring insert mode after you have accidentally hit Insert by mistake.

It has no other use.

more than 4 years ago
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Which Breakthrough Is Most Likely?

hcg50a Re:Aliens or AI FTW. (903 comments)

Human level AI

I think this is unlikely without some sort of "theory of consciousness". Then again maybe we're lucky and we can build it without understanding it.

The steam engine was built without understanding thermodynamics. In fact, thermodynamics arose out of a desire to understand the steam engine.

more than 4 years ago
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Michael Jackson's death affects me ...

hcg50a Re:MTV Tribute (658 comments)

Weird Al was great with "Eat it!"

more than 5 years ago
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Successful Launch of ESA's Herschel and Planck

hcg50a Re:L2? (121 comments)

Actually, it's the Earth and the Sun. It's on the Earth-Sun line, behind the earth (from the sun's point of view), and orbits the sun once a year. They put it here because it's easier to shield the satellite from both the Sun and Earth.

The L2 point for the Earth-Moon system is on the Earth-Moon line, behind the moon, and orbits the earth once evry 29.5 days.

more than 5 years ago
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Emailaholics Reveal Their Habits

hcg50a Another cluster (95 comments)

I recognize those two clusters, but there is a another big cluster in my own social network: People who only check their e-mail once a day (or less).

I myself cannot comprehend such behavior.

more than 5 years ago
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US Adults Fail Basic Science Literacy

hcg50a Re:47% (1038 comments)

This mistake proves the premise of the article.

more than 5 years ago
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Another Way the LHC Could Self-Destruct

hcg50a Worser (367 comments)

Could it be worse than melting a 40-ton magnet, which actually happened?

more than 5 years ago

Submissions

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NASA successfully tests DTN

hcg50a hcg50a writes  |  more than 5 years ago

hcg50a (690062) writes "NASA has successfully tested the first deep space communications network modeled on the Internet. Working as part of a NASA-wide team, engineers from NASA's Jet Propulsion Laboratory in Pasadena, Calif., used software called Disruption-Tolerant Networking, or DTN, to transmit dozens of space images to and from a NASA science spacecraft located about 20 million miles from Earth. Here's an article from July, before the test began."

Journals

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Transporting A-Bombs

hcg50a hcg50a writes  |  more than 8 years ago

I have a question about Star Trek.

In both the tee vee shows and the movies, they often transport people and objects to and from spacecraft with transporters.

When they are fighting Klingons, how come they never transport an a-bomb into the bridge (or some other vulnerable point) of the opponent?

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Hard-wired for geometry

hcg50a hcg50a writes  |  more than 8 years ago Hard-wired for geometry 12:44 Friday 20 January 2006 Pending

I submitted this article. Let's see how long it takes for someone to deal with it, and reject or accept it.

Update: It was published at 8:28am PST on 21 January, 2006.

I still have an outstanding article (a poll) pending:

Best funeral for a head of state 11:18 Monday 04 April 2005 Pending

This was relevant only for around a week after Pope John Paul II died, and is utterly irrelevant now!

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Signatures

hcg50a hcg50a writes  |  more than 8 years ago Ash nazg durbatuluk, ash nazg gimbatul,
Ash nazg thrakatuluk, agh burzum-ishi krimpatul.

HCG 50a = 2MASX J11170638+5455016
11h17m06.4s +54d55m02s

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hcg50a hcg50a writes  |  more than 8 years ago

It is now official. Netcraft confirms: *BSD is dying

One more crippling bombshell hit the already beleaguered *BSD community when IDC confirmed that *BSD market share has dropped yet again, now down to less than a fraction of 1 percent of all servers. Coming on the heels of a recent Netcraft survey which plainly states that *BSD has lost more market share, this news serves to reinforce what we've known all along. *BSD is collapsing in complete disarray, as fittingly exemplified by failing dead last in the recent Sys Admin comprehensive networking test.

You don't need to be the Amazing Kreskin to predict *BSD's future. The hand writing is on the wall: *BSD faces a bleak future. In fact there won't be any future at all for *BSD because *BSD is dying. Things are looking very bad for *BSD. As many of us are already aware, *BSD continues to lose market share. Red ink flows like a river of blood.

FreeBSD is the most endangered of them all, having lost 93% of its core developers. The sudden and unpleasant departures of long time FreeBSD developers Jordan Hubbard and Mike Smith only serve to underscore the point more clearly. There can no longer be any doubt: FreeBSD is dying.

Let's keep to the facts and look at the numbers.

OpenBSD leader Theo states that there are 7000 users of OpenBSD. How many users of NetBSD are there? Let's see. The number of OpenBSD versus NetBSD posts on Usenet is roughly in ratio of 5 to 1. Therefore there are about 7000/5 = 1400 NetBSD users. BSD/OS posts on Usenet are about half of the volume of NetBSD posts. Therefore there are about 700 users of BSD/OS. A recent article put FreeBSD at about 80 percent of the *BSD market. Therefore there are (7000+1400+700)*4 = 36400 FreeBSD users. This is consistent with the number of FreeBSD Usenet posts.

Due to the troubles of Walnut Creek, abysmal sales and so on, FreeBSD went out of business and was taken over by BSDI who sell another troubled OS. Now BSDI is also dead, its corpse turned over to yet another charnel house.

All major surveys show that *BSD has steadily declined in market share. *BSD is very sick and its long term survival prospects are very dim. If *BSD is to survive at all it will be among OS dilettante dabblers. *BSD continues to decay. Nothing short of a miracle could save it at this point in time. For all practical purposes, *BSD is dead.

Fact: NetBSD is dying

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Jazz giant Artie Shaw dead at 94

hcg50a hcg50a writes  |  more than 9 years ago

I'm not a big fan of big band swing (although I like that music), and I'm not a big fan of the clarinet.

The only reason I even know about Artie Shaw is that, as a child in the late 50s, I had a set of 78rpm records (as distinguished from "LP 33s") which was a musical adaptation of the Pied Piper of Hamelin. I used to play it quite a bit on a record player.

The story was kind of interesting, but I really liked the music. It was Artie Shaw playing clarinet.

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Being silly

hcg50a hcg50a writes  |  more than 9 years ago Check this out.

It's a mildly amusing thread I participated in last Monday. I did it anonymously. Mine is the second comment. I actually got modded up.

I generally think that people who write "Mod parent up" or "mod parent down" are boofheads, although sometimes those comments have been right on.

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Finding a relative

hcg50a hcg50a writes  |  more than 9 years ago I just found my nephew here. He has a prestigious low Slashdot userid, from which I gather that he registered about 4 years ago. I wonder how many other acquaintances of mine are here?

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Captain Kangaroo dead at 76

hcg50a hcg50a writes  |  more than 10 years ago

I grew up with him. I've always wondered why I never see re-runs of his show -- I'm sure that I remember it being much, much better than it actually was.

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Nerds and geeks

hcg50a hcg50a writes  |  more than 10 years ago Miss Marvel wrote in her journal:

...nerds and geeks. I may live to regret this, but I'm willing to try anything at least once.

I have to say that I am just really disappointed that Miss Marvel seems to be calling me, and a lot of other people, including one of my friends, a nerd and a geek.

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What is CGCG 378-15?

hcg50a hcg50a writes  |  more than 10 years ago CGCG 378-15 is a galaxy in the Catalogue of Galaxies and of Clusters of Galaxies. It is located at 22h 40m 30s +03d 21m 30.9s (J2000). This galaxy is rather unremarkable, except that it gravitationally lenses a distant quasar, forming a 4-lobed image known as Einstein's Cross .

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What is HCG50a?

hcg50a hcg50a writes  |  more than 11 years ago HCG50a is the brightest component of Hickson Compact Group 50 (HCG50), a small group of 5 galaxies in the constellation Ursa Major. They are extremely faint, and are visible visually only in large telescopes, say > 25" in aperture.

There are 100 groups in the Hickson Compact Group catalog, compiled by Paul Hickson to investigate interacting galaxies.

More information on this interesting catalog can be found here .

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