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!

Curiosity Rover Fires First Laser Beam At Martian Rock

samzenpus posted about 2 years ago | from the curiosity-shot-first dept.

Mars 167

A martian rock named "Coronation" was shot with 30 pulses over a 10-second period by Curiosity's laser today in order to determine what elements it was made of. “We got a great spectrum of Coronation — lots of signal,” Roger Wiens of Los Alamos National Laboratory, leader of the ChemCam scientific team, said in a press release today. “Our team is both thrilled and working hard, looking at the results. After eight years building the instrument, it’s payoff time!” Another rock known as N165 was selected for later testing.

cancel ×

167 comments

Sorry! There are no comments related to the filter you selected.

Bagger 288 (5, Funny)

Anonymous Coward | about 2 years ago | (#41049537)

How long until we send a Bagger 288 to mars? That'll show those rocks what for.

Re:Bagger 288 (5, Informative)

mirix (1649853) | about 2 years ago | (#41049907)

95% of the readers just wooshed.

Bagger is series of gigantic bucket-wheel excavators, for the unitiated. Some (the biggest, at least) were made by East German TAKRAF. I think others were made in west.

They made some pretty bizarre machines, like RB293 [wikipedia.org] (of bagger series) and F60 [wikipedia.org]

Gotta move that coal...

Re:Bagger 288 (0)

Anonymous Coward | about 2 years ago | (#41050191)

Ah, the benefits of karma.
Bet you wished you signed in now, eh?

Re:Bagger 288 (2)

Brad1138 (590148) | about 2 years ago | (#41050607)

95% of the readers just wooshed.

You underestimate how many of us Americans watch the History channel. Modern Marvels [youtube.com]

Re:Bagger 288 (-1, Offtopic)

zhouren1989 (2711223) | about 2 years ago | (#41050787)

monster beat by dre [pcogo.com] monster beat by dr dre [monsterbeatsdredr.com] dre beat studios [beatsdrdrebysale.com] dr dre beats studios [cheapbeatsdrdreby.com] beat by dre monster [pcogo.com] beats by dr dre studios [monsterbeatsdredr.com] monster beat by dre [beatsdrdrebysale.com] monster beat by dre [cheapbeatsdrdreby.com] monster beat by dr dre [pcogo.com] beat by dre monster [monsterbeatsdredr.com] dr dre monster beat [beatsdrdrebysale.com] monster beat dr dre [cheapbeatsdrdreby.com]

I want to buy that rock (1, Redundant)

fustakrakich (1673220) | about 2 years ago | (#41049545)

Does it shoot back?

Re:I want to buy that rock (-1)

Anonymous Coward | about 2 years ago | (#41049763)

Does it shoot back?

The rock holds its laser sideways because it's a nigger rock and thinks shit marksmanship is so gangsta, yo.

Re:I want to buy that rock (1, Funny)

ackthpt (218170) | about 2 years ago | (#41050005)

Does it shoot back?

No. But what you didn't read about the Curiosity Rover landing was how the got the shark with the laser there.

Re:I want to buy that rock (1)

Anonymous Coward | about 2 years ago | (#41050095)

No. But what you didn't read about the Curiosity Rover landing was how the got the shark with the laser there.

It was a Space Shark. Duh.

$300 (-1)

Anonymous Coward | about 2 years ago | (#41050467)

I have a $300 budget. What would be the best hand gun to buy for that price, not including ammo, to shoot myself in the head with?

I don't need an awesome gun.. only going to use it once after all.

Re:$300 (0)

Anonymous Coward | about 2 years ago | (#41051033)

Hi Point C9 9mm. You can get it for HALF of that $300. Leave the rest to your favorite charity.

Re:I want to buy that rock (4, Funny)

deek (22697) | about 2 years ago | (#41050303)

I'm still waiting for the earth shattering kaboom. There was supposed to be an earth shattering kaboom. Especially if it tests a rock with illudium Q-36 in it.

Re:I want to buy that rock (2)

Brad1138 (590148) | about 2 years ago | (#41050627)

LOL, that is lost on too many these day.

Re:I want to buy that rock (0)

Anonymous Coward | about 2 years ago | (#41050755)

Is it wrong I read that with the Martin voice?

Re:I want to buy that rock (0)

Anonymous Coward | about 2 years ago | (#41050983)

Is it wrong I read that with the Martin voice?

Is there any other way to read it?

This means war! (5, Funny)

ColdWetDog (752185) | about 2 years ago | (#41049555)

You folks realize that this is very likely to result in a Council of War from the Elders. It's bad enough to litter the landscape with Earthling detritus, but offensive weaponry on innocent and passive Martian rocks cannot be tolerated!

Re:This means war! (5, Funny)

Anonymous Coward | about 2 years ago | (#41049695)

I wouldn't worry - once George Lucas re-edits the footage the rock will have fired first...

Re:This means war! (0)

Cazekiel (1417893) | about 2 years ago | (#41051101)

You almost got me PMSL... good show, Sir or Madam...

Re:This means war! (1)

Tablizer (95088) | about 2 years ago | (#41051395)

I wouldn't worry - once George Lucas re-edits the footage the rock will have fired first...

Horta's do

Re:This means war! (1)

Anonymous Coward | about 2 years ago | (#41049701)

K'Breel, Speaker for the Council of Elders will certainly have issues with such war mongering as...

It’s so rich, we can expect great science [exploitation] from investigating what might be thousands of targets with ChemCam in the next two years.

His response will be quick and just I'm sure.

Re:This means war! (1)

theshowmecanuck (703852) | about 2 years ago | (#41051509)

Feed him a hippy. He'll forget all about it.

Re:This means war! (4, Funny)

outsider007 (115534) | about 2 years ago | (#41049703)

We had a tip there were WMD's inside it.

Re:This means war! (1)

cvtan (752695) | about 2 years ago | (#41049867)

Especially rocks that have names like N165.

Re:This means war! (-1, Troll)

Kreigaffe (765218) | about 2 years ago | (#41050197)

dear god I hadn't noticed that until I just read it here, on /.

but.. they named that rock nigs. nasa is shooting nigs on mars.

what the fuck nasa?

Re:This means war! (4, Funny)

Dunbal (464142) | about 2 years ago | (#41050295)

Too bad the heat shield landed accidentally on the Elders' primary residence.

Pffft... Star Wars... (0)

Anonymous Coward | about 2 years ago | (#41050395)

Sensible people realize that we must act now to SAVE THE HORTA!!!

Rock (0)

Anonymous Coward | about 2 years ago | (#41049585)

I hereby dub the rock "Greedo" to open up the possibility for future expansions.

Plant a fucking flag. (-1)

Anonymous Coward | about 2 years ago | (#41049589)

Americans, first to shoot their load on Mars. Much like every other orbiting 'bo-day'.

Re:Plant a fucking flag. (1)

Tablizer (95088) | about 2 years ago | (#41051503)

And smoked a cigaret when done

One problem... (5, Funny)

destinyland (578448) | about 2 years ago | (#41049597)

What if the martians ARE rocks?!

Re:One problem... (5, Funny)

grouchomarxist (127479) | about 2 years ago | (#41049609)

One less to worry about...

Re:One problem... (5, Funny)

Sulphur (1548251) | about 2 years ago | (#41049723)

What if the martians ARE rocks?!

Its last words were "Don't laze me bro."

Re:One problem... (4, Informative)

Trepidity (597) | about 2 years ago | (#41049745)

Close! [twitter.com]

Now it's taken to social media to turn public opinion against lasing of rocks.

Re:One problem... (4, Funny)

BobNET (119675) | about 2 years ago | (#41050075)

Dammit Jim, I'm a doctor... not a bricklayer!

Re:One problem... (4, Interesting)

camperslo (704715) | about 2 years ago | (#41050161)

What if the martians ARE rocks?!

Maybe they feed on energy and like a fresh blast.

Meanwhile, pet rocks on Earth are nervous. Hopefully this won't stir religious conflicts on Earth involving those who believe the spirits of their ancestors live in rocks.

Curiosity will also be giving us data on energetic protons from solar events. Since Mars has essentially no magnetic field, much lower energy particles can reach ground level than on Earth. Measurements were made on the way there. From the background levels, it looks like about half makes it through the Martian atmosphere.
Studying solar weather on Mars may provide some insights as to what to expect when our magnetic field at home weakens. It's dropped 10% or so in the last 150 years which is a relatively fast rate of change.

http://www.stce.be/news/154/welcome.html [www.stce.be]

http://www.scientificamerican.com/article.cfm?id=is-it-true-that-the-stren [scientificamerican.com]

Re:One problem... (1)

Grayhand (2610049) | about 2 years ago | (#41050245)

What if the martians ARE rocks?!

That explains the rock saying ouch, flipping the rover off and waddling away rubbing it's ass.

Re:One problem... (1)

jamstar7 (694492) | about 2 years ago | (#41050641)

We take them to Boulder, Colorado for a rock concert?

Old mystery explained. (5, Funny)

Bill Currie (487) | about 2 years ago | (#41049607)

So this is how Curiosity kills cats? I guess the next mission needs to be called Satisfaction.

Re:Old mystery explained. (4, Funny)

Nidi62 (1525137) | about 2 years ago | (#41049785)

I guess the next mission needs to be called Satisfaction.

Except then we'd never get that mission...

Re:Old mystery explained. (4, Funny)

bitingduck (810730) | about 2 years ago | (#41050695)

I guess the next mission needs to be called Satisfaction.

Except then we'd never get that mission...

but we'll try, and we'll try...

Re:Old mystery explained. (2, Funny)

Tablizer (95088) | about 2 years ago | (#41051407)

It would start a pussy riot

Re:Old mystery explained. (1)

Dunbal (464142) | about 2 years ago | (#41050313)

Or Schrodinger, because it was curiosity that caused him to open the box, but we all know it was the poison gas that really killed the cat. Or didn't.

Re:Old mystery explained. (0)

Anonymous Coward | about 2 years ago | (#41050437)

Schrödinger?

N165 == Coronation (0)

Anonymous Coward | about 2 years ago | (#41049623)

Summary said otherwise. N165 was the provisional name.

http://mars.jpl.nasa.gov/msl/multimedia/images/?ImageID=4492

1894, never forget (-1)

Anonymous Coward | about 2 years ago | (#41049631)

"Forthwith flashes of actual flame, a bright glare leaping from one to another, sprang from the scattered group of men. It was as if some invisible jet impinged upon them and flashed into white flame. It was as if each man were suddenly and momentarily turned to fire."

More ad laden slashdot bullshit (5, Informative)

Anonymous Coward | about 2 years ago | (#41049645)

Anybody want to tell me why they don't link to the source [nasa.gov]

And anybody want to tell me why sppammers can post more frequently than I can?

Re:More ad laden slashdot bullshit (0)

fisted (2295862) | about 2 years ago | (#41049681)

because you're AC, hence you can't do shit.

Also, the other day you were gonna "leave slashdot for good". how come you're still here? leave already!

Re:More ad laden slashdot bullshit (-1)

Anonymous Coward | about 2 years ago | (#41049801)

because you're AC, hence you can't do shit.

Also, the other day you were gonna "leave slashdot for good". how come you're still here? leave already!

because you're AC, hence you can't do shit.

Also, the other day you were gonna "leave slashdot for good". how come you're still here? leave already!

dfgdfg dfgdfgdfg dfgdfg dfgferter dfgdfg

Re:More ad laden slashdot bullshit (1)

Anonymous Coward | about 2 years ago | (#41050269)

...hence you can't do shit.

Proxy, baby

...how come you're still here? leave already!

Judging from your UID# it would appear that yours is one of the many spam/shill accounts that have flooded/invaded the site in recent times. It would do us all good if you would follow your own advice.

Re:More ad laden slashdot bullshit (4, Funny)

drwho (4190) | about 2 years ago | (#41050359)

damned kids, get off my lawn.

Pew! Pew! Pew! (1)

stevegee58 (1179505) | about 2 years ago | (#41049653)

I missed the shark but at least I got in the first Pew! Pew! Pew!

Item drops (5, Funny)

Anonymous Coward | about 2 years ago | (#41049655)

In my experience of shooting lasers at rocks, there's usually a chance of finding a health pack or some coins.

Quite an expensive rock collection (2)

PhrostyMcByte (589271) | about 2 years ago | (#41049657)

Indexing rocks on a different planet from 50-400 million km away. NASA has the greatest rock collection ever.

Re:Quite an expensive rock collection (0)

aNonnyMouseCowered (2693969) | about 2 years ago | (#41049731)

"Indexing rocks on a different planet from 50-400 million km away. NASA has the greatest rock collection ever."

Well if NASA has the greatest rock collection on another planet, I have the greatest art collection right here on Earth. But because of my extremely generous nature, I'm letting all you plebeians have a peek at it in Paris, London and New York.

Re:Quite an expensive rock collection (0)

Anonymous Coward | about 2 years ago | (#41049955)

...and I have, at the Met, the Tate, and the Louvre.

Oh, I'm sorry, were you referring to imaginary attributes? Sorry to intrude.

But think about leaving mom's basement some decade. Those really are fine museums.

Re:Quite an expensive rock collection (1)

Sulphur (1548251) | about 2 years ago | (#41050853)

...and I have, at the Met, the Tate, and the Louvre.

Oh, I'm sorry, were you referring to imaginary attributes? Sorry to intrude.

But think about leaving mom's basement some decade. Those really are fine museums.

If you are thinking of stealing something, then may I suggest a guard. Some of them are incomparable.

Re:Quite an expensive rock collection (1)

slew (2918) | about 2 years ago | (#41050029)

Simply giving a name to something doesn't make it part of your collection...
Unless perhaps you are Alexander Selkirk...

I am monarch of all I survey,
My right there is none to dispute;
From the centre all round to the mare,
But all are rocks so it is just moot.

-Curiosity, with apologies to the *other* William... (Cowper)

NASA link (5, Informative)

caseih (160668) | about 2 years ago | (#41049665)

Here's a more official news link: http://www.nasa.gov/mission_pages/msl/news/msl20120819b.html [nasa.gov] . I hope they will announce soon the actual results of the spectroscopy somewhere.

Also a reminder that NASA's official page for this mission is:
http://www.nasa.gov/msl/ [nasa.gov] . This is probably a better source for MSL news than wired.

Would it hurt slashdot editors to post the official NASA links as well as the submitted, third-party news links? We pay them to be editors after all.

Re:NASA link (-1)

Anonymous Coward | about 2 years ago | (#41049721)

We pay them to be editors after all.

Are you a subscriber? If not, then you're not paying them for anything. But remember, Slashdot is an advertising site, so they prefer to link to sites with that concept in mind. Linking to the official page would draw people away from the advertising site.

Re:NASA link (0)

Anonymous Coward | about 2 years ago | (#41050221)

Subscribers seemingly pay the editors for nothing too.
What were you saying?

Re:NASA link (0)

Anonymous Coward | about 2 years ago | (#41050263)

Are you a subscriber? If not, then you're not paying them for anything.

So clicking on an ad generates no income for Slashdot? Interesting concept if true.

Re:NASA link (2, Insightful)

Dunbal (464142) | about 2 years ago | (#41050329)

I pay them. You don't pay them. Especially not with ad-block.

Re:NASA link (4, Funny)

drwho (4190) | about 2 years ago | (#41050381)

Yea, I have given my two cents so often that, perhaps, I have contributed $5.00. So, that gives me rights!

Oh dear. (1)

malacandrian (2145016) | about 2 years ago | (#41049673)

If I know my Captain Scarlet (and I do), this is the beginning of the end.

Soon, it will start trundling, not locomoting. (5, Funny)

Impy the Impiuos Imp (442658) | about 2 years ago | (#41049697)

> A martian rock named "Coronation" was shot with 30 pulses

ZAPPED, God damn it!

Robots on Mars with freakin' laser beams and claws zap things!

This project needs a midwesterner. (4, Funny)

daemonenwind (178848) | about 2 years ago | (#41049739)

Out here we know...don't name it if you're gonna shoot it.

Re:This project needs a midwesterner. (1)

jamstar7 (694492) | about 2 years ago | (#41050687)

Oh, be quiet and pass the Bambi-Burger(tm)

You know, (0)

Anonymous Coward | about 2 years ago | (#41049747)

Can't stop the signal, Mal.

Re:You know, (0)

Anonymous Coward | about 2 years ago | (#41049779)

Marry me, space cowboy.

The rock formerly known as N165 (0)

Anonymous Coward | about 2 years ago | (#41049751)

will be opening for Prince on his next world tour.. if he ever loses his religion.

And thus began what historians would call (0, Troll)

Vinegar Joe (998110) | about 2 years ago | (#41049797)

George Bush's First Interplanetary War.

WAR!!! (0)

Anonymous Coward | about 2 years ago | (#41049811)

This means WAR!!!

Atleast.. (0)

Anonymous Coward | about 2 years ago | (#41049817)

It wasn't a shark...

Fail (0)

Anonymous Coward | about 2 years ago | (#41049819)

No sharks?

I, for one... (4, Funny)

Zigurd (3528) | about 2 years ago | (#41049825)

We've put on Mars a large machine that blasts the landscape with a heat ray. A heat ray. And we have set the example that such a machine can be robotic, and impervious to microbes. That's sure to end well.

Laser or Heat-Ray (5, Interesting)

thoughtfulbloke (1091595) | about 2 years ago | (#41049839)

shot with 30 pulses over a 10-second period by Curiosity's laser today in order to determine what elements it was made of

or as H.G. Wells put it,

...the Martians rattle for a time and then become still. The giant saved Woking station and its cluster of houses until the last; then in a moment the Heat-Ray was brought to bear, and the town became a heap of fiery ruins. Then the Thing shut off the Heat-Ray, and turning its back...

Re:Laser or Heat-Ray (3, Funny)

Col. Bloodnok (825749) | about 2 years ago | (#41050155)

My word! The only good thing about Woking is the fast service into London. The fiends!

War of the Worlds Gutenberg ebook (1)

mattr (78516) | about 2 years ago | (#41051141)

http://www.gutenberg.org/files/36/36-h/36-h.htm [gutenberg.org]

Just realized I have seen the film adaptations but had never actually read the original work. Just skimming it, it looks good! It starts out with a guy and a telescope seeing some outgassing from the rim of Mars.. and then discovering an ash-covered cylinder in a crater... that starts unscrewing its end!

Re:War of the Worlds Gutenberg ebook (1)

mattr (78516) | about 2 years ago | (#41051153)

p.s. that was the HTML version. The link to the downloadable ebooks is:
http://www.gutenberg.org/ebooks/36 [gutenberg.org]

NASA Fundraiser Alert (5, Interesting)

meglon (1001833) | about 2 years ago | (#41049885)

NASA should offer the chance to name each rock it blasts for a donation. They could probably get free advertising from science mags, oddball news organizations doing stories, and divorce lawyers.

Even better (3, Funny)

subreality (157447) | about 2 years ago | (#41050679)

NASA should offer the chance to laser-engrave your name on a Martian rock. For megabucks, they could write your name in giant cursive with the rover's wheel tracks; all applications must include a program written in LOGO.

Re:NASA Fundraiser Alert (1)

Tablizer (95088) | about 2 years ago | (#41051499)

Then you'd get secret anagrams for crazy causes. For example, a coded phrase that translates to "Obama's dog licked the pussy of a communist Kenyan Muslim cat" and shit like that.

Where is the earth-shattering boom? (4, Funny)

EricTheGreen (223110) | about 2 years ago | (#41049945)

There was supposed to be an EARTH-SHATTERING BOOM!!!

Re:Where is the earth-shattering boom? (1)

mjwx (966435) | about 2 years ago | (#41050247)

There was supposed to be an EARTH-SHATTERING BOOM!!!

It's meant to be an "earth-shattering ka-boom".

Your failure to make this small, yet important distinction makes me very angry.

Re:Where is the earth-shattering boom? (1)

EricTheGreen (223110) | about 2 years ago | (#41050509)

And thus does iPhone auto correct precipitate a tragic, needless intergalactic conflict....

(Duly noted and thank you for the correction. Too bad I do not have a Illudium Q-36 explosive space modulator with which to alter the original post...)

NASA never met a problem... (4, Interesting)

gman003 (1693318) | about 2 years ago | (#41050031)

it cannot solve with the proper use of rockets, lasers and in one notable case, duct tape.

Someone start a White House petition to rename NASA to "Federal Department of Rockets and Lasers". Because who in their right mind (or several of the wrong ones) would cut funding to the Department of Rockets and Lasers?

Re:NASA never met a problem... (1)

queazocotal (915608) | about 2 years ago | (#41050845)

LASERs.
It's an acronym.

Re:NASA never met a problem... (4, Informative)

gman003 (1693318) | about 2 years ago | (#41050927)

It originated as an acronym; it is now fully acceptable to use as a proper or even regular noun. Indeed, this seems to be the preferred usage, as shown by the Federal Department of Rockets and Laser's own usage [google.com] .

And I tend to defer to the Federal Department of Rockets and Lasers in matters regarding all things laser and/or rocket.

Why name the rock right before you vaporize it? (1)

zindorsky (710179) | about 2 years ago | (#41050189)

Maybe they shouldn't have named it first? I bet it's harder to vaporize a rock after it like has an identity and stuff.

Earth has Invaded Mars with a laser-wielding robot (4, Funny)

w0mprat (1317953) | about 2 years ago | (#41050271)

You know your technological civilization has reached a certain level when you send a robot to another planet to shoot shit with fricken lasers.

Early days yet, can only sizzle a bit of rock. Today, some scientific samples, tomorrow the galaxy!

In related news ... (5, Funny)

PPH (736903) | about 2 years ago | (#41050343)

... Martians seek asylum with Ecuador.

Re:In related news ... (0)

Anonymous Coward | about 2 years ago | (#41050979)

Haven't you heard? US does not recognize political asylum.

http://www.youtube.com/watch?v=sWS-FoXbjVI [youtube.com]

Let's mount lasers on other stuff (0)

Anonymous Coward | about 2 years ago | (#41050419)

Sure, we can mount a laser on a rover on Mars, but we can't mount one ON A FREAKIN' SHARK ON EARTH?!?! Unbelieveable...

If we had given the one hundred billion dollars to Dr. Evil instead of NASA, then this never would have been a problem...

Reporter from Mars (0)

Anonymous Coward | about 2 years ago | (#41050465)

A reporter from Mars said: "I for one welcome our nuclear powered laser firing alien robot overlord".

Ha ha ha ha! (1)

multicoregeneral (2618207) | about 2 years ago | (#41050519)

The death worked.... if only there was something other than rocks to shoot at.

Sure! (0)

Anonymous Coward | about 2 years ago | (#41051127)

Go off to alien worlds, start shooting up the place with lasers. Pretty soon, a little guy that looks like he has a roman soldiers hat on and a 1950's pair of athletic sneakers on comes up to your ship and starts muttering to himself "Where's the kaboom! There was supposed to be an earth shattering kaboom!" Only his gun is bigger than yours, his is an Illudium Q-36 Explosive Space Modulator! Hey NASA: What would your mother say? Is your mother proud of you?

But can it sing? (0)

Cazekiel (1417893) | about 2 years ago | (#41051133)

Now I'm picturing Curiosity roaming around, singing, "On planet Mars, I feel safest of all, no more humans around, and I get to shoot rocks, on Mars..."

Title incomplete. (0)

Anonymous Coward | about 2 years ago | (#41051323)

The title is incomplete and should read, "Curiosity Rover Fires First Laser Beam At Martian Rock. Sparks interplanetary war. Some Martians Welcome Their New Earthling Overlords."

Money well spent! (-1)

Anonymous Coward | about 2 years ago | (#41051381)

Sure we have trillions in national debt, millions of kids who dont get to eat breakfast in the morning, millions who cant get jobs to support themselves, shitty housing market, millions who cant go to the dr or dentist, a pitiful public school system, billions wasted on a "war" with some brown people for no reason and another 100 things we have serious problems with.

But you know what? Fuck it, because we just lasered a rock on mars! I mean come on guys, this is even more important than creating the seedless watermelon. Just think of the applications! This might really be valuable information in 96 years. So I say to hell with solving problems down here, we need more robots in space lasering more rocks! Thats where all the real money, time, energy and brainpower needs to be spent.

Load More Comments
Slashdot Login

Need an Account?

Forgot your password?
or Connect with...

Don't worry, we never post anything without your permission.

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>