Archive for category Space Science

LIFE “OUT THERE” LOOKS LIKELY

Posted by on Wednesday, 9 November, 2011

 

 

STAR GOO

Remember how Doctor Spock and Captain Kirk, in the Enterprise, were always running into alien life forms? I don’t believe they ever explained, exactly, how the plug uglies they encountered happened to be up there (or maybe I missed that episode). Did they evolve from monkeys just as we did? Very homely ones? Were their planets colonized by refugees from Earth who, under the constant bombardment of gamma rays on Alpha Four, began to look like they had a case of bad stage makup?

Maybe there’s another explanation for how alien civilizations get their start. Two researchers at the University of Hong Kong say the “building blocks of life” are everywhere, waiting for the deft touch of nature (or, if you prefer,the finger of God) to turn them into living cells.

They (the researchers) say stars make a petroleum like substance which is full of complex organic molecules. Aromatic rings, even. This  ”Star Goo”, eventually, spreads throughout space.

The last time we watched life get started – um that would be the first time too – it happened in the wink of an eye. A cosmic eye, anyway. Since we know there are lots of planets and lots of water out there and, now,  thanks to Kwok and Yong Zhang , we know that every star in every galaxy contains  an E Z STARTER KIT FOR LIFE , it’s a good bet that there are plenty of living creatures to be found.

BUT NOT A SINGLE DROP TO DRINK

Doesn’t that just suck?  Living creatures inhabiting biological niches throughout this busy universe, and, yet, we continue our lonely existence with no practical way to know who or what is out there? Life everywhere but “not a single drop to drink”?

As it were.

For a while, the SETI Project seemed like it might come up with something but it’s beginning to dawn on some that we’re probably barking up the wrong antenna. Our own civilization sends out very few stray radio waves anymore.  More underground cables. Less antennas. If it’s like that, upstairs, this is bad news for SETI.

Sad, I suppose, although, maybe it’s good for us to figure things out on our own. And, maybe, we’re better off without yet another higher power. Heaven KNOWS we’re having enough problems with the lower ones.

Get this though. There may BE a way to sniff out another civilization. Wouldn’t aliens, independently, come up with the idea of artificial light? Just like we did? It makes sense.   Abraham Loeb and Edwin Turner think so. Loeb (Harvard) and Turner (Princeton) feel that a well lit alien city could be detected with a sensitive telescope. It would have to be  more sensitive than anything we have now but, with the right filters, a new generation of telescopes might do the trick.

At least, that’s the theory.

————-

Image by Mister SASB


ARDVARK DIES

Posted by on Thursday, 22 September, 2011

GOODBYE, MY FRIEND

Maybe you hate Google.

Some do.

But you gotta admit, the big G is creative. Ideas fly out of Google  faster than films out of Bollywood – Picasa, YouTube, Maps, Panoramio, Android, Earth, Bookmarks.. Always something new.

How long can creativity like that last?

Well, recently, Google announced that it is trying to be  more focused. The  workers were having too much fun. Too much fun is never good. It annoys the investors. Hence, going forward, there’ll be no more throwing piglets at walls to see what sticks. According to Larry Page, there will be “more wood, less arrows”. (Larry’s the CEO and gets paid to maintain order). To get the wood properly aligned with the arrows, Google flipped through its multitudinous projects  to see what could go. Some projects were closed down, some remained. And some got combined. Just  in case the “we’re serious dudes now” message wasn’t clear, Google Labs, itself, got the ax.

Is creativity finally wrung out of Google’s guts? The time  spent on “go crazy” projects  (which used to be 20% of the work week) has been reduced to .. Well.. 20%. No change at all. So I guess creativity isn’t eggzactly a thing of the past. Just reducing the arrows is all. This, supposedly, keeps “The Street” happy.

One  project that was killed  is aardvark. Which you probably never heard of. It works like this.

Say you finally dumped the Subaru.

“Google,” you say, ” I finally sold my 1995 Subaru. What do I do now?”

Good question. I’m  on this.

I’m thinking “Subaru. This person probably shops at Whole Foods, wears natural fabrics, and wishes the Tea Party would drop dead!  He.she  should probably be looking at a Prius. Or a Mini.”

Well, dear reader,  aren’t I smart! In fact, I’m smarter then Google’s famous search engine which would choke on that question. And WHY am I so smart? Because I got DNA in me. I’m a human. Maybe Google Search will be that smart some day.

Don’t be a breath holder.

Well, a while ago,  Google Labs (rest in peace) realizing the problems of  “natural language” ,  decided to  waste an arrow. Maybe Google could come up with a way to get humans in the loop for certain questions.

 

AARDVARK

The idea with aardvark was to “social up”. Users get to check off particular areas of knowledge. They become volunteer experts. They become the blood and bones of the animal.

As it were.

Mister ScienceAintSoBad (in his human guise) was such a user. He claimed to know about science.

Questions began to show up. Most were dopey.

As someone who works almost every day, is to stay in shape with little time? 

Sounds like a fortune cookie, doesn’t it? He was probably looking for an efficient way to exercise. No WONDER it came to me. Probably because I checked off physics.

Another on-target question:  What is the best way to tell my girlfriend I love her in every-way possible, and I don’t think she is annoying or anything she says bad about herself. 

Whatever! I don’t consider myself an expert on this subject. If I were qualified to give advice on romance, would I wear these thick glasses and dress funny? Anyway, his syntax is off. If English is his second language, I’m impressed. If it’s his first one, he needs a new dictionary.

I’m looking for a excel spreadsheet app for ipad 2 that can use imported email documents that are excel spreadsheets already from a computer.

Okay, bubs. That’s legit, I guess. But kinda lazy. Ever hear of the App Store?

And here’s a guy who really doesn’t “get” natural selection: While some species ascend high in the atmosphere it seems as if birds do not fly too high for their safety. Do they, and if not how to they know what are safe altitudes for them? Why does say a magpie not have a go at flying up to geese migration heights?

That same day I received: How can you use only two fours to equal 4? Well, I passed on that one. Too deep for me. Maybe, the submitter isn’t originally from this solar system.

I also asked aardvark some questions of my own. I wanted to know if the minuscule vibrating strings that string theory’s based on can run out of gas. In other words, are they subject to the second law of thermodynamics?

In string theory, all “particles” are comprised of vibrating strings. The associated energy and mode of vibration of the string determines which specific particle the string will be. My question: does the energy of the vibrating strings decay over time? Do the laws of thermodynamics (entropy, in particular) apply at this level?

I got this response:

Well, I’m no expert, so feel free to restate the question when the answer is unsatisfactory. I believe a string will change its energy and mode only when it comes into contact with another string. This would be the same for conventional objects, except that the objects around us come into contact with other object all of the time, hence the decay in vibration energy.

He’s “no expert” but he BELIEVES that a string.. Always good to have someone share his opinions, I guess. I did wonder why he didn’t let the question pass  to someone who KNEW the answer. But I was polite.

I thanked him.

I believe you are right though that’s what I hope to confirm. You refer to “conventional” objects. I assume you meant things that are, by convention, particles in the Standard Model (quarks et al).

Goes out on a limb:

No, they don’t apply at that level.

As I suspected but I was hoping for a bit more explanation. I thank him politely and ask why.

Sorry, I can’t help with more explanation

Can’t tell me with why. I don’t like this. If you know what yer talkin’ about, you can defend yer answer, right?

Just to clarify. You’re saying you know that the rules of thermodynamics don’t apply at that level but you don’t know why? If you don’t know why, may I (respectfully) ask why you’re so sure of the answer?

He, bravely, goes another round.

Thermodynamics is about macroscopic variables. String theory is about particle physics. I’m sorry if this doesn’t help and hope someone else can give you a satisfactory answer.

This is nonsensical (but it didn’t fool you, did it?)  Anyway, I knew there wasn’t any more juice to be extracted. In the interest of civility, I was probably hypocritical:

In fact, that confirms my own understanding. Sorry to be pushy but I couldn’t tell from your very brief statement if you were just “playing” at aardvark as, unfortunately some do. I’m not sure what motivates people to do things like that (pretend to know when they do not) but it forces you to make a judgement about whether a responder is reasonably knowledgeable. Actually, you seem at about my own scientific level and I appreciate your thoughts on this.

I suspect that what’s going on at the string level is that a string is, in essence, a quantum of energy. Without an additional energy transaction, it is eternal. Maybe I will hear from a physicist who knows.

Later that month I tried to clear up my understanding of the way that separate particles get tangled up with each other over vast distances.

Does quantum entanglement transmit information faster than the speed of light (virtually instantaneous)? Some things I’ve read say that useful information can’t be sent this way. Others seem to suggest that this is an open question.

My answer came back:

Depends on your interpretation of “transmits information”. Unmeasurable things, such as a quantum state and phase, change instantly. But measurable things, things that are within the reach of experiments, cannot be used to transport information faster than light. Quantum physics has this loophole that some physical quantities are unmeasurable, out of reach for any kind of detection. That’s why Quantum theory can play this trick on us: a physical measure changes faster than light, but not a measurable one.

Thanks, Dan, for a knowledgeable and understandable answer. ( Not your fault that quantum mechanics is so damn nuts!)

I knew we were looking for radio signals from “ETs”. I wondered how far are we looking?

SEARCH FOR EXTRATERESTRIAL LIFE: I realize that the SETI program, itself, is currently mothballed, but I’m curious about something. What are the realistic distance limitations on this kind of radio search before noise is likely to overcome even a strong signal? Are their expectations of being able to identify (not translate, just identify) an intelligent signal beyond, say, 1000 light years? Further?

The answer arrived:

ask Carl Sagan

According to Brian Greene (and others), strings are under great tension but are not necessarily anchored at the ends. What force, then, balances this tension?

I don’t know, but sometimes he himself answers this kind of questions on his facebook page:https://www.facebook.com/BrianGreenePhysicist

on: https://www.facebook.com/pages/Quantum-Physics/or his personal fb page announcements can be found when he is answering questions (he is very kind)

I admit I got a little testy. For heaven’s SAKE!

If you don’t know, don’t answer. OK?

If you don’t know the answer, don’t respond, OK?

He got testy back and raised me one:

Did you know that you can ask him questions by yourself? What is YOUR problem to talk with me like this? NOT OK! WTF?! You could ignore my ! ANSWER. AND, DO NOT SCREAM AT ME, OK? Keep in mind when you do not know an answer, it’s important to know, who knows it. Thank you.

I gave you a direct link to one of the people who definitely will be able to answer you. Even much more trustworthy then me.

Who could answer your questions better then one of the scientists, who invented all that theories? You make me angry!

NO WAR!

no, not you make me angry, not even know you, sorry David.

Rage management, anyone?

My last exchange was with someone who asked:

What are some must-have android apps?

I said:

This one is easy to figure out with Google search. No need for aardvark, really. Lots of articles about “favorite” or “best” or “must have” apps. However, these lists probably tell you more about the writer than anything else. “Must haves” really depend on you and your lifestyle/work style. They also depend on your phone since not all apps work on all version of Android. 

As far as I am concerned, I like to set the home screen on the computers I use to “iGoogle” and then add “gadgets” for Google “tasks” “calendar”, “finance” (stock portfolio), and Google documents. Then, on the phone I set up corresponding apps. This way, all my “stuff” gets synced to all my computers/phones. Other apps I rely on are the kindle ereader app (small, of course, but always with me), note everything, and spreadsheet. Of course, “Navigator”, Google’s GPS system is terrific. Comes with my phone. Yours too, probably.

He already knew:

Ha ha I know. I asked this because I wanted to know how aardvark worked.

Thanks for the ride, aardvark. It’s been real.

———————————
Credit for the above image to Abraham Williams and Flickr Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 2.0 Generic License.


THE NEW RIGHT STUFF: A MECHANICAL HUMANOID FLYBOY

Posted by on Wednesday, 10 November, 2010

ONE SMALL STEP FOR.. UH.. ER..

NASA TO DUMP HUMANS FOR BIG MISSIONS?

Got a letter from one of my fans.

MisterScienceAintSoBad, you wrote that the manned space program is “stupid”. I think YOU’RE stupid.  - GottaBeHonest41

OK for you, GottaBe. I appreciate your candor. I guess I have been kinda rough on the manned space program. Quoting myself, quoting myself, I did say (talking about a Mars mission):

I don’t want to sound like a broken blog, but this isn’t the first time I’ve discussed the expensive conceit of sending humans to Mars. Quoting myself, “Throughout NASA’s history, there’s been considerable tension between those who believe in the symbolic importance of getting our human butts out there and those who feel that the astronomical (good word here) costs and barely manageable risks aren’t justified when robots are proving themselves so capable.”

You’re not gonna like this much, GottaBe, but  Sara Yin describes (PC Magazine)  a 1000 day project to send an astronaut-like mechanical gizmo to the moon, inspired by the practical reality that we can’t AFFORD to send humans up there during an economic recovery that most people seem to think is still a recession.

Don’t get me started.

In the past, the human or “manned” program had two things going for it:

1. No other choice since, at the time,  robots weren’t good enough.

2. Very dramatic since death always lurked round the corner.

Kept up the public’s interest, it did. A good thing since politicians could leverage the heroics of astronauts to win more public funding for pet space projects. But not much money in the pot these days and new missions are even more dangerous and problematic. Is it even possible to survive a Mars trip? Politicians are being forced to act (relatively) rational. Skip the heroics. You wanna do space? Here’s what I got. What can you do with it, pal?

NASA, it seems, got the message and it’s up with the hardware, down with the fleshware (hence NASA’s humanoid robot). The robot they came up with looks like a spaceman.spacewoman. A dead ringer for a person that’ll be able to use tools designed for human hands.

Plug.

Play.

So. MisterScienceAintSoBad says we should give the robot a name and enough personality for the public to identify with. Big doe eyes too, okay?

I guess I AM kinda pleased to read that NASA has decided to send a robot to the moon all dressed up like an astronaut. There’re about 76 good reasons to do space explorations with robots instead of people at this point.  It’s cheaper, it’s safer, and it advances the art of robotics.

Must be 73 more.

ScienceAintSoBadRating for robotic space missions in lieu of human ones? Why a 10. Of course.

———————————————————
Drawing credit:

By Walké (Image crée à partir de Image:Bote Boas Vindas2.png) [GFDL (www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (www.creativecommons.org/licenses/by-sa/3.0/) or CC-BY-SA-2.5-2.0-1.0 (www.creativecommons.org/licenses/by-sa/2.5-2.0-1.0)], via Wikimedia Commons


ROCKET SHIPS FADING OUT?

Posted by on Friday, 17 September, 2010

A NASA THING!

Image credit: NASA

THE DEMISE OF THE ROCKET SHIP

You and I have been using rocket ships as our basic transportation into orbit for as long as we can remember. Could say they’re the cruise liners of the IPad era. But they’re a bit rich at 1.3 billion dollars per cruise, aren’t they? They’re also inefficient and they’re not exactly “Environment Green”. Also, since each launch is a boo boo  away from a “big bang”, you would be right to conclude they’re dangerous as crap!

INEFICIENT BLUNDERBUSSES

Wasn’t it  Werner Von Braun who said that rocket ships give the Law Of Diminishing Returns a bad name, requiring, as they do, that the passenger list include the fuel tank, itself, which has to be dragged into orbit even as the stuff in it is being consumed? The tank (filled with liquid hydrogen and liquid oxygen) weighs about 1.7 million POUNDS and you gotta bring it along each trip if you hope to escape the pull of SOL (Stupid Ol’ Earth).

Well it’s not as inefficient as democracy but it’s close.

So, where was I? I had a point here..

(MISTERScienceAintSoBad shuffles his papers).

Ah.. I think I was telling you that NASA’s having a change of heart about this idiocy of flying 10 story buildings into orbit. If a rocket scientist’s THAT smart, he.she oughta be able to think him.herself right outta business. Least, that’s the theory.

So Stan Starr, Chief of the Applied Physics Laboratory at the Kennedy Space Flight Center has been scratching together a proposal to combine some existing technologies and then throw lots of money at them to see if the bills’ll stick. The idea seems to be a three phase system where the first phase is some kind of track or sled (could be electromagnetic propulsion or something else) which would accelerate the craft faster and faster, horizontally.  Then, after reaching some horrifying number of machs, scramjet engines (phase two) would cut in to fly the beast up to the point where, in phase three, a relatively dainty “second stage” type rocket would boost it on its way to its mission. And, instead of jettisoning the usual singed and dented crap to be hauled back for retrofitting, the launch vehicle would simply return to base and land.

Elegant.

Really, really, elegant.

And fictitious.

None of this exists. But all the basics are there. Rail guns exist. Rocket sleds? check. Neither is anywhere near “up to spec” as a space launch platform but, in astronautics, hope springs eternal. Ramjet supersonic spaceplanes? Che… well, coming along, anyway. Point is, that each phase has advanced technology to build on and could, with appropriate guidance and a humongous “stimulus check”, become part of an entirely new vision of space transport.

ScienceAintSoBad greets this proposal with lots of enthusiasm.

ScienceAintSoBadRating = 10 big ones. Go for it, guys!

CLASH OF EGOS. STEPHEN HAWKING VS GOD

How do I introduce Stephen Hawking?

Monumental.  The best of the best in Physics. Creatively brilliant. Reaching up, out of an ALS destroyed body that barely keeps him alive, to the highest order of accomplishment in one of the most difficult fields of endeavor.

Impossible.

How could anyone ignore the most profound handicaps to accomplish what he has?

As for God, what can I say?

Really he needs no introduction.

Like Hawking, he stands alone and his very existence seems filled with miracles. He is beloved  and admired by billions who look to him for comfort and guidance.

G_d (Image suffers from the usual deficiencies of trying to capture an ubiquitous being)

So what is one to make of the current clash between the two?

Hawking says God’s role in the creation of the universe  has been overimagined. In his new book, The Grand Design, Hawking asserts that the laws of physics provide a perfectly adequate explanation  for the beginnings of the universe and that, therefore, God’s role is redundant,  unnecessary, and suspiciously convenient for the religious establishment which benefits from the widespread belief that nature needed a hand from the Big Guy (the Big Guy, being God, by the way,  not Hawking).

He confronts, directly, the argument that only God could create something from nothing, discussing the quantum mechanical implications of doing that very trick.

God, on the other hand, has chosen to ignore Dr. Hawking.

So far, at least.

A guy as smart as Hawking will surely appreciate the advantages of leaving things that way.


Japan Wins Moon Race.

Posted by on Monday, 31 May, 2010

moonbot

JAPAN WINS MOON RACE.

Japan just revealed some of its plans for space exploration including the amazing hope of landing a robot explorer on the moon by 2015 and having an entire base of robots by 2020. – fastcompany.com

Email from OldTrekie5: Jesus! The friggin’ Space Shuttle’s shutting down and we don’t have squat to replace it. Are you kiddin’ me? What’s wrong with this country? PLEASE Mister ScienceAintSoBad, you gotta jump on this one.  Thanks. We’re counting on you, man!

MisterScienceAintSoBad answers:

It’s “get real” time, OldTrekie. The national debt is about 13 billion dollars (wanna see how it breaks down?) . Humans in spacesuits do look neat but it’s IRRATIONAL to send people off to Mars and to the moon when we can’t afford to buy ourselves a good oil cleanup.

ROBONAUTS NOT ASTRONAUTS

We humans had our chance to be heroes. It’s the turn of the robots now. Human space exploration isn’t too healthy for the humans doing the exploring (tendency to get nauseous,  irradiated, and, from time-to-time, blowed up) . It’s also super expensive.  And “human friendly” space systems dramatically stretch out the time it takes to get anything launched. So why not turn robots loose on the these projects? Worked on Mars, didn’t it?

A robonaut program would intensify our knowledge of sensors, communications, software systems and robotics, itself. That’s a bad thing?

Hey. It’s not like we have an alternative; we can’t AFFORD our “manned” programs. But I guess we’re gonna shuffle around fer awhile “studying it” till we admit the obvious. Meanwhile, as mentioned above, guess who’s going to the moon with a bevy of beautiful bots? Our Japanese comrades, that’s who.

Kadsuhiko Shirai, President of Waseda University, is the head of a government panel in charge of making us look silly while we’re scratching our butts debating the issue. “SHOULD we send humans to the moon? CAN we send humans to the moon? Whoops! Are those Japanese robots I see walking around on the moon?”

Credit for above photo:

Creative Commons License
This work is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License.

OTHER STUFF

Oil Spill

I SUPPOSE MisterScienceAintSoBad should have something more to say about the oil spill in the Gulf Of Mexico. But he’s as depressed about it as you are. We’re all riding this big wobbly planet together with nobody else to help us if we screw it up before we figure out how to drive it properly. Science is interesting and amusing. But it’s the competition that offers religious salvation. Don’t get TOO snooty. If we keep fouling things up, we may need them.

For this disaster, we’ll leave the blaming and the investigating to others, but if it makes you feel any better, we award the BP disaster in the Gulf Of Mexico a ScienceAintSoBadRating of ZERO .

Inventions

Our LectricLifter (TM) product’s coming along (slowly, I admit). We’ve actually had a  meeting with the testing lab (for the equivalent of UL listing) and we’re pretty sure we know who will be manufacturing it.

CORRECTION (Thanks, Alano)

The national debt should only BE 13 billion dollars. Make that 13 TRILLION big ones.