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PTS inside: Stern TV [deutsch]

<UPDATE>There’s a english version available.</UPDATE>

Um 8 Uhr klingelt der Wecker. Zeit für ein Frühstück ist nicht. Als erstes muss der Mietwagen geholt werden, ein Van ist bestellt. Bei Europcar angekommen die erste Überraschung: Es gibt keinen Van. Also muss ein Kombi reichen. Ein Opel Insignia wird vorgeschlagen, aber der Kofferraum ist laut meinen ersten Hochrechnungen zu klein. Unser R3 Rover ist halt doch schon ein ziemliches Biest! Also muss die größte E-Klasse herhalten. Ist mir auch lieber als ein Franzose ;)

Auf geht es zur TUHH wo der R3 Rover auf seine Abholung wartet, dort treffe ich auch Henning, der für die Rover Technik zuständig sein wird, während wir uns um die eigentliche Show kümmern. Die Rover und unser Gepäck passen knirsch! Kein cm bleibt ungenutzt.
Jetzt noch meine Freundin abholen. Hochschwanger wie sie ist, ist die Entscheidung Last-Minute. Zum Glück geht es ihr gut genug – sie kommt mit!

Nach 5 Stunden langweiliger Fahrt mit etwas Stau in Köln kommen wir auf dem Studiogelände an. Wir werden begrüßt und es gibt erste Fotos die gemacht werden. Wir bekommen unsere Geraderobe gezeigt. Nice! Kostenloses Fingerfood und Süßigkeiten! :)

Noch ist Zeit bis zur Show. Wir gucken uns an, was so vor einer Show alles besprochen wird. Sehr interessant! Wir haben zwar noch immer keinen Plan wie der Abend laufen wird, aber das wird schon! Also noch mal zurück in die Garderobe. Eigentlich sollte es noch eine Vorbesprechung mit Hallaschka geben, aber aufgrund des verlorenen Koffers des Foodstylisten müssen wir halt ohne auskommen. Das hilft natürlich gar nicht gegen Lampenfieber ;)

Aber hey! Robert hat unsere neuen Hemden mitgebracht. Das knallige Blau sollte wohl genügend auffallen. Als Hallaschka mich mit dem Shirt über den Flur laufen sieht meint er nur Scherzhaft: Hey, ihr habt ja richtige Hemden, ich glaub ihr meint das richtig ernst! :)
Als nächstes geht es in die Maske; juhu, wir werden geschminkt! (Als ich mir dann später die Fotos angucke, da verstehe ich was die anderen meinten mit: „Wow haben die euch braun geschminkt“) Gut das ich das so nicht sehen konnte :)

Unsere Hemden werden noch schnell gebügelt. Erst heißt es, wir sollten um 23:15 runterkommen, dann wird es aber noch später. Wir schauen SternTV, stellen aber schnell fest, dass es viel zu traurig ist und dass wir etwas Aufmunterndes brauchen. Der Zeitpunkt der Wahrheit naht, ein kurzer Gedanke schießt mir durch den Kopf: “Hey, das gucken echt viele Leute. Cool!”

Auf geht’s! Wir gehen runter. Die Stühle werden hingeschoben während unsere Film läuft. Zeit zum setzen. Ich habe die Fernbedienung für den R0 Rover, Henning sitzt im Publikum und fährt den R3. Ich hab keinen Ahnung was ich damit machen soll, aber es heißt: Immer schön damit rumfahren… Naja, dann mach ich das halt mal. Der Trailer läuft noch, ich freue mich die Dnepr Rakete zu sehen, so ein geiles Ding! Brad Sucks spielt auch und dann noch die rollende Mate Kiste! Hell yeah! Was für ein geniales Video!
Wir sitzen gerade, als gesagt wird, dass wir einen definitiven Starttermin haben. Öhm, ach so?! Super, gleich die erste Frage eine Fehlinfo ;) Robert antwortet souverän. Puhh, gerettet!

Warum wollen wir zum Mond? Zu schnell getriggert! Antwort etwas in den Sand gesetzt. Wird wohl schon keiner merken, dass ich die Frage nach dem Geld ignoriert habe! Henning fährt gelangweilt im Kreis herum. Dabei kommt der bekannte Bug vom Xoom zu tragen: die Räder schlagen mal kurz wild aus… Ohje… Wird aber wohl auch niemand merken ;) Mario erzählt von seinem Kindheitstraum mit dem Playmobil, find’ ich lustig :)

Hallaschka interessiert sich für die Rakete und fragt nach gebrauchten Interkontinental Raketen. Robert antwortet, dass sie zum Glück nicht gebraucht sind. Grandioser Witz! Nur leider versteht ihn niemand :(
Ich erkläre noch schnell wie wir mit der Rakete zum Mond kommen, so mit rumhüpfenden Astronauten und so. Hallaschka will mit dem R0 fahren, in der Probe hatte das ganz gut geklappt. Ich reiche es ihm rüber mit dem Kommentar: Das können sogar Kinder! Das Publikum lacht. Huch, so war das gar nicht gemeint ;) Aber war ja nicht auf meine Kosten der Lacher ;)

Wir erklären noch schnell wie das mit den großen Satellitenschüsseln funktioniert und was Google auf dem Mond will. Hallaschka fragt: Für wann dürfen wir die Karten buchen? Öhm, ja, öhm, ahh… . Mario setzt zu einer Antwort an. Ha! geschickt herumgerissen zu einem Spendenaufruf!

Das Interview war insgesamt 5 Minuten lang. Gefühlt war aber unser ganzer Auftritt nur 2 Minuten. Die Zeit ist echt gerannt wie verrückt, so etwas habe ich noch nie erlebt! Jetzt geht der Stress gleich weiter, denn wir müssen alles packen und dann gibt es noch einen Abendsnack. Wir kommen zurück in die Garderobe und unsere Handys laufen über mit Nachrichten! Alle möglichen Leute gratulieren uns und geben ihre Kommentare ab. Sehr nice!

Wir gehen zum Essen; es gibt ein reichhaltiges Buffet. Wir stärken uns. Später in der Nacht gesellt sich noch Hallaschka zu uns. Wir plaudern über die Mission, SternTV und einiges anderes. Echt ein netter Typ! Um 3:30 geht es dann ins Bett: SCHLAFEN!

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Wir brauchen eure Hilfe!

Unser Teammitglied Cornelius Krüger ist Student und braucht eure Hilfe. Für sein Studium und für die Arbeit bei uns benötigt er dringend einen neuen Laptop, damit er auch in Zukunft an der rechenintensiven Simulationssoftware arbeiten kann. Weil er Student ist, muss er mit relativ bescheidenen Mitteln auskommen und auch wir bei PTS können ihn nicht bezahlen, da alle ehrenamtlich mithelfen.

Er hat sich deshalb bei Absolventa um ein kleines Stipendium beworben. Dort kann sich jeder um ein Stipendium bewerben und die begrenzten Mittel werden dann mittels Online-Voting verteilt. Wir brauchen deshalb möglichst viele von euch, die für sein Stipendium voten und ihm dadurch helfen.

Das Voting läuft über Facebook und ist sehr einfach:

  1. Hier Cornelius’ Bewerbung aufrufen,
  2. unten auf “Stimme ab via Facebook” klicken,
  3. der Facebook-App den Zugriff erlauben
  4. und fertig!

Tausend Dank im Voraus!

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PTS inside: Stern TV

<UPDATE>Es ist auch eine deutsche Version verfügbar.</UPDATE>

The alarm rings at 8am. No time for breakfast. First, pick up the rental car; we reserved a van. Europcar has the first surprise: there is no van. A station wagon must do. An Opel Insignia (Buick Regal/Vauxhall Insignia) is suggested, but the trunk is too small according to my estimations. What can we do, the R3 rover is a sizeable beast. The largest Mercedes E-Class will have to do. Preferable to a French car, too ;) .

On we go to the university (TUHH), where the R3 rover is awaiting pickup. Henning is also there, who will be responsible for the rover technically, while we will be doing the actual show. The rover and luggage barely fit! Not a centimeter remains unused. Just picking up my girlfriend. Since she’s in advanced pregnancy, it’s a last minute decision for her. Luckily she feels good, she’s coming along.

 

After five hours of boring drive and traffic jams in Cologne, we arrive at the studio grounds. We are greeted, some photos are made, and we are shown our dressing room. Nice! Free finger food and sweets :) !

There is still time before the show, so we see what is all discussed and planned before a show. Very interesting! We still don’t have a plan of how it’ll all work out, but we’re sure it will. Back to the dressing room. There was supposed to be a preparation with Hallaschka, but because of the lost case of the food stylist, we have to do without that. That doesn’t help the stage-fright ;) .

But, hey, Robert brought our new shirts. The bright blue should be conspicuous enough. As Hallaschka sees me across the hall with the new shirt, he jokes: “Hey, you have real serious shirts, you must be real serious!” :) Next, we’re going to make-up; hey, make-up! (When I saw the photos later, I understood what everyone was saying about: “Wow, they really gave you a dark tan.”) Good thing I couldn’t see it at the time :)

Our shirts get a quick ironing. We are first told to be ready at 11:15pm, but it got later than that. We’re watching Stern TV, but it’s too depressing, and we need something cheerful. The moment of truth is approaching, and a brief thought races through my head: “Hey, a lot of people will be watching this. Cool!”

Let’s go! We’re going to the stage, and the chairs are being brought as the recording starts. Time to sit. I have the remote for the R0 rover; Henning sits in the audience and controls the R3. I have no idea what I should be doing, but I’m told to just drive it around … Alright, I can do that. The trailer is showing, and I like seeing the Dnepr rocket, how awesome! Brad Sucks’ music plays, and the Mate (herbal drink) crate! Hell, yeah, it’s an awesome video!

We just sat down, as the announcer says that we have a definite launch date. Oh, really? Man, the first statement is already wrong! However, Robert answers competently and we’re saved.

Why do we want to reach the moon? Answered too quickly and messed up. Hope nobody notices that I ignored the question about the prize money! Henning lackadaisically drives the rover in circles. This triggers the known issues with the Xoom: the wheels suddenly jerk a bit … oh no … but it looks like nobody notices. Mario tells of his Playmobil childhood dream; amusing :) .

Hallaschka is curious about the rocket and asks about used ICBMs (intercontinental ballistic missiles). Robert answers that luckily they are not used. Great joke. Nobody gets it :( .
I explain quickly how the rocket will help us get to the moon, with jumping astronauts and stuff. Hallaschka wants to try driving the R0; he did alright in the dry run. I pass the remote saying: “Even children can do that!” The audience laughs. Umm, I didn’t mean it like that, but, then, they’re not laughing at my expense ;) .

We quickly cover how we’ll be using large radio dishes, and why Google wants with the moon. Hallaschka asks: “When can book tickets?” Err, well, umm … Mario jumps into the breach! Ha, he cleverly converted it into an appeal for donations!

The whole interview lasted five minutes, but it felt like at most 2 minutes. Time flew like crazy, I’ve never been through anything like that before! And the stress continues; we have to pack everything back up and get a late snack. We get back to our dressing room, and our mobile phones are choking with messages. All kinds of people are congratulating and commenting. Very nice!

We’re getting our late snack, a large buffet. We recoup some energy. Later in the night Hallaschka joins us, and we chat about the mission, SternTV and a number of other things. Real nice guy. At around 3:30am I am finally back at my place, ready for sleep.

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Happy April Fools’ day!

Originally we didn’t want to tell you “the Obvious”, but due to some serious email requests we really feel the urge to clarify and tell you that yesterday’s blog post was an April Fools’ prank.

We have NOT changed our mission goals and we do NOT want to terraform our beloved moon. There are NO plans to “generate” an artificial lunar atmosphere with the help of nuclear power and we are NOT going to descend from the lunar orbit with a parachute, but with rocket thrusters, like everybody would do. We’re still developing our four-wheeled rover Asimov and he’s the one who’s going cruise on the lunar surface, NOT a hovercraft.

We hope you loved and laughed reading yesterday’s blog post. We also had fun reading others April Fools’ jokes like the one about another Space Shuttle mission »STS-136« using Atlantis to support the latest ATV Missions to the International Space Station (only available in German language, sorry). We’re looking forward to next year’s 1st April and hope to read good stories again!

Yours, Part-Time Scientists

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Part-Time Scientists planning to generate lunar atmosphere for subsequent moon landing

Please also read the following corresponding blog update.

Berlin 1st April 2012 – Because none of the Part-Time Scientists were able to achieve a successful landing in the state-of-the-art lunar landing simulator, the team has decided to generate an atmosphere on the moon using nuclear power. This would achieve several benefits for their lunar mission to be carried out before the end of 2015.

Team leader Robert Böhme delights “An atmosphere on the moon would allow us to land with parachutes instead of rocket thrusters, and because this is a much slower and gradual process, it is much easier to steer and control. We will achieve a much higher accuracy in landing and reduce the risk of a failed mission through an impact event.” An atmosphere also simplifies operation and construction of robots on the moon, because the extreme environmental temperature changes are sharply reduced, which lowers requirements for the mechanics and electronics of the lunar rover Asimov and subsequent robots. This enables to use all COTS components, which significantly reduces cost.

The atmosphere will be generated through heating of the lunar surface (regolith). At very high temperatures, the lunar rock releases the hydrogen and oxygen bound in silicates, which can then combine to form water as steam, which will be the foundation for the atmosphere. Using this process will require several months to build enough atmosphere for a soft landing. Nuclear power is required to achieve the temperatures necessary and sustain them over several months. The Part-Time Scientists will acquire this material from reprocessing of spent nuclear fuel rods from European nuclear power plants. Other countries have also inquired about possible collaboration.

A lunar atmosphere also allows for testing of new transport ideas on the moon. For example, hovercrafts have to date only been used on Earth, but an atmosphere would enable their use on the moon. The benefits are striking: a overcraft can just glide over small craters or stones, and loose regolith, in which a rover could simply get stuck, would not present an obstacle, either.

In principle an atmosphere can make the moon habitable for mankind, but the radiation caused by the nuclear powered atmosphere generation means that the moon will only be habitable for robots for some several thousand years. This is why the Part-Time Scientists are looking for partners in fully automated exploitation of the moon’s natural resources through robotic mining, extraction and processing.

A vision of this new atmosphere on the moon is depicted in this video:

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Thanks for the Teslas

While we would have liked to get a few of these Teslas, they wouldn’t get our Asimov any closer to the moon, and after all that’s why we are really doing this. So we are even happier to have gotten some of these Teslas, because they help Asimov get to the moon and help us get a look at what’s on the moon.

Our software team will run many simulations on them. For example, we will simulate the translunar injection route our rover and lander will take to the moon, and probably a couple of million times, each with slightly different parameters for payload weight, total fuel, timing and duration of thruster burns. Each new simulation will have some parameters altered according to trends in the previous simulations. The Tesla is what lets us do millions of simulations in a reasonable amount of time.

No, that’s not the Tesla we got.The same can be done for the landing. With a particular lunar orbit and a target landing site, we can test different thruster burn schedules or even an autonomous control landing algorithm, which leads to safer landings.

Our regular computing hardware without the Teslas would let us do maybe 100,000 simulations before we need to launch, and while that’s not terrible, it would tie up our computing resources for a long time, and we’re always looking for better approaches to our problems that give our mission the greatest chance of success.

Once the rover is safely landed, its cameras will be recording stereoscopic, HD-resolution images and transmit then back to Earth. There we will be processing them to extract terrain features and generate a very highly detailed topographic map of the rover’s surroundings. The NVIDIA Teslas will be doing all that work, possibly in real-time, alerting us to the terrain features around the rover and letting the remote driver avoid obstacles or dead ends.

Again, without the Tesla, our computing power would not get us to real-time or close (there is always the Earth-Moon transmission delay), and we would have to drive with a 2D image and no topographic map. As with the simulations above, it is likely possible to complete the mission with 2D image and no maps, but we were seeking a better solution, and found in NVIDIA a gracious partner that believes we can put their products to good use and supplies us with the computing capacity to take our mission to the next level.

So thanks for the Teslas.

The Part-Time Scientists

If we caught your attention, follow us Twitter, visit our Team Blog or

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Crossing Borders

On the 2nd February 2012, 16:09 (UTC+1) it has happened: We hit the 50.000 barrier on facebook!

We’re proud of our fans.

There are two things that keep us working every day and night. On the one hand it’s the endless fun and delight of doing uber-awesome rocket science and on the other hand it’s YOU, our fans, who support and encourage us. We don’t want to miss any of the two side, neither the rocket science nor the fans and Part-Time Scientists wouldn’t exist any longer if you take away one.

And that’s the reason we want to say “Thank You!” Thank you, for being such great fans. Thank you for cheering us up. Thank you for supporting us every day since we entered into this race to the moon. And we’re confident we’ll win – with YOUR help!

YOU have given us so much, we want to give you back a bit. We came up with the idea of starting a small contest to celebrate all the 50.000 of you. We will start on facebook at the beginning of the week, more details will follow on Monday.

By the way: GREAT prizes from NVidia, 3Dconnexion and Part-Time Scientists are waiting for YOU!

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Limited “PTS 2012 calendar” edition!

Lost in time? Well, we might have a solution for that problem:
Our limited “PTS calendar 2012″ edition. Go and have a look at our PTS shop.

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3D Engines and Tools

Three days ago we got the following question from Salman Qaiser Al Khateeb on Facebook:

“What engine/tool are you using [for 3D graphics]?”

And we promised to answer that question properly, so here’s what Wes, our Head of Software guy, says:

“What engine/tool are you using [for 3D graphics]?”

We use several technologies for our graphics and are currently consolidating our tool selections. To really make the choices, we have to understand why we’re building our applications.

A rover on every desktop

A critically important application is our simulator. When you’re testing AI logic to avoid a crater, code breakpoints and cout statements just don’t work as well as watching Asimov heroically dodge a crater. A 3D simulation engages our fellow team members and, frankly, engages us developers as the fun loving humans that we are. Our simulator is shaping up as C++-based OpenGL using Visualization Library, Qt, and Bullet Physics.

We’ve tried handwritten OpenGL in C++ and 3D in the Java-based Processing environment. Both were Ok but not quite what we need. Custom crafting OpenGL code is time consuming, so we selected a library to make terrain and 3D model visualization quicker to write without sacrificing the cross platform nature of OpenGL. 3D in Processing is easy to do but ultimately risky for us – it’s a common complaint when developers move from Java back to C++ that they forget to call delete and programs spring memory leaks.

Visualizations

Speaking of AI, we also see a need to peek into the inner workings of complex mission critical algorithms. Again, breakpoints and logging statements can only go so far. We can write complex behavior monitors to look for unusual behavior, but nothing, and I mean nothing, so far can beat the insight of a fully engaged human. We’ve used the Graphviz tool to look at genetic program output and are considering the Ubigraph software for real-time animation of complex data structures.

The future

Ultimately, our simulations and visualizations will find their way into our ground control software. It’ll be tied to GPU-based (CUDA and OpenCL) risk assessments and to Qt-based remote control software. Personally, I’d love to see the whole control room projected onto walls with everyone using augmented reality tablet computers. Framework suggestions and volunteers welcome for that one!

-Wes

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28C3: Evolving custom communication protocols

Our last and final presentation for this year is now available on YouTube. Wes is talking about “evolving custom communication protocols” with the help of CGP and GPU computing power. It’s helpful if you see his first talk (Automatic Algorithm Invention with a GPU) before this one, as it’s referenced and explains CGP in all detail.

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You may also be interested in the list of all our talks at the 28C3 this year:

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