Video

Lightyear FM

Want a perspective on what flying through space might actually look like?  Here’s one project to give you an idea.  Working on the knowledge that radio waves travel at the speed of light, this simulation shows you the local neighbourhood near Earth (excluding exoplanets) up to the limit of the first Earth radio broadcasts; up to 110 years ago (as of 2015).

Things I learned from this:

  • In general, stars don’t float randomly by themselves.  They appear in clusters.  We’re part of a pretty little cluster of mostly much tinier, dimmer stars than our own, that might look like the Pleiades with a red-shift in someone else’s perspective.
  • We can infer that most of the stars near us are smaller/dimmer than our own because most of them have alpha-numeric names (more on that in a minute).  Also, stars progress from red to orange to yellow to white to blue in terms of brightness and most of the stars around us are more orange than we are.
  • Every once in a while you do get singular stars just floating in a void, but it’s the exception, not the rule.
  • There are two nebulae relatively near to us.  One’s about 40 light years away and the other is about 80 light years away.  Each is about 10 light years across.

Naming conventions of stars:

  • The oldest stars we know about have proper names.  Those tend to be the brightest from our perspective and are typically the ones visible with the naked eye.  Most such names are derived from the Arabic language.  You’ll see relatively few of them in our local neighbourhood (Sirius, Fomalhaut, Pollux, etc.)
  • Sometimes stars are named for astronomers or the people who discovered them.  You’ll see a couple of those in this simulation.  One of them, Barnard’s Star, which you’ll see right after the Centauri stars that are our closest neighbours, blasted right through the edge of our solar system only 70,000 years ago!  Talk about a near-miss!
  • Some stars are catalogued.  The Bayer Designation names stars by a lower case Greek letter generally representing its corresponding number, plus the constellation it appears in. (ie. Sigma Sagittarii).  Once all 26 Greek letters have been assigned, letters of the Arabic-derived alphabet are used (ie. G Scorpii).  Sometimes when concurrent stars were discovered (like, say the smaller star in the Alpha Centauri binary) it was designated with a superscript.  The Flamsteed Designation is used when no Bayer Designation exists or when the Bayer designation uses numeric superscripts, because it’s less awkward.  (ie. 61 Cygni).  These stars are usually visible with a decent telescope.
  • The most recently discovered stars, visible with ultra high resolution or space telescopes and tracked by computers, are named with an alpha-numeric designation based on their position in the sky.  Over 990 million such objects exist.
  • Special cases: Pulsars are designated by the prefix PSR, with a series of hyphenated numbers in which the first indicates its right ascension and the second its degree of inclination.  Supernovae are designated by the prefix SN, plus the year they were discovered in, and if there was more than one, a letter indicating the order of discovery (ie. SN 1987A.)  A few supernovae are known by the year they occurred in (ie. SN 1604, also known as Kepler’s Star).  Novae are usually given a name according to the naming convention of the General Catalogue of Variable Stars, which includes a number or letter designation and the constellation it’s from (ie. V841 Ophiuchi, SZ Persei, T Bootis.)

Here’s a preview to show you what it looks like: you can find the simulation itself at Lightyear.fm.  Note that if you hover your cursor over each celestial body (save the Earth, the Moon and the Sun) it will tell you what it is and how far away from Earth it is.  Enjoy the simulation!

Lightyear.fm – An interactive journey through space, time, & music from chris baker on Vimeo.

Video

Les grands courants philosophiques à travers les Sphères Connues

Les voyages de Deryn Naythas

meteors-circling-the-planets-fantasy-hd-wallpaper-1920x1200-6684

Si les peuples qui vécurent durant l’Âge des légendes semblent devoir posséder des motivations incompréhensibles pour les espèces plus jeunes, et que les Âges sombres ne soient finalement qu’une succession de conflits à une échelle sans précédent, c’est bien durant l’Âge spirituel que se développent et s’affirment de grands principes qui vont rapidement exalter les ancêtres des Syndarh, des Mordd et des primitifs Valoriens.

Le Point d’Equilibre, la pensée mystique

MindsEyeSous la guidance des Sharood, les Voies de l’Esprit sont développées en opposition au règne de la magie Reigar. Bien des élus de pratiquement tous les peuples d’alors sont initiés aux pratiques psioniques, afin de pouvoir par la suite dresser les leurs contre une tyrannie mystique qui n’existe déjà plus. A travers ce conflit que souhaitent initier les Sharood apparaît cependant le fondement d’un mode de pensée qui amènera la région des Sphères Connues à s’affranchir régulièrement du joug d’un…

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Video

Symphonies of the Planets

Although space is a virtual vacuum, this does not mean that there is no sound in space.  Sound does exist as electromagnetic vibrations.

Through specially designed instruments, the Voyager, INJUN 1, ISEE 1, and HAWKEYE space probes used Plasma Wave antenna to record the vibrations of the planets that they visited that are within the range of human hearing (20 to 20,000 Hz).

To be fair, however, they are often quiet; quiet enough that they are difficult, if not impossible, for the human ear to hear.

The recorded sounds are the complex interactions of charged electromagnetic particles from the Solar Wind, ionospheres, and planetary magnetospheres.  Here’s a sample of some of the recordings released by NASA:

Here is a recording (and photos) of the noise of the Singing Comet, 67P, as recorded by the Rosetta spacecraft (though in this case the volume has been increased by 10,000 times):

And here is a full playlist of the Symphony of the Planets.  These five CDs, which are now out of print, were created from the complex sounds recorded by the Voyager probes.

Yes, really.  This is real world stuff I’m talking about, not just Arcane Space!

So if you’d like to imagine what it sounds like aboard a Spelljamming ship, picture that the closer you got to a planetary body, the more of this kind of sound you would hear.  It would start as faint, water-like popping noises.  Then you would wonder when the wind noise had started.  Then you might notice a high-pitched drone like a wet finger on crystal or a Tibetan singing bowl.  In some cases (Suns, large planetary bodies) you might notice a low droning buzz, like the sound of a WWII airplane.  The closer you got to the planetary body, the louder it would get, and when you reached a planetary gravity plane, it would be a veritable cacophony to ears accustomed only to the creak of the ship, the flap of sails and the quiet of the Void; which would fade again into the background once you hit atmosphere and terrestrial noises began to reach your ears.  Or you might be sailing along in space, likely with continual distant popping sounds that would be more rapid the closer you were to the center of the sphere, and all of a sudden a Solar Gale might whip wind and ringing and high-pitched drones through the air envelope.  In which case, a sargasso might be heralded by a sudden, deafening silence.

 

Bai’huan, les sanctuaires des cimes brumeuses

Les voyages de Deryn Naythas

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Sphère de cristal : Sphère du Singe d’acier

Type de monde : Sphérique rocheux

Taille : D (diamètre équatorial de 5 123km)

Rotation : 54 heures

Révolution : 832 jours

Lunes : Bai’lan

Population : 589 234 Lao, 156 327 Niriki

Trame magique : Tellur renforcée, magie profane dominante

La petite planète centrale du système de Bai Long est un monde dominé par le règne minéral, qui prend ici la forme de hautes chaînes montagneuses aux sommets enneigés. Les contreforts dominent quelques plaines rocailleuses battues par des vents froids, mais la surface de Bai’huan est plus connue sous le nom de dédale du dragon-montagne, tant les passes et défilés forment en effet un labyrinthe naturel à l’échelle planétaire.

Seuls les sommets équatoriaux sont peuplés par les Lao, qui trouvent là des températures moins rudes qu’aux deux pôles, domaines des Niriki. Le monde est surtout renommé pour la rareté de ses séismes et autres…

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Book Review: 2001 A Space Odyssey by Arthur C. Clarke

2001: A Space Odyssey (Space Odyssey, #1)2001: A Space Odyssey by Arthur C. Clarke
My rating: 5 of 5 stars

This is the true heady wine of science fiction crafted by the hand of a master. (Quoting Terry Pratchett, which he was saying in regards to “Cities in Flight” by James Blish, but it fits here).

I saw the movie years ago, when I was almost too young to understand it. As always, the book was much better.

I see no reason to reiterate the plot; everyone knows it by now I’m sure. I want to talk about the craft of the writing. The style. The way he writes with a minimalist hand, like Miyamoto Musashi, doing nothing which is of no use.

The first part of the book reads like a spy novel. The second part reads like a space suspense thriller, with the style of the writing being as stark as the setting. Which is why the lush, vividly detailed conclusion is like suddenly really seeing colour after ingesting hallucinogenics; in addition to being mind-blowing in its scope and concept.

The scene where Dave confronts HAL? It’s even creepier in the book than the movie. I felt terrible for a malfunctioning, murderous computer. How do you even do that? That is just good writing.

So even if you haven’t read it because it’s a cultural icon and a classic, read it because it’s just well written. And don’t be discouraged by the title; it reads just as easily today as it did when it was written.

View all my reviews

SJA3 Crystal Spheres at DriveThruRPG!

Traveling the space lanes is risky and mysterious, and danger comes in many forms. The rescue of a tiny ship from pirate attackers leads to the discovery of a monumental, supernatural evil. Nothing is ever routine in space.

Crystal Spheres takes player characters through four unique crystal spheres to battle a powerful force of darkness. Player Characters will find themselves fighting not just for their lives, but the fate of an entire solar system and its millions of inhabitants.

“Crystal Spheres” is an adventure for the AD&D Spelljammer campaign setting. The Spelljammer boxed set is required to play. This 64-page adventure will easily adapt to any campaign world.

*****

Product History

SJA3: “Crystal Spheres” (1990), by J. Paul LaFountain, is the third Spelljammer adventure. It was released in October 1990.

Continuing the “SJA” Series. “Crystal Spheres” continues the Spelljammer adventures. It’s an epic adventure, as was found in SJA1: “Wildspace” (1990): a sphere’s sun is on the verge of being snuffed out, and the players must save it.

Adventuring Tropes. “Crystal Spheres” lies on the line between the adventuring tropes of the ’80s and ’90s. It contains lots of random encounters and mapped locations. However, it also features events that drive players along a path to confront the problems of the underlying storyline.

Expanding Wildspace. True to its name, “Crystal Spheres” does a great job of providing good reasons to adventure across Wildspace from one sphere to another. Along the way it details four new crystal spheres: Herospace (which is for heroic adventures only, with 9 planets divided by alignment); Faeriespace (which is one gigantic community); Greatspace (which is an elder sphere focused on nobility and honor); and Darkspace (which is a sunless, shadowy void).

Unfortunately, one of the problems with Spelljammer was that it never brought together its many spheres into a coherent setting. The Spelljammerboxed set (1989) focused on the Radiant Triangle of Greyhawk, Krynn, and the Realms, but then the six Spelljammer adventures barely touched on those areas. Similarly, the worlds of Darkspace, Faeriespace, Greatspace, and Herospace would never be heard from again.

(Though TSR never created a larger Spelljammer setting, some fans have taken the next step, compiling all the spheres of Wildspace into a cohesive whole.)

“Crystal Spheres” also includes a beautiful chart comparing the sizes of the many spelljamming vessels revealed to date — including the Hummingbird from this very adventure.

About the Creators. LaFountain did a scattering of TSR work in the early ’90s. This was his premiere freelance work; he’d later contribute to MC8: “Monstrous Compendium Outer Planes Appendix” (1991), SJR3: “Dungeon Master’s Screen” (1991), and some supplements for the Buck Rogers XXVC RPG.

About the Product Historian

The history of this product was researched and written by Shannon Appelcline, the editor-in-chief of RPGnet and the author of Designers & Dragons – a history of the roleplaying industry told one company at a time. Please feel free to mail corrections, comments, and additions to shannon.appelcline@gmail.com.

Ideas for Adapting Spelljammer for 5th Edition

Here’s a really neat way of making Spelljamming work for 5th Edition, combining elements of classic Spelljammer, Shadow of the Spider Moon, and Dragonstar.  Sounds great!  Thanks, Cosmonomicon!

Nouvelle-Kathyk, le Trône brisé

Les voyages de Deryn Naythas

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[Vulkarus (Vodane)]

Sphère de cristal : Sphère Vodane

Type de monde : Planétoïde rocheux

Taille : C (diamètre de 848km)

Rotation : Aucune

Révolution : Aucune

Lunes : Aucune

Population : 108 563 vodanes

Trame magique : Vacuu renforcée, magie divine dominante

L’ancienne métropole cristalline de Vulkarus s’effondra partiellement après la mort de l’Empereur Vulkaran, mais les prières des fidèles mobilisèrent l’attention du Roi-cristal, qui stoppa la destruction de la glorieuse cité. Depuis lors, le planétoïde a été rebaptisé Nouvelle-Kathyk et attire les fidèles des divinités vodanes libérées de leur geôle. La cité souterraine est désormais un lieu bourdonnant de vie, tandis que les grandes avenues cristallines ne sont plus que ruines, arpentées par les dangereuses araignées-cristal qui en étaient autrefois les gardiennes.

Contrairement à Vulkarus, Nouvelle-Kathyk est une métropole indépendante, et dont les nombreuses galeries souterraines sont agrandies pour permettre le développement de cultures. Les anciens autels dissimulés au…

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Baln’mazzad, les pyramides enterrées

Les voyages de Deryn Naythas

Sphère de cristal : Dronesh-Qual’nareeth

Type de monde : Sphérique rocheux

Taille : D (diamètre équatorial de 5 723km)

Rotation : 27 heures

Révolution : 402 jours

Lunes : Gal, Ohulu

Population : 78 543 Lirii, 46 521 Goshènes, 39 478 P’z’l kreen

Trame magique : Tellur resserrée, magie divine dominante

Le monde médian du système de Dronesh-Qual’nareeth est un vaste désert de sable bleu, balayé par des vents chauds se transformant fréquemment en tempêtes hautement destructrices. Seule une haute chaîne de montagnes équatoriales permet de briser ces dangereux phénomènes climatiques, qui rendent la majorité de la surface impraticable. Une flore s’est développée dans les profondes vallées protégées des vents, mais elle prolifère plus facilement à travers de vastes réseaux naturels de cavernes, creusées par des rivières souterraines qui restent les ressources majeures pour les peuples de Baln’mazzad. La faune à la surface est pour sa part composée de nombreux prédateurs du désert, qui…

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