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Enzmann Starship
The Enzmann starship is a concept for a crewed interstellar spacecraft proposed in 1964 by Dr. Robert Enzmann. A three million ton ball of frozen deuterium would fuel nuclear fusion rocket engines contained in a cylindrical section behind that ball with the crew quarters. The craft would be about long overall. Design The ball of frozen deuterium would fuel thermonuclear-powered pulse propulsion units, similar to Project Orion engines. The spacecraft would be assembled in Earth orbit as part of a larger project preceded by interstellar probes and telescopic observation of target star systems. The rest of the spacecraft would be attached behind the ball as a seamless metallic fuel tank. The proposed method of tank construction would be to expand a plastic balloon in space and coat it with metal. The spacecraft would be modular, and the main living area would be three identical wide and long cylindrical modules. The Enzmann could function as an interstellar ark, supportin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enzmann Starship-render 01
The Enzmann 506 was a Swiss automobile manufactured from 1957 until the late 1960s (some sources claim 1969 as the final year). The company purchased new Volkswagens, unbolted the Beetle body shells from the floorpans, and refitted them with elegant fiberglass bodywork produced by a boatyard in Grandson. Some 100 cars were produced, and you could also buy separate fiberglass bodies to make the assembly yourself. The car's name—506—was nothing more than the stand number under which Enzmann debuted their creation at the 1957 Frankfurt Auto Show. Volkswagen engines, naturally, were fitted as standard, but the similar Porsche 356 powerplant was also easy to fit into the Beetle chassis. Some owners were also bold enough to add Okrasa tuning parts to these engines, with MAG or Judson Superchargers. As of 2009, it was reported that one could still buy an Enzmann body kit from the descendants of the car's creator. See also *Volkswagen Karmann Ghia *Porsche 356 *Porsc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David A
David (; , "beloved one") (traditional spelling), , ''Dāwūd''; grc-koi, Δαυΐδ, Dauíd; la, Davidus, David; gez , ዳዊት, ''Dawit''; xcl, Դաւիթ, ''Dawitʿ''; cu, Давíдъ, ''Davidŭ''; possibly meaning "beloved one". was, according to the Hebrew Bible, the third king of the United Kingdom of Israel. In the Books of Samuel, he is described as a young shepherd and harpist who gains fame by slaying Goliath, a champion of the Philistines, in southern Canaan. David becomes a favourite of Saul, the first king of Israel; he also forges a notably close friendship with Jonathan, a son of Saul. However, under the paranoia that David is seeking to usurp the throne, Saul attempts to kill David, forcing the latter to go into hiding and effectively operate as a fugitive for several years. After Saul and Jonathan are both killed in battle against the Philistines, a 30-year-old David is anointed king over all of Israel and Judah. Following his rise to power, David ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstellar Travel
Interstellar travel is the hypothetical travel of spacecraft from one star system, solitary star, or planetary system to another. Interstellar travel is expected to prove much more difficult than interplanetary spaceflight due to the vast difference in the scale of the involved distances. Whereas the distance between any two planets in the Solar System is less than 30 astronomical units (AU), stars are typically separated by hundreds of thousands of AU, causing these distances to typically be expressed instead in light-years. Because of the vastness of these distances, non-generational interstellar travel based on known physics would need to occur at a high percentage of the speed of light; even so, travel times would be long, at least decades and perhaps millennia or longer. As of 2022, five uncrewed spacecraft, all launched and operated by the United States, have achieved the escape velocity required to leave the Solar System as part of missions to explore parts of the out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomy Magazine
''Astronomy'' is a monthly American magazine about astronomy. Targeting amateur astronomers, it contains columns on sky viewing, reader-submitted astrophotographs, and articles on astronomy and astrophysics for general readers. History ''Astronomy'' is a magazine about the science and hobby of astronomy. Based near Milwaukee in Waukesha, Wisconsin, it is produced by Kalmbach Publishing. ''Astronomy''’s readers include those interested in astronomy and those who want to know about sky events, observing techniques, astrophotography, and amateur astronomy in general. ''Astronomy'' was founded in 1973 by Stephen A. Walther, a graduate of the University of Wisconsin–Stevens Point and amateur astronomer. The first issue, August 1973, consisted of 48 pages with five feature articles and information about what to see in the sky that month. Issues contained astrophotos and illustrations created by astronomical artists. Walther had worked part time as a planetarium lecturer at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cover Art
Cover art is a type of artwork presented as an illustration or photograph on the outside of a published product such as a book (often on a dust jacket), magazine, newspaper ( tabloid), comic book, video game (box art), music album (album art), CD, videotape, DVD, or podcast. The art has a primarily commercial function, for instance to promote the product it is displayed on, but can also have an aesthetic function, and may be artistically connected to the product, such as with art by the creator of the product. Album cover art Album cover art is artwork created for a music album. Notable album cover art includes Pink Floyd's ''The Dark Side of the Moon, King Crimson's In the Court of the Crimson King,'' the Beatles' '' Sgt. Pepper's Lonely Hearts Club Band'', ''Abbey Road'' and their self-titled "White Album" among others. Albums can have cover art created by the musician, as with Joni Mitchell's ''Clouds'', or by an associated musician, such as Bob Dylan's artwork for the cov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balloon Satellite
A balloon satellite is inflated with gas after it has been put into orbit. It is also occasionally referred to as a "satelloon", which is a trademarked name owned by Gilmore Schjeldahl's G.T. Schjeldahl Company. List of balloon satellites abbreviations: * pcr = passive communications reflector, satellite reflects microwave signals. * ado = atmospheric density observations * spc = solar pressure calculations, estimate impact of solar wind on orbit. * tri = satellite triangulation, measuring the Earth's surface. * SC = Sensors and camera for earth curvature images Echo 1 and Echo 2 balloon satellites The first flying body of this type was Echo 1, which was launched into a high orbit on August 12, 1960, by the United States. It originally had a spherical shape measuring , with a thin metal-coated plastic shell made of Mylar. It served for testing as a "passive" communication and geodetic satellite. Its international COSPAR number was 6000901 (9th satellite launched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time Dilation
In physics and relativity, time dilation is the difference in the elapsed time as measured by two clocks. It is either due to a relative velocity between them ( special relativistic "kinetic" time dilation) or to a difference in gravitational potential between their locations ( general relativistic gravitational time dilation). When unspecified, "time dilation" usually refers to the effect due to velocity. After compensating for varying signal delays due to the changing distance between an observer and a moving clock (i.e. Doppler effect), the observer will measure the moving clock as ticking slower than a clock that is at rest in the observer's own reference frame. In addition, a clock that is close to a massive body (and which therefore is at lower gravitational potential) will record less elapsed time than a clock situated further from the said massive body (and which is at a higher gravitational potential). These predictions of the theory of relativity have been repeatedl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Relativity
In physics, the special theory of relativity, or special relativity for short, is a scientific theory regarding the relationship between space and time. In Albert Einstein's original treatment, the theory is based on two postulates: # The laws of physics are invariant (that is, identical) in all inertial frames of reference (that is, frames of reference with no acceleration). # The speed of light in vacuum is the same for all observers, regardless of the motion of the light source or the observer. Origins and significance Special relativity was originally proposed by Albert Einstein in a paper published on 26 September 1905 titled "On the Electrodynamics of Moving Bodies".Albert Einstein (1905)''Zur Elektrodynamik bewegter Körper'', ''Annalen der Physik'' 17: 891; English translatioOn the Electrodynamics of Moving Bodiesby George Barker Jeffery and Wilfrid Perrett (1923); Another English translation On the Electrodynamics of Moving Bodies by Megh Nad Saha (1920). The incompa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Of Light
The speed of light in vacuum, commonly denoted , is a universal physical constant that is important in many areas of physics. The speed of light is exactly equal to ). According to the special theory of relativity, is the upper limit for the speed at which conventional matter or energy (and thus any signal carrying information) can travel through space. All forms of electromagnetic radiation, including visible light, travel at the speed of light. For many practical purposes, light and other electromagnetic waves will appear to propagate instantaneously, but for long distances and very sensitive measurements, their finite speed has noticeable effects. Starlight viewed on Earth left the stars many years ago, allowing humans to study the history of the universe by viewing distant objects. When communicating with distant space probes, it can take minutes to hours for signals to travel from Earth to the spacecraft and vice versa. In computing, the speed of light fixes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bob Eggleton
Bob Eggleton (born September 13, 1960) is an American science fiction, fantasy and horror artist. Eggleton is a nine-time Hugo Award–winner for Best Pro Artist in science fiction and fantasy, first winning in 1994. He won the Hugo Award for Best Related Book in 2001 for his art book ''Greetings from Earth''. He also won the Chesley Award for Artistic Achievement in 1999 and was the guest of honor at Chicon 2000. His illustrations have appeared in Dark Horse Comics, Random House ''Godzilla'' books, IDW’s ''Godzilla'' comic series and on covers for ''Famous Monsters of Filmland'' magazine. In film, he has worked as a concept artist on ''Sphere'' (1997), ''Jimmy Neutron Boy Genius'' (2001) and ''The Ant Bully'' (2006). He also illustrated matte paintings on the short film '' The Idol'' (2007) and was an extra in the Millennium ''Godzilla'' film ''Godzilla Against Mechagodzilla'' (2002). Style and subjects Eggleton's drawing and paintings cover a wide range of genre topics, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syd Mead
Sydney Jay Mead (July 18, 1933 – December 30, 2019) was an American industrial designer and neo-futurist concept artist, widely known for his designs for science-fiction films such as ''Blade Runner'', '' Aliens'' and ''Tron''. Mead has been described as "the artist who illustrates the future" and "one of the most influential concept artists and industrial designers of our time." Life Early life Mead was born on July 18, 1933, in Saint Paul, Minnesota. His father was a Baptist minister, who read him pulp magazines, such as ''Buck Rogers'' and '' Flash Gordon'', sparking his interest in science fiction. Mead was skilled in drawing at a young age. According to Mead, "by the time I was in high school I could draw the human figure, I could draw animals, and I had a sense of shading to show shape. I was really quite accomplished at that point with brush technique and so-forth." He described himself as being an "insular child." Mead graduated from high school in Colorado Springs, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don Dixon (artist)
Don Dixon (born 1951) is an American astronomical artist practicing space art in the tradition of Chesley Bonestell. Born in Easton, Pennsylvania, Dixon has created cover art for'' Scientific American'','' Sky and Telescope'','' Omni'', ''The Magazine of Fantasy & Science Fiction'','' Astronomy Magazine'', and many other publications. Dixon's paintings have been used to illustrate the covers of several science fiction books, such as the Mars Trilogy by Kim Stanley Robinson and the Galactic Center Saga by Gregory Benford. He directed and co-wrote the immersive animated film Centered in the Universe, which premiered in 2006 at the Samuel Oschin Planetarium at Griffith Observatory, where he served as Art Director from 1991-2021. He is a founding member of the International Association of Astronomical Artists (IAAA) and was elected a Fellow of that organization in 2000. See also *List of space artists References *"NASA Does it Better:Space Artists Face Reality" by Jia-Rui Chong, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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