ЖК-телевизор Saturn LED 42KF
Характеристики и обзор
| (link to movie)|
As I have, in the past, delved seep into the subject of ancient mythology, I have always found there is much to be desired. Nobody can seem to explain just WHY the planets were so important. And WHAT we knew about them.
These theories could explain a lot of the missing links in our ancient history.
Either way, it is the best explanation I have heard yet as to WHAT we saw in the ancient skies.
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Reupload of a previously uploaded film with improved sound and video.
"The theory of reaction engines and the application to the Saturn propulsion system." Includes film of the first Saturn I launch in 1961 (SA-1).
NASA f HQ-a77
I couldn't do much to improve the color on this one, but the sound cleaned up nicely.
Public domain film from NASA, slightly cropped to remove uneven edges, with the aspect ratio corrected, and 1-pass exposure & color correction applied (cannot be ideal in all scenes).
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
Rocket engine development history: V-2 engine led to Navaho engine led to Atlas engine led to Saturn H-1 engine.
...Development of the first stage rocket engine for the Navaho began with two refurbished V-2 engines in 1947. That same year, the phase II engine was designed, the XLR-41-NA-1, a simplified version of the V-2 engine made from American parts. The phase III engine, XLR-43-NA-1 (also called 75K), adopted a cylindrical combustion chamber with the experimental German impinging-stream injector plate. Engineers at North American were able to solve the combustion stability problem, which had prevented it being used in the V-2, and the engine was successfully tested at full power in 1951. The Phase IV engine, XLR-43-NA-3 (120K), replaced the poorly cooled heavy German engine wall with a brazed tubular ("spaghetti") construction, which was becoming the new standard method for regenerative cooling in American engines. A dual-engine version of this, XLR-71-NA-1 (240K), was used in the G-26 Navaho. With improved cooling, a more powerful kerosene-burning version was developed for the triple-engine XLR-83-NA-1 (405K), used in the G-38 Navaho. With all the elements of a modern engine (except a bell-shaped nozzle), this led to designs for the Atlas, Thor and Titan engines...
Rocketdyne's H-1 is a 205,000 lbf (910 kN) thrust liquid-propellant rocket engine burning LOX and RP-1. The H-1 was developed for use in the S-IB first stage of the Saturn I and Saturn IB rockets, where it was used in clusters of eight engines. After the Apollo program, surplus H-1 engines were rebranded and reworked as the Rocketdyne RS-27 engine with first usage on the Delta 2000 series in 1974...
The F-1 is a rocket engine developed by Rocketdyne and used in the Saturn V. Five F-1 engines were used in the S-IC first stage of each Saturn V, which served as the main launch vehicle in the Apollo program. The F-1 is still the most powerful single-chamber liquid-fueled rocket engine ever developed. The RD-170 has slightly more thrust, using a cluster of four smaller combustion chambers and nozzles...
The J-2 was a liquid-fuel cryogenic rocket engine used on NASA's Saturn IB and Saturn V launch vehicles. Built in the United States of America by Rocketdyne, the J-2 burned cryogenic liquid hydrogen & liquid oxygen propellants, with each engine producing 1,033.1 kN (232,250 lbf) of thrust in vacuum. Development of the engine began in the 1960s, with the first flight, AS-201, occurring on 26 February 1966. The J-2 underwent several minor upgrades over its operational history to improve the engine's performance, with two major upgrade programs, the de Laval nozzle-type J-2S and aerospike-type J-2T, being cancelled after the conclusion of the Apollo program.
Five J-2 engines were used on the Saturn V's S-II second stage, and one J-2 was used on the S-IVB upper stage used on both the Saturn IB and Saturn V. Proposals also existed to use various numbers of J-2 engines in the upper stages of an even larger rocket, the planned Nova. The J-2 was America's largest production liquid hydrogen fuelled rocket engine before the RS-25 Space Shuttle Main Engine, and a modernised version of the engine, the J-2X, is intended for use on the Earth Departure Stage of NASA's Space Shuttle replacement, the Space Launch System.
Unlike most liquid-fuelled rocket engines in service at the time, the J-2 was designed to be re-started once after shutdown when flown on the Saturn V. The first burn, lasting about two minutes, placed the Apollo spacecraft into a low Earth parking orbit. After the crew verified that the spacecraft was operating nominally, the J-2 was re-ignited for translunar injection, a 6.5 minute burn which accelerated the vehicle to a course for the Moon...
|Bermuda Saturn Solar Pump Kit available here: |
The Saturn solar pump kit is a solar powered pond pump with built in LED lights and battery facility. The panel, which must be in direct sunlight, will power the pump but if the light is strong enough it will also charge the batteries. This power can then be used at night or on cloudy days to power the pump and the 4 LED's. The LED's have a dusk till dawn sensor and will only come on when the natural light fades. This pump also includes a 2 hour auto shut-off feature, which preserves battery life when not required. The pump produces a maximum flowrate of 200 litre per hour which will power a 500mm high fountain. Supplied with a 1 year guarantee and four different fountain nozzles.
D med saturn LED - The polyvalent light. Variable lighting and excellent light quality:
A light for a wide variety of treatments.
Общая оценка Saturn LED 42KF на TV-sovet.ru: 4 из 5 на основании 50 голосов.
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