Showing posts with label increase. Show all posts
Showing posts with label increase. Show all posts

Wednesday, June 5, 2019

Singularity Observatory Coating & Aperture Size

Source
Singularity Observatory
Can Big Coatings
Increase Telescope Size?
by Humanoido

The idea is to have your telescope lenses and mirrors coated to increase light transmission and reflectivity to gain the equivalent performance to that of a much larger scope without the coatings.

They say you need to eyeball the situation rather than just trust the numbers, because there are many variables.

So I set out to countless star parties to compare as many telescopes as possible. Apples to apples and oranges to oranges, for consistent testing. First up was my 12.25" Newtonian with a coated mirror giving performance on light gathering with deep sky objects and it was the same as a 16" without the coatings. Similar tests showed the 14" comparable to the 18", an 8-inch compared to a 12-inch, and the 9.25" compared to approximately a 13-inch. There are still many 13-inch scopes around made from Coulter Optics from some years ago, for comparison. The 4.25" was like an 8-inch. Other scopes with coatings were consistently of larger diameter in performance, in terms of light gathering power, compared to plain scopes. Of course this test is entirely subjective, qualitative and may vary from user to user.

Optics
Enhanced VS Plain
4.25" - 8"
6" - 10"
8" - 12"
9.25" - 13
12.25 - 16"
14" - 18"

Remember that all optical surfaces need coatings. SCT correctors have a front and back, and often have extra lenses located internally near the visual back in EdgeHD versions. Eyepieces may have 7 optical sets that all need coating. These lenses also have two sides. The coating on a mirror should be a dialectric coating of proper thickness to generate constructive interference of light waves. For a glass lens, the maximum transmission is important while minimizing reflections. Glass lenses also have multiple surfaces to be considered. Therefore telescope testing may vary depending on a wide variety of other corrector lens and oculars. Some optical companies will offer objective mirrors with coated silver for the highest reflectivity but at a significantly higher cost. The extra cost of coatings can be well worth the extra performance indicative of larger diameter aperture size. In the case of Newtonian reflectors, it's important to coat both the primary mirror and the secondary diagonal as well, and inclusive of the ocular elements. Some FRs are uncoated and eyepieces too, so choose accessories wisely. In one example, an ocular was only half coated so double check your optics when testing.

Sunday, November 18, 2018

Space1 Living by the Space Stick

How a Stick can Enable Life into the Future of Space
Want to live to see those fantastic promises made by the space program? Want to live farther into the future? Interested in seeing settlers and colonization of Mars? A journey to the stars?

Everyone lives with their own stick of life, some just born are at their beginning of the stick and some with fewer days to live are at the short end of the stick. Our position on the stick of life is determined by many things such as our chronological age, physical age, sickness or degree of health, genes and longevity, accident, and good living or poor living abuse indulgences to name a few.

Once the short end of the stick is reached, all hope is not lost - there are ways to gain more stick but it takes some luck and maybe some technology. Now new evidence, science and technology, are offering ways to increase our time of life. For example, if the human body has a failing or failed component, surgery may be an option to replace the failed organ with a machine cyborg version to gain additional years of life, thus making the stick longer. Sometimes this is a significant gain. But this is a gamble - sometime surgery itself can be too much and result in a clot, stroke, heart failure, or the human body giving up, and thus the stick will end, ultimately causing death.

Another technique is to use a machine to extend life through a technique known and Enhanced External Cardiopulsation. This increases circulation in the human body to a point where some have reported sensory enhancements strong enough to be labeled super power.

The advantage of extending one's stick of time into the future is gaining a personal witness to modern technology and perhaps spectacular new achievements of mankind - for example, witnessing humanity becoming a multiplanetary species, trips to the Moon, Motels in space, outposts and settlers on Mars, Solar System stations on various moons, mining of the asteroids, and trips to the stars.

Sunday, December 31, 2017

Space1 Opening the Door to Space

The S1 experimental fuel tank for study, research, and design is so large it more than fills the camera's field of view. Large singular rocket fuel tanks will provide the largest propulsion containment to date and enable the largest and most powerful rockets ever conceived since the advent of the program.

Space1 initiated a rocket study that involved cross hybrid rockets and rocket parts such as fuel delivery valves. What came out of this study is a major way to make Space1 rockets 300% larger without staging or clustering.

The rocket study suggests the design and use of the most massive single engine ever invented in the scientific realm of S1.


This means the rocket can carry more fuel, travel farther, is more safe and reliable with less components, and has the ability to offer greater fuel valve control and can achieve its goals with few or no moving parts.

In the new missions, the rocket starts out fat and slow upon launch but as fuel is eaten up, rapid acceleration begins and finally it's moving along at the highest speeds Space1 has ever achieved!


This opens another new door to space. This means the entire rocket can be reused from launch to recovery many times and will greatly reduce the cost of tourism per tour, competing with all other forms of space travel.