RC, this sun telescope is awesome!
The Sun's got a lot going on, and the Meade Coronado Personal Solar Telescope will show you. By zeroing in on far end of the Sun's light spectrum - the hydrogen-alpha line at 656.3nm to be exact - the PST reveals a star rolling with violent, ever-changing activity. Best of all, the PST's innovative design allows H-alpha solar viewing for a breakthrough price.
With the PST you will witness sudden eruptions in the solar atmosphere called flares and the dramatic streamers known as prominences that shoot out from the Sun's edge. You'll see a solar disk mottled with granularity and dark, snaking filaments. Active regions containing migrating sunspots and bright, irregularly shaped plages add to the incredible detail.This compact 40mm f/10 refractor houses a special filter called an etalon, which transmits only the primary wavelength of light emitted by hydrogen (656.3nm) in the solar chromosphere, where the action is.A bandpass of less than 1.0 Angstorm allows the visibility of surface features and activity that get washed out in wider-bandpass "white light" solar filters. Internal blocking filters reject all unwanted and harmful radiation, for completely safe viewing.
The supplied 20mm (20x) Kellner telescope eyepiece (1.25") provides a full-disk view of the Sun through the permanent 90 degree diagonal prism. (Other 1.25mm eyepieces can be used for additional magnification options.) A focusing knob keeps the image sharp and a tuning collar allows the contrast to be adjusted on selected surface details. A clever Sun-finder window near the eyepiece provides a safe way to aim the telescope.
The telescope is just 15" long and weighs only 3 lbs., so it needs only a small telescope mount or a sturdy camera tripod for support. A 1/4" -20 mounting socket under the scope's rear housing provides the attachment point.
Didn't they say if you keep doing that, you'll go blind?
Maybe that was about something else...
In my life various authorities including doctors, schoolteachers, books, the media and the government have spoken against as bad for us:
having heterosexual sex
taking hallucinogenic mushrooms
We now know that all these things are good for you, improve health, cure cancer, alleviate depression, and/or make you live longer.
Perhaps smoking tobacco will be found to be good for you as well.
The authorities now promote that gay sex and/or being transexual is good for you. However we know that both these things are associated with higher risk of deadly diseases, depression and suicide.
>Perhaps smoking tobacco will be found to be good for you as well
The benefits of nicotine are clear.
The main danger from smoking tobacco is ingesting particles of radioactive polonium into your lungs from the fertiliser used on the plant.
Many people now use nicotine taken orally as a nootropic to augment brain function.
Yes, I was joking.
I strongly suspect smoking would not be terrible for you, except that the cigarette industry is more interested in keeping you hooked and making profits than in keeping you safe.
Thus, the tobacco is treated with harsh chemicals to remove the nicotine into a 'soup'. The now flavorless tobacco is shredded into small fragments. The 'soup' is condensed, with its nicotine increased, then sprayed back onto the shredded tobacco. This concoction in then wrapped in paper. This approach lets the cigarette company closely control the nicotine content of their product.
The addition through this process of various carcinogens is what makes cigarettes deadly. I strongly suspect the "vaporette" liquids also contain carcinogens, but time will tell.
>The addition through this process
This is incorrect
The danger is from the polonium on the surface of the tobacco plant.
Tobacco plants are hairy and retain the dust from fertiliser.
If the tobacco companies wanted to, they could thoroughly wash the plants as part of their processing, but that would be an admission of knowledge and expose them to law suits.
Or they could use fertiliser that didn't contain polonium.