A laser pointer is a small pen-like handheld device that uses a power source (usually batteries) and diode laser to produce a coherent beam of monochromatic light. Laser pointers are used mainly for highlighting a point of interest by using a strongly colored beam of light. Typical low-end ...
About LaserPointerSafety.com Site mapList of all pagesIf you are hit by a laser beam “It is common for people to see a bright flash of light and think that they are injured when they really are not. The ophthalmologist has to be somewhat leery of what caused the injury. Was it cause...
There is indeed a thread dedicated to 3D printed astronomy, but it is now 135 pages long, I would need a year to go through that... Your ability to print threads depends a great deal on the type of 3D printer and the materials being used. If you are focused on the find threads fou...
I grabbed my APM 100mm BTs which I keep permanently mounted and at the ready on a Velbon Geo N830 tripod (strong and lightweight); and atop an N12 head. These already had 6.5mm Morphs in place which is close to tops in my collection for binocular power. My target was the 7 Arrows...
Your life is organized like an orbit. I know. 了解了这点,就知道为何四年于相隔千里的我们,似乎只是弹指一挥间而已。 我其实了解小女儿的心理,是希望多一点surprise多一点romantic多一点傻里吧唧的指天划地的。可惜我这方面的才能似乎多用在0,1组成的无机世界里了,于是只能委屈她了。大多数的时间,她就一...
this would make sense as the 12mm has better edge correction at short f-ratio than the 16. I tried the three Leica spotting scope eyepieces as well, outstanding optics, I liked the Diascope a little better for astronomy. The Swarovski eyepieces are supposed to be excellent too, but it'...
I'm never going to get that college professor to be a true astronomy nerd but getting them to finally see what I see and why me and dog like to spend our nights out here was wonderful! You've reminded me that the moon is coming back into the picture again this cycle. We had a ...