If you have any interest in astronomy – backyard hobbist or more serious scientist – you need to download this free eBook to your iBooks app on your iPad. (Requires an iPad using iBooks 2 or later and iOS 5 or later.) This is a huge book, almost 1GB, that’s chock full of informative text, [...]
{ 0 comments }
Yesterday, a large asteroid passed the Earth within the moon’s orbit. Asteroid 2005 YU55, roughly the size of a large jumbo jet, safely passed the Earth on its journey through space. The last time an asteroid of this sized passed the Earth was in 1976. According to NASA, the asteroid passed at some 201,700 miles [...]
{ 0 comments }
Man has been exploring space since the dawn of time. First by seeing pictures in the stars and making up stories of gods, then by using optics and physics to understand that Earth is not the center of the universe, and finally by venturing into space with manned and unmanned crafts. A wealth of information [...]
{ 0 comments }
Here’s another entry in my series of expensive, astronomy-related clocks. The Tellarium clock from Edmund’s Scientifics is made of cherrywood and brass. It has an 8-day wound movement and Westminster chime. Under the glass dome on top, a gear-driven earth orbits around the sun, taking a full year to complete the trip. A polished brass disk [...]
{ 1 comment }
We recently told you about the Astrodea astronomy watch. ThinkGeek offers another astronomy watch at a lower price-point. Enter the date and time on the planisphere dial to see a display of the night sky. The celestial display is accurate for 35-50 North latitudes. The watch has a brass face and a rubber and stainless steel band. The face [...]
{ 0 comments }
At least it’s a watch for the amateur astronomers! ThinkGeek offers the Astrodea Celestial watch for about $600. It’s pricey, but the face revolves to show a real-time display of the position of stars and the sun. The watch displays 1109 stars (brighter than +4.8 magnitude) and 169 galaxies. Sorry, but it’s only accurate if you are near [...]
{ 2 comments }
|
