Apple Computational Physics

If this falls over then you're trying to do something that defies physics.

It’s like you’re there. The physics are amazing. The game play is fun.

This cpu is well-known for its unsurpassed computational power, multi-threaded core count, and remarkable energy efficiency. Many thanks to B&H for making this available at MSRP without markup despite ongoing widespread shortages in semiconductors and in the Ryzen 9 Zen-3 cpu's in particular!

[This review was collected as part of a promotion.] It is very lightweight (under 3 lbs) so easy to carry on flights, but still has the computational power I need.

Perfect. Now my new Dell desktop computer is supped up to do the heavy duty computational work that is needed.

A lot cheaper than a cw for an Astro Physics mount. It has a nice finish on it.

For me is simple physics....... I use it around the bottom part of my Canon 70-200 2.8L to make the cosmetic look even better!!

Fantastic and simple product for supporting Projectors. Used for over 90 chemistry and Physics classrooms at Military Academy. Safety Factor for projector support is 10x. Support up to 500 lbs. Cadets could hang from this support. As easy as screwing in a light bulb. Twist right into mount.

I use this on Takahashi telescope, Celestron telescope, Newtonian mirrors, Astro-Physics diagonal, OMI mirror, Pentax and Zeiss Abbee Orthoscopic eyepieces. It is recommended by Astro-Physics on their high end refractors. A bit pricey but a bottle lasts a couple of years. Does not absorb moisture out of the air which can lead to streaking in humid environments (with alcohol or acetone). Does not dissolve paint or plastic. I find it much better than the standard mix of soapy water and alcohol. I use it with kimwipes and a Giotto air blower.

So far so good. I'm using this with a heavy camera (Panasonic DVX200). I had trouble at first because I was mounting this slider on top of a video head (and then another video head, Manfrotto 502, between the slider and the camera). The torque caused by this heavy load extended so far off-center was too much for the bottom head to handle. This caused a bowing effect, where the slider would droop at each extreme. I then got a half ball attachment for my tripod (Manfrotto 520BALL on a Manfrotto 546B tripod), and that improved things dramatically! That said, with such a heavy load on the slider, there is still a slight bowing when I move the camera rig to the far extremes. The slider handles the weight, but physics is physics. I doubt any center-supported slider can handle that much weight almost 15 away from the center without some degree of flexing. Still, if I apply a little upward support at the end of the slider as my camera approaches it, I can get very nice results. If your camera is lighter and you use a lighter (or no) head on top of the slider, you may not need any extra support for a nicely level camera movement. Please be realistic about the physics involved here. This slider allows you to move the camera a significant distance off center. This can cause the tripod to tip or flex no matter how solid the slider itself is. If you have a heavy camera, the slider does a very good job, but you still may need to take precautions and possibly counter-balance the rig. You will need a very sturdy tripod if you're using a heavy rig! I considered buying the Edelkrone slider, which works similar to this one. I have not compared them side-by-side, but the ES50 seems to give all the same benefits at a much lower price. I'd love to hear experiences others have had with the Edelkrone using a heavy (10+ lbs) camera rig extended 15 off center (29 total slide). Any drooping at the extremes? It's pretty minor with the ES50, but does exist.