资讯

Discover how part orientation affects strength, finish, and efficiency in 3D printing. Learn optimization techniques that ...
In photographic catadioptric lenses, the secondary mirror – which has a convex surface – also serves to increase the focal length by ... or trying to use the effect more creatively. A great example of ...
Mirror lenses have enjoyed various brief bursts of popularity particularly during the 1970s and ’80s, but they’ve never really caught on, perhaps because their design does involve some compromises.
\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.
The hosts were the better side when both sides met last time. LOSC Lille are all set to host RC Lens in match week 27 of the Ligue 1 2024-25 season. The hosts are in sixth place and will be looking to ...
Gerry Wright, a biochemist at McMaster University who led the research, says lariocidin was found in a bacteria called Paenibacillus that was “cultivated from a soil sample that we obtained here ...
This repository is a collection of reference implementations for the Model Context Protocol (MCP), as well as references to community built servers and additional resources. The servers in this ...
A single-element plano-convex lens is placed above each sample, so that collimated light is projected to a 100 mm focal length parabolic reflector, which then creates an image on the detector. The ...