资讯

So there are essentially two types of strings-- the heterotic string or "F" (for "fundamental") string, which physicists knew about prior to 1995, and the "D string," or one-dimensional brane.
Although the D-X2E Brazilian 12-String deviates from tradition in its use of HPL, and a little more aesthetic detailing wouldn’t go amiss, choices like these help keep costs low, while the overall ...
In 2022, D’Addario instituted World String Change Day to heighten interest in the program. The idea encourages consumers to try new strings and other accessories, often through deals. It will ...
Physicists from the University of Pennsylvania, working with colleagues at Arizona State University, are examining the ...