资讯

Here we describe principles to guide the folding of highly knotted single-chain DNA nanostructures as demonstrated on a nano-sized square pyramid. Folding of knots is encoded by the arrangement of ...
"The square pyramid is a structurally rational shape, and the roofless form is also considered for the workability of the concrete." "The closed structure is also chosen because the surrounding ...
"In other words, the Great Pyramid is a concave octagonal pyramid, rather than the standard square pyramid," he added. This intriguing characteristic of the Great Pyramid has fascinated experts ...
From an airport above Westminster to a pyramid in Trafalgar Square, these pictures show what London could have looked like if bizarre design plans had been given the green light. Over the years ...
The new owner of Writer Square plans to rejuvenate the downtown development with an ambitious plan that calls for a glass pyramid with restaurant or retail space below street level. Developer Gary ...