Gravity is the OG of the forces of Nature. Historically it was the first to be discovered and described scientifically, yet it’s the most challenging to study. Even though gravity governs the orbits ...

The Unified Patent Court (UPC) recently issued its first decision, in case UPC_CFI_239/2023, addressing infringement by equivalence. The patent in suit (EP2137782) was determined not to be infringed ...

Among the first decisions to be made when initiating a composites testing program is the selection of test methods to follow. Unless performing highly customized testing, it’s usually not difficult to ...

One of the most counter-intuitive notions in physics is that all objects fall at the same rate, regardless of mass, aka the equivalence principle. This was memorably illustrated in 1971 by NASA Apollo ...

In a test of equivalence, a treatment mean and a reference mean are compared to each other. Equivalence is taken to be the alternative hypothesis, and the null hypothesis is nonequivalence. The power ...

Researchers present the most precise test yet of the weak equivalence principle, a key component of the theory of general relativity. The report describes the final results from the MICROSCOPE mission ...

At the heart of Einstein’s theory of gravity (general relativity) is the equivalence principle. The equivalence principle says that there is no difference between being stationary and subject to ...

Visit NAP.edu/10766 to get more information about this book, to buy it in print, or to download it as a free PDF. Descriptions of student or adult competency in a particular subject area, usually ...