which they demonstrated in 2D/3D perovskite solar cells. A n-i-p champion perovskite solar cell had a power conversion efficiency of 25.9%, retaining 91% of the initial performance after 1,074 ...

as they held on to win a Region 3D quarterfinal over William Byrd, 11-5. Honaker continued its dominant run on the pitch, scoring a late tally to lift them past Patrick Henry in the Region 1D boys ...

Mission 13 departs from Antioch Baptist Church in Johnson City, Friday June 6 at 8 a.m. They return on Sunday at 5 pm. Everyone is encouraged to come out with their patriotic colors, flags and ...

Shapes with 4 sides Explore four-sided shapes looking at straight lines, curved lines and 2D shapes. What are 2D shapes? Explore the properties of 2D shapes from one-sided circles to the eight ...

Jackson Bonneville, 22, is making a baseball comeback after an illness ended his college career. A Banana Ball tryout may be in reach this October.

But in reality, there was obstruction called. "I was trying to do the math and I didn't know how the third-base umpire (Nic Lentz) could be watching a fair-foul ball and then the throw get off and ...