arabera Esther Johnson 8 years ago
1976
Honelako gehiago
Carolina Sazo‑k egina
Kathryn Sipe‑k egina
Iratxe Orokieta‑k egina
Colin Robertson‑k egina
More lines = stronger field
Never Cross
Move from Positive to Negative
k=8.99x109 Nm2/C2