sperm capacitation. acquisition of the capacity to penetrate an ovum, not present at the time of delivery of the spermatozoon, and which requires a period of incubation in the female tract. It involves increased metabolic activity and motility and the removal of a chemical decapacitation factor from the spermatozoon.
Exhibition marks 40 years of Rubik's Cube. 3. Solve the white corners. With the white cross on the top face, you must then solve the white corner pieces. Corner pieces will have one white side plus two other colours. 4. Solve the middle layer, so the bottom two layers of your cube match in colour.5. Solve the top layer. The first stage of this step is to try and get a yellow cross on the top face of your cube. Next, you should try and get all the yellow on the top face. 6. Position the yellow corners correctly.xhibition marks 40 years of Rubik's Cube. 3. Solve the white corners. With the white cross on the top face, you must then solve the white corner pieces. Corner pieces will have one white side plus two other colours. 4. Solve the middle layer, so the bottom two layers of your cube match in colour.
Cross Product. We covered the scalar dot product of two vectors in the last lecture and now move on to the second vector product that can be performed, the Cross Product. The Cross Product involves taking two vectors and getting as a result another vector which is perpindicular to both vectors. We use the formula below. The direction of n follows the right hand rule, which is easy to learn. Tkae the picture below. Point your thumb in the direction of A, the first vector in the cross product. Now point your fingers in the direction of B. Your palm will face in the direction of n, out of the screen. By this method we can do the Cross Products of i, j, and k.