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.
up vote 1 down vote. 2D cross products are more properly called 2d wedge products. Wedge products generalize to other dimensions, but cross products are always 3d wedge products. The usual operator symbol for a wedge product is ^ . You can use 2d wedge products to determine if one vector is to the left or the right of another one. If vector A is to the right of vector B, then, if A is to the left. If they are parallel or either of them is 0, then A ^ B = 0. In vector graphics, 2d wedge products can be used to analyze the intersection of 2 parametrized curves, e.g. for removing portions of one curve that lies to the right of another.