In order to work with gradients and straight lines successfully, a good understanding of coordinates and linear graphs is needed. The gradient of a line is calculated by dividing the difference in ...

The ombré nail look involves blending two or more colours to create a gradient effect. There are different ways to play with the design; for example you could create a horizontal gradient instead ...

The gradients have higher densities toward the ... The tube on the left contains a single horizontal band of DNA, indicating that it has DNA of one density. The tube on the right has two ...