As his mentor often reminded him, the revolution will not be televised, so prepare to act in the streets and not just in front of a screen.

In calculus class, we studied how to compute the volumes and surface areas of surfaces of revolution using integral methods.

In the calculus course, we studied how to compute the volumes of solids of revolution generated by rotating a region around an axis.

When advising young activists, she warned bluntly that a revolution is not a dinner party, so polite niceties and old rituals sometimes have to be set aside.

Historians debate the long-term effects of sexual revolutions on family structures and public policy.

Historians debate how technological innovations sparked several agricultural revolutions across different regions.

Historians often compare modern peaceful protests to the Velvet Revolutions that reshaped Central Europe.

Many commentators argue that the colour revolutions reshaped political expectations across the region.

Historians debated whether the waves of permanent revolutions shaped the modern state.

Historians argue that democratic revolutions often reshape national identities and political institutions.