Loess: A deposit composed primarily of homogeneous, nonstratified, wind-blown silt. Milankovitch: Milutin Milankovitch (1879–1958), a Serbian mathematician who proposed that climatic changes ...

Without ice, a polar bear is not able to capture a seal. Astronomer Milutin Milankovitch developed the mathematical formulas upon which these orbital variations are based. He hypothesized that ...