By measuring this angle, it was possible to measure the speed of the light. Foucault continually increased the accuracy of this method over the years. His final measurement in 1862 determined that light traveled at 299,796 Km/s.728 James Bradley: 301,000 Km/s. In 1728 James Bradley, an English physicist, estimated the speed of light in vacuum to be around 301,000 km/s. He used stellar aberration to calculate the speed of light.
Jupiterimages/Photos.com/Getty Images. Coniferous forests are biomes of conifers or evergreen trees. The boreal forest or taiga is the largest coniferous forest in the world, extending throughout the Northern Hemisphere from the tundra of Canada and Alaska into northern Asia and Europe. Coniferous forests consist of three layers of vegetation: the canopy, shrub and ground layers.
Larches are one example of a coniferous tree found in some of the coldest regions. Unusually for coniferous trees they are deciduous, that is they shed their leaves in winter. Coniferous trees such as cypresses, cedars and redwoods are found in warmer regions. Life on the forest floor.