All Toothed Whales have at least one dorsal fin. Both of these types of whales were once widely hunted for a variety of reasons. The Baleen Whales seemed to be hunted on a larger scale. First, they were less dangerous so the risk involved was reduced.Second, their oils were used for cooking, to make clothing, and for other resources.ll Toothed Whales have at least one dorsal fin. Both of these types of whales were once widely hunted for a variety of reasons. The Baleen Whales seemed to be hunted on a larger scale. First, they were less dangerous so the risk involved was reduced.
We need robots to help humanity bear the challenges of today and tomorrow As we have seen in the previous two part of this series, robots will help us cope with the demography burden all countries will face after they complete their demographic transition.
ROBOTS: IN THE BEGINNING. Robots are machines that supplement or enhance human activities. They can do this in a number of ways: I. The Pre-History of Robots. People have been fascinated with artificial beings for thousands of years. The ancient Hebrews wrote about a person made out of dirt and clay called a golem. The golem was created to help with menial labor.