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.
, Engineer. There are really two definitions of robot, one is a machines that are able to sense and react to the environment in order to carry out a complex task autonomously. The other definition is a machine that does something a human might do. You could call an autonomous car a robot or robotic vehicle, because it is able to sense and react to the road and other road users, and autonomously carry out the complex task of driving safely.