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.
The field of computer science and engineering concerned with creating robots, devices that can move and react to sensory input. Robotics is one branch of artificial intelligence.Robots are now widely used in factories to perform high-precision jobs such as welding and riveting.They are also used in special situations that would be dangerous for humans -- for example, in cleaning toxic wastes or defusing bombs.obotics is one branch of artificial intelligence. Robots are now widely used in factories to perform high-precision jobs such as welding and riveting. They are also used in special situations that would be dangerous for humans -- for example, in cleaning toxic wastes or defusing bombs.