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.
  A robot can do whatever you make him to do. That is the purpose of competitions like LEGO First and Lawrence Tech's RoboFest (www.robofest.org). These competitions allow â¦ students to discovery the many capabilities of computer controlled mechanial mechanisms.The possibilities are limitless, the vision is yours.. Decide what you want your robot to do. 2. Make an initial design on paper. 3. Break down the design into components based on their functionality. 4. Make an initial d â¦ esign of the components on paper.