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The FOR THE 21ST TRANSPORTATION of CENTURY <br><br>1.Experts Estimate That in the 21st century <br> we will of! Go by rocket from the New York to of Tokyo in 30 minutes. We will be able to reach any point on the globe from any other point through tunnels deep in the earth. The prospect is adventurous and exciting. <br><br>It's possible that within the next two or three decades we will be riding in remote-controlled electronic cars. <br><br><br><br>4.Of tremendous importance is the creation of new materials. Chemists engaged in polymer research have produced the world's best synthetic materials.<br><br>Metallurgists studying a new class of aluminium alloys have produced a very durable alloy which is being used in aircraft and rocket engineering. The alloy helps reduce the weight of apparatus substantially, thereby effecting a considerable saving of materials. <br><br>Plastics are employed in a number of aircraft engine applications and have successfully displaced metals in jet turbine impellers where the high fatigue resistance of the material is of great importance. <br>At present a great deal of research and development is being carried out to produce special grades of plastics for space vehicles.
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