How do you appreciate the efforts of scientists In discovering elements?

How do you appreciate the efforts of scientists in inventing microscope?

How do you appreciate the uses of cattle?

How do you appreciate the Planck?

How do you appreciate the efforts of human beings to discover an alternate energy sources to coal and petroleum for their daily use?

How do you appreciate the "Eye Donor" ?

How do you appreciate the Plaster of Paris?

How do you appreciate the scientists Aufbau and Hund?

How can you appreciate the effort of scientists in classifying a wide range of organisms?

How would you appreciate the efforts of Karl Landsteiner in discovering blood groups?

How do you appreciate the process of oxidation?