Wednesday 10 February 2016

Sciencefacts

Scientific names:

1.Tomato                               -                  
  Solanum lycopersicum
2.Potato                                 -                    Solanum tuberosum
3.Carrot                                 -                     Daucus carota subsp. 
4.Beet root                             -                      Beta vulgaris  
5. Gooseberry                        -                      Phyllanthus emblica   
6. Apple                                 -                       Malus domestica
7.Owl                                     -                       Strigiformes
8. Crow                                                        Corvus
9.Swan                                  -                         Cygnus
10. Quail                                -                         Coturnix coturnix        
11. Duck                                -                        Anas platyrhynchos        
12.Pigeon                               -                        Columba livia domestica
13.Peacock                          -                         Pavo cristatus
14.Cuckoo                            -                        Cuculidae
Psittaciformes






Invention that have changed the world:

Plow:

              A simple cutting tool used to carve a channel into the soil. Churning it up to bring out nutrients and prepare it for planting. Planting and growing food added stability to the life of humans who were subsistence farmers, hunters and gathers. Farming was done by hands it took a long time and was laborious. The plow changed all that. It is considered responsible for the creation of human civilization.

Wheel:

                   Another invention that roughly that dates back to 3100 BC. It has revolutionized the way early human beings travelled and transported goods from one place to another. The wheel was also used for domestic purposes such as irrigation milling and pottery making etc. A huge amount of modern technology still depends on wheels like centrifuges used in chemistry, in medical research, electric motors and  combustion engines, jet engines, power plants and countless other.

Printing press:

                  One of the most influential inventions, ushering in the period of modernity. It  was introduced by Johannes Gutenberg, around in  1430. Gutenberg also developed metal printing blocks that were easy and durable. Ultimately, the technological advancement in ink and paper production helped reveolutionize the  process of mass printing thus enabling  enormous quantities of information to be spread  throughout the world.

Refrigeration:

                                    William cullen at the university of  Glasgow demonstrated the first artificial refrigeration system in the year 1748. However he never used his discovery for practical purposes. In the year 1805, US inventor Olivar Evans, designed the first refrigeration machine that used vapor instead of liquid for cooling purpose. However, the concept was gradually improved over the decades to make the refrigerators become the norm of life.

 Communication:

                        The invention of telegraph led to the invention of long distance communication- the telephone. The concept of transmitting signals wirelessly through electromagnetic waves was popularized by Marconi and Nikola Tesla in the early 20th century. Radio and television were used to send messages to millions of recipients through a single broadcaster. Now we even watch events occuring on the other side of the world as they happen. The communication technology has effectively shrunk the world!

Steam Engine:

                                   In early days over 2000 years ago, boiling water or water wheels were used produce mechanical motion. However the devices were not practical as they had their own limitation. The greatest change in human civilization was carried  forward by the invention of steam engine. In  1769, James watt modified and increased the power of steam engine to make it work in a more practical way. Most power plants in the world still use steam turbines to generate electricity.

Automobile:


                       Nicolas Joseph cugnot is widely  credited with building the first full-scale self-propelled mechanical automobile around 1769. But it was  Karl Benz who is acknowledged as the inventor of the modern automobile. His first motor wagen was built in 1855. The invention  has led to vast economic growth worldwide. If the steam engine mobilized industry the auto mobile mobilized people. 

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