Connaissance 2K14

08/03/2019

Current Affairs in Telugu January and February Part 2 by Jayadev Sir

Current Affairs in Telugu January and February Part 2 by Jayadev Sir | RRB NTPC 2019. Telugu Current Affairs, Current Affairs in Telugu, Daily Current Affair...

06/03/2019

RRB NTPC 2019 Current Affairs in Telugu January and February by Jayadev Sir

RRB NTPC 2019 Current Affairs in Telugu January and February by Jayadev Sir Download A Plus Topper Coaching Class Room Training Program Feedback: https://dri...

05/03/2019

RRB NTPC 2019 General Awareness Syllabus Analysis in Telugu by Jayadev Sir

RRB NTPC 2019 General Awareness Syllabus Analysis in Telugu by Jayadev Sir, M.Sc., B.Ed. ...

04/03/2019

RRB NTPC 2019 Syllabus CBT -1 and CBT - 2 Complete Analysis in Telugu by Sundar sir and Jayadev Sir

RRB NTPC 2019 Syllabus CBT -1 and CBT - 2 Complete Analysis by Sundar sir and Jayadev Sir. Subscribe to APlus Topper YouTube Channel; https://www.youtube.com...

10/02/2019

Over 1.2Lkh Posts in Railways. SSC / RRB Twin Batch.
Batch Starts From 18-02-2019

15/03/2016

Connaissance-JNTUH

CONNAISSANCE Connaissance - The Annual Tech fest of Mechanical Engineering Department of JNTUH-CEH is back and this time all the more bigger and better. Connaissance- 2016 will be held from 18-03-2016

18/01/2016

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18/01/2016

The lathe is an ancient tool, dating at least to ancient Egypt and known to be used in Assyria and ancient Greece. The lathe was very important to the Industrial Revolution.

The origin of turning dates to around 1300 BCE when the Ancient Egyptians first developed a two-person lathe. One person would turn the wood work piece with a rope while the other used a sharp tool to cut shapes in the wood. Ancient Rome improved the Egyptian design with the addition of a turning bow. In the Middle Ages a pedal replaced hand-operated turning, allowing a single person to rotate the piece while working with both hands. The pedal was usually connected to a pole, often a straight-grained sapling. The system today is called the "spring pole" lathe. Spring pole lathes were in common use into the early 20th century.

Exact drawing made with camera obscura of horizontal boring machine by Jan Verbruggen in Woolwich Royal Brass Foundry approx 1778 (drawing 47 out of set of 50 drawings)
An important early lathe in the UK was the horizontal boring machine that was installed in 1772 in the Royal Arsenal in Woolwich.

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15/01/2016

Wishing that this festival brings good luck and prosperity and hoping that it is joyous, and fills your days ahead with happiness. Have a wonderful Pongal! :D