-
Who designed the First Modern Seismograph?: A seismograph is a sensitive instrument that records the seismic waves or vibrations, caused by an earthquake...
[6/5/2009]
TAGS:
, , , , , , , ,
-
Who invented the Telephone?: In the 1870’s, two inventors Elisha Gray, and Alexander Graham Bell both independently designed devices...
[6/5/2009]
TAGS:
, , , , , ,
-
Who invented the Radio?: Radio owes its development to two other inventions—the telegraph, and the telephone...
[5/31/2009]
TAGS:
, , , , , , , , , ,
-
Who invented the Calculator?: William Seaward Burroughs invented the first practical adding and listing machine...
[5/31/2009]
TAGS:
, , , , , ,
-
Who invented the Transistor?: The transistor is an influential invention that changed the course of history for computers...
[5/31/2009]
TAGS:
, , , , , , , , , , , , ,
-
What are the different types of birthmarks, where do they occur, and how are they treated?: There are a number of common skin marks that are present at birth and are referred to collectively as "birthmarks...
[5/30/2009]
TAGS:
, , , , , , , , , , , , ,
-
Who invented the Gramophone?: Early attempts to design a music-playing gadget began in 1877 when Thomas Edison invented his tin-foil phonograph...
[5/29/2009]
TAGS:
, , , , , , , , , , , ,
-
Who invented the Quartz Clock?: In 1927, Canadian-born Warren Marrison, a telecommunications engineer, was searching for reliable...
[5/27/2009]
TAGS:
, , , , , , , ,
-
When did the accurate mechanical clocks appear?: The clock was invented part by part. In 1577, Jost Burgi invented the minute hand...
[5/24/2009]
TAGS:
, , , , , , , , , , , , , ,
-
How were water clocks used?: Water Clocks were among the earliest timekeepers that did not depend on the observation of celestial bodies...
[5/24/2009]
TAGS:
, , , , , , , , ,
|