[DOC] [TLE] Magdeburg hemispheres - Wikipedia [PAR] The Magdeburg hemispheres are a pair of large copper hemispheres, with 
mating rims. They were used to demonstrate the power of atmospheric pressure. 
When the rims were sealed with grease and the air was pumped out, the sphere 
contained a vacuum and could not be pulled apart by teams of horses. ... In 1656 
he repeated the demonstration with sixteen horses (two teams of... [DOC] [TLE] Physics demonstrations: Magdeburg hemispheres | Skulls in the Stars [PAR] May 8, 2012 ... Guericke first demonstrated this force in 1654 for the Emperor Ferdinand III. Thirty 
horses, in two teams of 15, were unable to pull apart the evacuated hemispheres! 
... Guericke's hemispheres had a radius of about 25 cm; if he had almost .... a 
near-perfect vacuum could be achieved inside the spheres)  i.e.... [DOC] [TLE] The Magdeburg Hemispheres | Make: [PAR] Dec 18, 2012 ... In the spring of 1654, German scientist Otto von Guericke staged a dramatic 
demonstration of his new invention, the vacuum pump. ... Two teams of 15 horses 
would try to pull apart two 20"-diameter metal hemispheres. ... Instead, the air 
inside the sphere had been evacuated by means of von Guericke's... [DOC] [TLE] Full text of "Heirloom Technology" - Internet Archive [PAR] ... the spring of 1654, German scientist Otto von Guericke staged a dramatic 
demonstration ... Instead, the air inside the sphere had been evacuated by 
means of von ... to pull the halves apart is 314in2 x (14.7-1) Ibf/in2 = 4,300 
pounds of force. ... Guericke's famous demonstration of a vacuum  two teams of 
horses could not... [DOC] [TLE] Magdeburg hemispheres - Hmolpedia [PAR] Diagram of the Magdeburg hemispheres showing an internal vacuum about ... or 
near "perfect vacuum" inside of the sealed sphere, which have a operational ... 
Supposedly, legend has it that the first show appeared in 1654 in Regensburg. ... 
the actual first appearance of the horse pulling show occurred in Magdeburg in... [DOC] [TLE] 91601 A New Magdeburg Sphere-Rev - Flinn Scientific [PAR] Use this dramatic demonstration to illustrate the force of atmospheric pressure, ... 
Obtain two Magdeburg hemispheres or large suction cups. ... to try to pull the 
Magdeburg hemispheres apart by placing a few dollars inside the ... Atmospheric 
pressure has ... 1654, Guericke performed a famous experiment in front of 
Emperor... [DOC] [TLE] December 22, 2008 [PAR] ... to a doctor who was doing this at the time golfing In 1654 a famous 
demonstration had 2 horses trying to pull apart halves of a sphere with this inside 
it vacuum... [DOC] [TLE] K-12 Science Activites | California State University, Los Angeles [PAR] It is quite difficult to pull them apart as long as you pull in a straight line. This is a 
simple example of the famous Magdeburg experiment carried out in 1654. ... 16 
horses (two teams of eight) to pull apart two iron hemispheres which had been 
placed .... w) Put a balloon inside a glass flask or jar and try to blow up the 
balloon. [DOC] [TLE] Barometer World News [PAR] It seems the E.A. think a barometer with a thermometer on it are 2 different .... 
barometers that we were famous for making) has been banned from October 
2009 - (more ... As a business he tries to incorporate his personal approach to 
energy use, ..... 16 cart horses to try to pull apart a sphere made of two metal 
hemispheres,... [DOC] [TLE] Partners and Rivals During the Scientific Revolution - Fairfield [PAR] Conor Reilly, S.J. has collected the TRS references to works of these Jesuits and 
their .... George Ohm was liked as a teacher and two of his students were the 
famous .... so he went to work trying to evacuate the air from a well-caulked beer 
keg. ... requiring 16 horses to pull apart a pair of 22 inch evacuated hemispheres 
in... [DOC] [TLE] History of Science 2013: January 2013 [PAR] Jan 1, 2013 ... His business partner Matthew Boulton had heard about one of his inventions ..... 
into a family of drug merchants in Switzerland between 1654 and 1705.

Question: In 1654 a famous demonstration had 2 horses trying to pull apart halves of a sphere with this inside it
Answer: a vacuum