Search by term, person or webpage number

friction was so large that the weights went down very slowly, actu- ally they were slower than a piece of paper was falling. Winding them up again however was hard work, way too tough for James who had

File type

application/zip

Referenced at

• The hard work of experimenting James Prescott Joule, William Thomson, and the mechanical equivalent of heat.

friction was so large that the weights went down very slowly, actu- ally they were slower than a piece of paper was falling. Winding them up again however was hard work, way too tough for James who had

File type

application/pdf

Referenced at

• The hard work of experimenting James Prescott Joule, William Thomson, and the mechanical equivalent of heat.

three individual pieces, one large main piece in the center, and two identical narrow edge pieces. They were assembled with a variation of a tenon and mortise joint as well: the main piece 1 Pulley simply [...] materials in the piece. The knots, which attach the strings in several places, are delicately executed. The lines where wooden pieces connect, for example the main piece and edge pieces of the ground plate [...] elongated stub mortise along each edge piece.3 Two feet are attached to the bottom of the edge piece on the side of the tall columns and one foot is attached to the edge piece on the other side. No mechanism

File type

application/pdf

Referenced at

• Material Culture

initially occupied, the initial piece has to be divided into more than 750.000.000 parts – these calculations were intended to show how small the particles have to be that form the piece of incense (see Beer & [...] Cumberland, England. He was born to an impoverished family. His father was a weaver and owned a small piece of land. Despite their poor financial situation, John received a good gen- eral education. However [...] is especially worth mentioning: One day Dalton decided to visit his mother and gave her a colorful piece of fabric as a gift. He was surprised when his mother said that the fabric was red, because he thought

File type

application/zip

Referenced at

• Lavoisier and the conservation of mass

calcified metal (“calx”, usually weighed in powdered form) had a greater weight than the origi- nal piece of metal. Lavoisier also found that the process could be reversed, that is, when the calx was reduced

File type

application/zip

Referenced at

• Antoine Laurent de Lavoisier and respiration

calcified metal (“calx”, usually weighed in powdered form) had a greater weight than the origi- nal piece of metal. Lavoisier also found that the process could be reversed, that is, when the calx was reduced

File type

application/zip

Referenced at

• Liebig and nutrition

calcified metal (“calx”, usually weighed in powdered form) had a greater weight than the origi- nal piece of metal. Lavoisier also found that the process could be reversed, that is, when the calx was reduced

File type

application/zip

Referenced at

• Lind and scurvy

possibility of substituting a simple astronomical eyepiece with two lenses to the terrestrial eye- piece commonly used further reduces the length, which is definitively reduced to about a quarter, approximately [...] is currently preserved? Fortunately, a few clues are known and can therefore be used to write some pieces of the biography of our object. In 1894, Hofmann’s distance estimator was listed in the inventory [...] are not dirty, but at the same time, the device does not appear to have been polished, as the eye- piece tube appears oxidized. It does not seem, therefore, that the object has been cleaned, but rather gives

File type

application/pdf

Referenced at

• Material Culture

caterpillars, butterflies, spiders, and other creatures are reproduced beautifully and accurately. Each piece contained 12 plates in quarto format. In 1678 Maria gave birth to a second daughter, Dorothea Maria

File type

application/pdf

Referenced at

• Sybilla Merian and Cocoons

precious metals, jewels, pearls, etc. had been collected; pieces that have a value besides their processed form. However, since the Re- naissance pieces of art, stuffed animals, ma- chines, dried plants, optical [...] caterpillars, butterflies, spiders, and other creatures are reproduced beautifully and accurately. Each piece contained 12 plates in quarto format. In 1678 Maria gave birth to a second daughter, Dorothea Maria [...] not least of religious reason. One assumed to recognize the principles of creation in every single piece of it. This could be expressed with the term of the Macrocosm in the Microcosm (Macrocosmos in Microcosmo)

File type

application/zip

Referenced at

• Sybilla Merian and Cocoons