21 JUN 2014 by ideonexus
800 Lifespans Bridge 50,000 Years
Eight hundred life spans can bridge more than 50,000 years. But of these 800 people, 650 spent then lives in caves or worse; only the last 70 had any truly effective means of communicating with one another, only the last 6 ever saw a printed word or had any real means of measuring heat or cold, only the last 4 could measure time with any precision; only the last 2 used an electric motor; and the vast majority of the items that make up our material world were developed within the lifespan of t...
1 13 MAR 2014 by ideonexus
Giordano Bruno Observations of the Sun
The meaning is the more excellence, as it is the less vulgar, and you will see that it is single, unified, and not strained. You must consider that although the sun appears different with respect to different regions of the earth according to time and place, nevertheless with respect to the entire globe it acts always and everywhere in the same way, for in whatever point of the ecliptic it may find itself, it causes winter, summer, autumn, and spring, and the entire earthly globe receives the... 1 
notes
notes...and it's effects on the Earth.
07 OCT 2013 by ideonexus
Heat is a Substance
We recognize in the concept of heat which appears
here a similarity to other physical concepts. Heat is,
according to our view, a substance, such as mass in
mechanics. Its quantity may change or not, like money
put aside in a safe or spent. The amount of money in a
safe will remain unchanged so long as the safe remains
locked, and so will the amounts of mass and heat in an
isolated body. The ideal thermos flask is analogous to
such a safe. Furthermore, just as the mass of an iso-
lat...Folksonomies: heat quantification
Folksonomies: heat quantification
1 notes
notesLike mass. It is a quantity.
07 OCT 2013 by ideonexus
Understanding Heat and Temperature
Our sense of touch tells us quite definitely that one
body is hot and another cold. But this is a purely quali-
tative criterion, not sufficient for a quantitative descrip-
tion and sometimes even ambiguous. This is shown by
a well-known experiment: we have three vessels con-
taining, respectively, cold, warm and hot water. If we
dip one hand into the cold water and the other into the
hot, we receive a message from the first that it is cold
and from the second that it is hot. If we th... 1 notes
notesAn excellent description of the distinction between the two.
23 JUN 2013 by ideonexus
An Elegant Complex Description of Fire
The atoms like each other to different degrees. Oxygen, for instance in the air, would like to be next to carbon, and if they get near to each other, they snap together. If they’re not too close though, they repel and they go apart, so they don’t know that they could snap together. It’s just as if you had a ball, it was trying to climb a hill and there was a hole it could go into, like a volcano hole, a deep one. It’s rolling along, it doesn’t go down in the deep hole, because if it...From Richard Feynman, making the process of burning wood seem wondrous.
24 MAY 2013 by ideonexus
No Such Thing as Professional Photographers
...there’s no such thing as Flickr Pro, because today, with cameras as pervasive as they are, there is no such thing really as professional photographers, when there’s everything is professional photographers. Certainly there is varying levels of skills, but we didn’t want to have a Flickr Pro anymore, we wanted everyone to have professional quality photos, space, and sharing.
1 The Yahoo CEO took a lot of heat for this comment, but there is a great deal of truth to it. With digital photography, photographs are so pervasive that professionals are now competing with a horde of amateurs.
27 APR 2013 by ideonexus
You want a physicist to speak at your funeral
You want a physicist to speak at your funeral. You want the physicist to talk to your grieving family about the conservation of energy, so they will understand that your energy has not died. You want the physicist to remind your sobbing mother about the first law of thermodynamics; that no energy gets created in the universe, and none is destroyed. You want your mother to know that all your energy, every vibration, every Btu of heat, every wave of every particle that was her beloved child rem...Folksonomies: science spirituality
Folksonomies: science spirituality
Examples of how such a person can provide comfort and consolation.
26 APR 2012 by ideonexus
Early Speculation on the Fuel of Stars
A star is drawing on some vast reservoir of energy by means unknown to us. This reservoir can scarcely be other than the subatomic energy which, it is known exists abundantly in all matter; we sometimes dream that man will one day learn how to release it and use it for his service. The store is well nigh inexhaustible, if only it could be tapped. There is sufficient in the Sun to maintain its output of heat for 15 billion years. 1 notes
notesFrom 1920, demonstrating an understanding that the fuel is subatomic energy, but betrays no insights as to how it is release.
21 MAR 2012 by ideonexus
Looking to the Present to Understand the Past
In using the present in order to reveal the past, we assume that the forces in the world are essentially the same through all time; for these forces are based on the very nature of matter, and could not have changed. The ocean has always had its waves, and those waves have always acted in the same manner. Running water on the land has ever had the same power of wear and transportation and mathematical value to its force. The laws of chemistry, heat, electricity, and mechanics have been the sa...Folksonomies: induction
Folksonomies: induction
1 notes
notesOceans have always had waves, streams have always worn down rocks, and other natural laws have always been the same throughout time.
15 JAN 2012 by ideonexus
Heat Makes Solids Fluids and Fluids Gases
The opinion I formed from attentive observation of the facts and phenomena, is as follows. When ice, for example, or any other solid substance, is changing into a fluid by heat, I am of opinion that it receives a much greater quantity of heat than that what is perceptible in it immediately after by the thermometer. A great quantity of heat enters into it, on this occasion, without making it apparently warmer, when tried by that instrument. This heat, however, must be thrown into it, in order ... 1 notes
notesBlack believes there is more heat going into ice that turns to water than is registered on a thermometer.
