History (from Greek ἱστορία, historia, meaning "inquiry; knowledge acquired by investigation") is the scientific study of the past. Events occurring before the invention of writing systems are considered prehistory. "History" is an umbrella term that relates to past events as well as the memory, discovery, collection, organization, presentation, and interpretation of information about these events. Historians place the past in context using historical sources such as written documents, oral accounts, ecological markers, and material objects including art and artifacts.History also includes the academic discipline which uses narrative to describe, examine, question, and analyze a sequence of past events, and investigate the patterns of cause and effect that are related to them. Historians seek to understand and represent the past through narratives. They often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history and its usefulness by discussing the study of the discipline as an end in itself and as a way of providing "perspective" on the problems of the present.Stories common to a particular culture, but not supported by external sources (such as the tales surrounding King Arthur), are usually classified as cultural heritage or legends. History differs from myth in that it is supported by evidence. However, ancient influences have helped spawn variant interpretations of the nature of history which have evolved over the centuries and continue to change today. The modern study of history is wide-ranging, and includes the study of specific regions and the study of certain topical or thematic elements of historical investigation. History is often taught as part of primary and secondary education, and the academic study of history is a major discipline in university studies.
Herodotus, a 5th-century BC Greek historian is often considered (within the Western tradition) to be the "father of history", although he has also been called the "father of lies". Along with his contemporary Thucydides, he helped form the foundations for the modern study of human history. Their works continue to be read today, and the gap between the culture-focused Herodotus and the military-focused Thucydides remains a point of contention or approach in modern historical writing. In East Asia, a state chronicle, the Spring and Autumn Annals, was known to be compiled from as early as 722 BC although only 2nd-century BC texts have survived.
If you enjoy both physics/science and history like me, you may enjoy this video from the Royal Institution. It's about groundbreaking experiments (no theoretical physics); X-rays, particles etc.
I'm only 45 minutes in so I haven't seen the entire video yet, but I wanted to share it...
When I went to college, more than 30 years ago, as far as I can remember, nobody was talking about the use of Occam's razor in science. Reading the works of past scientists, I rarely see them invoking principles of parsimony, let alone cite Occam's razor. Yes, Newton, Einstein, and few others...
One of my friends sent a link to this illustration which I found very, very fascinating:
(Image by Matt Baker, UsefulChart.com, image source: link)
If I decipher the chart correctly, e.g. the letter "O" developed from an image of an eye.
According to the wiki page about "O" an eye indeed...
Hello,
I am trying to teach myself mathematics by starting with Euclid and going up to today. My only background is college algebra and high school algebra and geometry. I am 44 years old.
I've read Euclid and Apollonius. I understood everything except he Appendix in the Conics book (Green...
I've read a lot about Gato / Balao / Tensch class submarines, the ones America used in WWII, and I can't seem to sort out the specific consequences of a dead battery. A lot of you are diesel experts, so maybe someone here knows?
Historical accounts are vague. Dead batteries are certainly a big...
How close to "antenna" was the metal barbell thing which was part of Heinrich Hertz' apparatus? Did he know in theory how to build a radio but just didn't have the right components to do it?
I know someone around that time referred to the problem of radio in terms of needing proper sustained...
I am reading the text 'Innovations in Maxwell's Electromagnetic Theory'. on page 44 there is a discussion on Ampere's circuital law .
The passage is below. I don't understand the final statement. "In general represent a kind of relationship that obtains between certain pairs of phenomena , of...
Summary:: Given the Mayan date (8,10,193) determine the Mayan date that is 0,2,3,5,10 days later.
The Mayans used a complicated date system. The question asks: Given the Mayan date (8,10,193) determine the Mayan date that is 0,2,3,5,10 days later.
The system the Mayans used had two...
Today the inexact differential is usually denoted with δ, but in a text by a Russian author I found a dyet (D-with stroke, crossed-D) instead:
In response to my question to the author about this deviation from normal usage, he stated that this was a suggestion from von Neumann. (Which of course...
Riccardo Giacconi (1931-2018) was an italian astrophysicist who was awarded with the Nobel prize in physics back in 2002 for his important contributions to astrophysics.
Since he was an astrophysicist he must have heard about the multiverse hypothesis, but I have not found a single paper or...
Archimedes Riemann integral is one of the most elegant achievements in mathematics, I have a great admiration for it. Mr. Patrick Fitzpatrick commented on it as
Archimedes first devised and implemented the strategy to compute the area of nonpolygonal geometric objects by constructing outer...
As we all learned a long time ago, the trajectories of individual air molecules can't be predicted, but the behavior of macroscopic air masses can be predicted--if imperfectly, as with weather forecasts.
Similarly, the behavior of human individuals isn't always predictable. The less well...
I will basically focus on 18th and 19th century, I got to know from the biographies of Max Planck and few other that there were no organized syllabus in Universities for studying. Students had to take classes that they could understand and it was less like a lecture and more like a private...
Nobel laureate Hans Bethe was a friend of mathematician-physicist John von Neumann, and he once said:
"I have sometimes wondered whether a brain like von Neumann's does not indicate a species superior to that of man"
and
"[von Neumann's] brain indicated a new species, an evolution beyond man"...
I couldn't match this question with another topic, so I made a new topic.
Suppose we have past H and present P at a certain moment. In present P a measurement is made. For matter of speaking we adopt MWI, so we have the two measurement outcomes A and B diverging in two realities A and B in...
I do not know exactly where to ask this. I do not even know if I can. I chose the General Discussion forum since it seems to me the best place to ask this within this site.
Having said this, Did John von Neumann ever go to Oslo or any other part of Norway?
It is known that he traveled at least...
I've been very interested in history a long time, read many books and watched many documentaries during the years.
I've recently started to watch documentaries on parts of history I did not know very well (the Napoleonic era), and I thought it would be a nice idea to have a thread where those...
Hi all. I'll get to the point. I've been interested in electricity since I was in college. Concepts such as current and resistance seemed easy to grasp for me but voltage remains a little bit obscure. It's thanks to this forum (specially forum members Jim Hardy r.i.p and SophieCentaur, sorry if...
Intense, dramatic, fantastic and at the same time terrible. A must see for history buffs, I'd say.
WW2 - D-Day. Invasion of Normandy [Real Footage in Colour]
I'm wondering how and in what time frame new technologies emerged and found application in the history of science. I could make several examples of those which suddenly and unexpectedly changed the world, but not the vice-versa. In particular, I'm wondering which didn't find an application or...
Photo: Tomb of Ramses VI.
Beautiful scrollable panoramas (360) on 360cities:
Temple of Isis
Tomb of Ramses III
Temple of Horus
Al Dier Monastery at Petra
More panoramas: Mohamed Attef, panoramic photographer.
Other panoramas:
Ramses VI panorama (360) on facebook.
A video showing the tomb of...
This thread is a split-off of this post:
https://www.physicsforums.com/threads/do-macro-objects-get-entangled.946927/page-2#post-5997089
So my issue is this: if, for convenience, we use a Copenhagen interpretation, and we measure an observable WF ##\alpha |A \rangle + \beta |B \rangle##, then...
How come atom was proven to exist just because the electron was discovered in 1874, atom was like a fad of truth on early 1800s right, where atom was pictured at that time like a small brick of ball and nothing else (no electrons, neutrons, protons, parts, etc) and on that year also, chemistry...
I am in search of one or more books that describe the progress in the field of physics (especially during the 18th 19th and 20th century) not only by mentioning the names of lead scientists and the abstract of their work but also have some deeper insights if possible (some math too) last but not...
A story which is frequently to be found on the Internet is the story recounted by the American mathematician Leonard Eugene Dickson to Hadamard: Dickson's mother Tracy (née Tracy ) and his sister spent an entire evening unsuccessfully trying to solve a geometry problem. During the night the...
I was just wondering if there was any proof that the medieval period had more conflicts like wars etc. but with less (peace) negotiation between parties than now?
Thanks so much!
Hello, lovely people. I was wondering if anyone knows what kind of battery Marty Cooper used for the very first cell (mobile) phone call in 1973? I know that by the 80s they were using Nickel-Cadmium batteries but I don't know about that first one.
Thanks in advance,
Kathy
Hey, I was wondering if any of you smart people could help explain in a very simple way (if possible) how the first FM transmitter and receiver worked?
I know, for example, that many current transmitters use a voltage variable conductor to change the frequency of the wave. Did Armstrong do...
Hi, I am researching the early history of electricity and I would love some help.
So, in the very early 1900s (like 1906) there were several items created that were diodes (crystals, Fleming valve, electrolytic detector). As far as I understand, people would use these diodes to convert the AC...
Hi there,
My name is Kathy and I am writing a book about the history of electrical discoveries. I am writing the book for adults who have limited (or no) science backgrounds with a lot of personal details (like Bose who liked to give electric kisses to attractive women, or Alexander Bell's...
I'm interested in the knowledge that was available to aircraft engineers in the period 1900-1920. specifically the thermodynamics and mechanical engineering knowledge generally available, like in how much detail were the calculations on the performance, or the cooling of engines done, how...
The following are, at the top, photos of certain artifacts repatriated from a western museum to Iran, originally excavated from Jiroft, Iran. They are said to date from the 3rd millennium BC.
Essentially identical objects are found dating to 12,000 BC at Gobekli Tepe, Turkey, 3rd millennium BC...
I was wondering if anyone knows of good self study books to help me in school. I am going to be a sophomore next year and trying to be extremely prepared.
Here are the classes:
Chemistry Honors
World History AP
Algebra 2 Honors
European History AP
English 2 Honors
Spanish 3 Honors
Thanks...
I'm looking for an entertaining book on the history of physics and math. I just want it to read for fun. A book that I really enjoyed (really, really) was Entanglement by Amir Aczel. It highlighted how everyone worked together, how they fought, etc.
Any suggestions?
The following passage has been extracted from the John Stewart's English translated version of the "Sir Issac Newton's two Treatises: Of the Quadrature of Curves, and Analysis by equations of an infinite number of terms" http://archive.org/details/sirisaacNewtons00stewgoog:
Here Newton...
Hi,
I've got a strange situation. I'm a teacher in a foreign country, and one of my students wrote stories about historical characters. But his stories are so good, that I'm not shure if he has written them himself... My suspision is, that he has taken some Englisch stories, and translated...
Do you think Newton's piety was important to developing or fueling his philosophical and psychological impulses to be a great scientist and mathematician ?
Did his religious and alchemical goals orient his scientific researches; his outstanding mechanical, mathematical, and optical theories...
I was reading the Wikipedia page on Dynamism in order to get an idea of the motivation and thinking behind Liebniz's physics. In it there is this paragraph:
In the opening paragraph of Specimen dynamicum (1692), Leibniz begins by clarifying his intention to supersede the Cartesian account of...
Hello Everyone
I am not 100 % sure if this belongs in career thread, so please feel free to tell me if this needs to be moved.
I am currently happy with the career path I have chosen, I am still pursuing my MS in Electrical Engineering. However, lately I have been curious about something. I...
I am considering the following question and I want you to agree (but perhaps you don’t):
Rutherford wrote a letter to Bohr, as an answer to a previous letter from Bohr containing one of the first of Bohr’s descriptions of the atomic model, saying that he understood the atom model Bohr...
Hi Guys, new poster here.
I am currently doing a practical report on Uniform Circular Motion, where we had to swing a rubber stopper around attached to a length of string and mass.
I have to do a write up, including the background theory. I have searched everywhere but I have found no clear...
Late last year, I started a thread (https://www.physicsforums.com/threads/historical-paper-dump-sites.780669/#post-4907513) to solicit/compile a list of URLs with open access to historical papers; shortly after, I discovered that several of them weren't as open as they had been...This morning, I...
Does anyone have any suggestions for finding lists of all papers published by individual physicists?
Usually the Google machine turns up hits pretty quickly, but I've hit a brick wall looking for lists for Max Planck and Ludwig Boltzmann.
netlib.org/bibnet/ is amazing, but it's pretty narrow.
First, I completely understand that electrolysis to produce chlorates is simple, practical, and inexpensive. I understand that electrolysis to produce chlorates was being used in the late 19th century. I'm wondering, given the (somewhat) limited distribution of electrical power at the time and...