The branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment, drawing upon such subjects as industrial arts, engineering, applied science, and pure science.

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3
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0answers
138 views

Harvard Architecture: How did Harvard Mark I separate data and instruction?

How did Harvard Mark I separate data and instruction? I have read the article in Wikipedia but I didn't understand how data and instruction was separated using a punched paper tape. It said ...
5
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1answer
107 views

Who is responsible for the oldest known calendar?

What is the oldest known calendar? Where exactly was it developed? Who was responsible for its creation?
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3answers
218 views

Were China's problems in the past two centuries due to “missing out” on the industrial age? [closed]

Until the industrial revolution, China was (mostly) an "advanced" or at least "state of the art" country. That is, until it fell behind the West, starting in the late 18th century. Recently, China ...
6
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1answer
153 views

Which floating-point representation did Konrad Zuse's Z1 use?

Wikipedia notes: "The Z1 was a 22-bit floating point value adder and subtracter". But the specific format used is nowhere to be seen.
2
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1answer
144 views

Time of day first traffic light exploded

The first traffic light was installed in December 1868 at Bridge Street, Great George Street and Parliament Street in London. It exploded on 2 January 1869. What time of day did it explode?
6
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1answer
165 views

British way in construction of AFV

Why have British tanks not changed very much? The USA have moved from the VSS, VVSS, HVSS (Lee and Sherman) suspensions to the torsion bar suspension (T26 and Patton family), USSR - from twin bogies ...
10
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1answer
240 views

How accurate and detailed were geographical maps created and updated by the Romans?

Knowledge is power, and having superior geographical knowledge vs. your imperialistic enemies and competitors was probably a big advantage in the middle ages. Some specific examples would be knowledge ...
2
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1answer
94 views

What are the contributions of Professor Hans List?

Considering his academic titles, what are the contribution of the automotive engineer, Professor Dr Dr h.c.mult. Hans List? What did he invent? I could not find anything except a brief obituary.
0
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1answer
732 views

What factors contribute to the fact that only a handful of countries manufacture aircraft jet engines? [closed]

The USA (GE, Pratt & Whitney), Russia (NPO Saturn, Klimov), France (Snecma) and the UK (Rolls Royce) are the only countries that have aircraft jet engine manufacturers. What factors might ...
13
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1answer
1k views

How did the monks whose job was to copy books react to Gutenberg's printing press?

It's typical to see people whose job it is to perform a manual task to - collectively - object when a new technology is introduced which makes their job obsolete (as the quintessential example, see ...
7
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2answers
184 views

How is the photography printing on newpaper is possible in the WW2 era?

How is the photography printing on newpaper is possible in the WW2 era? For example, how is the photo on the newpaper at the below link is possible especially on HD quality? ...
7
votes
3answers
505 views

When was the earliest recorded battle with the usage of gunpowder as an offensive weapon?

When was the earliest recorded battle (on script) with the usage of gunpowder (in any form) as an offensive weapon?
9
votes
4answers
430 views

Is there any evidence to support the claim that the US Strategic Defense Initiative played any significant role in undermining the USSR?

I have been reading Sorrows of Empire by Chalmers Johnson, and one of the things that stuck me was a quote by Soviet hydrogen bomb creator Andrei Sakharov who was released from political imprisonment ...
2
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4answers
2k views

When Did Commerical Studio Photography Become Common?

I was looking at this Wikipedia article, History of photography, and I wondered when commercial photography studios became common place and affordable for the average person. According to the ...
28
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5answers
2k views

What are the factors that caused the new world civilizations to be less technologically advanced than the old world?

Assuming they started at the same point (maybe the split of the continents or the migration of the first "Native Americans" to the American continent), why did the Old World end up developing faster? ...
8
votes
2answers
235 views

What role did the media have in the outcome of the “Arab Spring” revolt in Tunisia

What was the role of the media in the outcome of the revolution in Tunisia? Throughout the revolution we saw the role of the media was extremely important, what was the role of the media during the ...
4
votes
1answer
112 views

Explosive Ordinance Yield Over History

I'm writing an essay, and one of the elements of it has to do with the development of military technology throughout history. I've noticed that there is a quickly increasing and disturbing trend in ...
4
votes
1answer
197 views

What differences led to Technicolor becoming the dominant color filming technology in Hollywood?

Apparently another technology, Kinemacolor, was invented first in the UK, but it never caught on in Hollywood. Kinemacolor was expensive, and had some other glitches involved, but the fact that it was ...
8
votes
2answers
399 views

What Was the State of German Tank Design In Between the World Wars?

I am reading about the Spanish Civil War in a book by Antony Beevor entitled "The Battle for Spain: The Spanish Civil War 1936-1939". According to Beevor while the nationalists were able to control ...
16
votes
2answers
4k views

When did steel first appear? [closed]

When in history do we first have record of steel being used as a material? I am also interested in both its initial purpose and when it was first used in weapon making.