Comment on Revised Short Research Paper – Greek Fire: A Dangerous Weapon and Mysterious Secret by jeremyl

Greek fire is such a neat topic. I found this site ( where there were a number of people discussing possible materials in Greek Fire. It’s just so strange that even today we have no idea what it is. Alot of theories suggest an oil based mixture as that would allow the “fire” to burn, even on water. Other suggestions were mixtures that included quicklime — a material that would explode on contact with water. However others claim that quicklime doesn’t act the way the Greek Fire is described. I suppose this will continue to be a mystery.

Comment on Summary of the Chapter “The Emergence of Big Business” in Mansel Blackford’s Business Enterprise in American History by jeremyl

This is actually a very interesting topic because this is an example of a company contributing a lot to the national economy and being rewarded for it with a major foothold in a multi-billion dollar industry. On one hand, this benefitted so many people and improved their quality of life. But, because of how capitalism works, industries that get big early cannot be toppled. For example, as part of a series of mergers, B&O is now a part of the massive CSX Transportation, which was worth $31 billion in 2013.

I’m not saying that there is necessarily anything wrong with this, but it is interesting to see how it would be extraordinarily difficult for a new company to compete. Atleast in the east coast area, you would have almost no choice but to use their service if you wanted to use railroads. Fortunately, there are other methods of shipment, but if there wasn’t, you would hardly be able to call it a free market when no one else could compete.

Eugene Ferguson on the Origin of Steam Engines

By Jeremy Lane In Eugene Ferguson’s article, he explains that, while James Watt made significant improvements on the steam engine, it was Thomas Newcomen that was the creator of the original steam engine. So while most people might give Watt all the credit, Ferguson does his best to show that Newcomen made just as significant contributions …

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Carlson’s “The Romans”

Introduction: In the article, “The Romans”, Carlson explains goes over a brief history of the Roman’s with a focus on the technologies they made. The technologies that he goes over can be broken into two categories:  Military Technologies and Social Technologies. Military Technologies: When developing military technologies, the Roman’s focused on siege and artillery weapons, such …

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Comment on Roman Hydraulic Technology by jeremyl

I really liked how you explained your topic. Your tone and writing style made it a pleasure to read and easy to follow. Your topic is actually pretty interesting too– previously, I had just assumed that the Romans only used aquaducts, but the fact that they also built a dam, used chain of pots, and built a noria are also super interesting because they are less well-known. However, you didn’t really give much description for the noria or chain of pots.

I found a decent diagram for the chain of pots, also called a chain pump:

When I was looking that up, I also found a site with a lot of brief descriptions of technology relating to this topic. One of the technologies listed is the noria, so I could see how that worked.
Here’s the link to it:

Overall, I did like your article, but it was missing some the descriptions for some very interesting devices.

Comment on Why and When did money start? by jeremyl

I liked that you mentioned a relatively new modern currency (Bitcoin) so that you can make a modern connection at the beginning. It helps show that your topic is not just something in the past– it is very much still relevant to understand why and how currency is created today.

Your topic reminded me of this super fun video series on the history of paper money that I watched a while ago. Although it’s a little more limited in scope since it only talks about paper currency, it goes very in depth in a simple and enjoyable format: