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#25 - Ancient Egyptian Precision: What 3D Measurements Reveal | Marián Marčiš

#25 - Ancient Egyptian Precision: What 3D Measurements Reveal | Marián Marčiš

Ancient Technology Podcast vor 1 Monat

0:00

2:36:09

Marián Marcis is a surveyor and associate professor of
photogrammetry who uses 3D measurement to test long-standing
claims about ancient Egyptian stonework. In this episode, we
discuss his peer-reviewed experiment in the Aswan quarry, how
long the unfinished obelisk would really have taken, the saw
marks on the Hordjedef sarcophagus, the famous "overcut" at
Karnak, and the symmetry of Ramesses II. We also dive into how
photogrammetry works, what it can and cannot tell us, and why a
mobile phone is now a serious measuring instrument.

Marián Marčiš:

https://www.researchgate.net/profile/Marian-Marcis-2

https://x.com/mariusderomanu3

The problems of the obelisk revisited article:

https://www.sciencedirect.com/science/article/pii/S2212054823000292

Check Out Other Episodes:
https://www.youtube.com/playlist?list=PL5w7ZZHKlr0Ro64uA-ZH3uvSNyzsCKO57

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Chapters:

0:00 - Intro & Welcome

1:39 - Meeting in person and working together

3:58 - Who is Marián Marcis? Surveyor & photogrammetry
specialist

7:28 - Why scan rocks? Marián's first trip to Egypt

13:45 - What is photogrammetry?

39:42 - Scanning Equipment: Cameras and softwares

54:22 - What limits accuracy and alternative scanning techniques

57:52 - Egypt, the unfinished obelisk, scoop marks & the
competing theories

1:04:00 - How does the quarrying process look? & Engelbach's
experiment

1:13:46 - Röder, Lehner & Kruglyakov studies

1:18:36 - Marián's own experiment in the Aswan quarry

1:24:25 - 15 minutes of quarrying, before & after 3D models

1:33:12 - Hatshepsut's obelisk &final remarks

1:46:18 - Citizen science & the unfinished sarcophagus of
Hordjedef

1:51:40 - The circular saw claim

2:03:21 - Karnak's sixth pylon: the saw marks & the "overcut"

2:09:15 - The colossal Ramesses II hand at Karnak & the
original statue

2:15:50 - Crown symmetry analysis in Luxor Temple

2:19:17 - The Ramesses head: photogrammetry vs LiDAR vs Luma AI

2:26:18 - The Serapeum box

2:32:24 - Closing thoughts & where to find Marián's work

2:35:00 - Members special & Outro