<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>The Gravity Engine: Ancient Water Systems That Shaped Civilization on Heltaher</title><link>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/</link><description>Recent content in The Gravity Engine: Ancient Water Systems That Shaped Civilization on Heltaher</description><generator>Hugo -- gohugo.io</generator><language>en</language><copyright>All rights reserved Hisham Eltaher @ heltaher</copyright><lastBuildDate>Wed, 29 Jan 2020 00:00:00 +0000</lastBuildDate><atom:link href="https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/index.xml" rel="self" type="application/rss+xml"/><item><title>The Gravity Engine - Part 1: Qanat: The Gravity-Fed Engine of Persian Oases</title><link>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-01/</link><pubDate>Sat, 25 Jan 2020 00:00:00 +0000</pubDate><guid>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-01/</guid><description/></item><item><title>The Gravity Engine - Part 2: Yakhchāl: Harnessing Radiative Cooling in the Desert</title><link>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-02/</link><pubDate>Sun, 26 Jan 2020 00:00:00 +0000</pubDate><guid>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-02/</guid><description/></item><item><title>The Gravity Engine - Part 3: Hypocaust: Engineering Radiant Heat for Roman Comfort</title><link>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-03/</link><pubDate>Mon, 27 Jan 2020 00:00:00 +0000</pubDate><guid>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-03/</guid><description/></item><item><title>The Gravity Engine - Part 4: Barbagal Mill: Automation and the Cascade of Roman Power</title><link>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-04/</link><pubDate>Tue, 28 Jan 2020 00:00:00 +0000</pubDate><guid>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-04/</guid><description/></item><item><title>The Gravity Engine - Part 5: Aqueducts: Mastering Pressure with the Roman Siphon</title><link>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-05/</link><pubDate>Wed, 29 Jan 2020 00:00:00 +0000</pubDate><guid>https://heltaher.com/heltaher/systems-innovation/ancient-water-climate-control-systems/post-05/</guid><description/></item></channel></rss>