35:15Search results
- Category: Earth, Energy & Environment
Results for “efficiency”
18 videos35:15
21:03heat pumpsExplainer
Why Heat Pumps are Immensely Important Right Now
Technology Connections
9 HN recommenders
28:04heat pumpsExplainer
Ground Source / Geothermal Heat Pumps and Other Info
Technology Connections
6 HN recommenders
46:33heat pumpsExplainer
Heat Pumps are Not Hard: Here's what it will take to start pumping
Technology Connections
5 HN recommenders
24:55electric kettles and household powerExplainer
Why don't Americans use electric kettles?
Technology Connections
5 HN recommenders
14:58
16:39portable air conditionersExplainer
Portable Air Conditioners - Why you shouldn't like them
Technology Connections
5 HN recommenders
14:28hydrogen combustion enginesExplainer
The Unfortunate Truth About Toyota's Hydrogen V8 Engine
Engineering Explained
3 HN recommenders
32:21indoor crop lighting efficiencyLecture
Turning Photons Into Food
Apogee Instruments Inc.
3 HN recommenders
32:51thermoelectric coolingExplainer
Thermoelectric cooling: it's not great.
Technology Connections
3 HN recommenders
20:02
5:35
22:15passive cooling with awningsExplainer
Awnings: a simple cooling tech we apparently forgot about
Technology Connections
2 HN recommenders
21:40street lightingExplainer
The LED's Challenge to High Pressure Sodium
Technology Connections
2 HN recommenders
15:01
25:40wireless ev chargingDemo
Wireless vs wired DC fast charging efficiency test
Bjørn Nyland
1 HN recommender
26:54refrigeration efficiencyExplainer
Chest Freezers; What they tell us about designing for X
Technology Connections
1 HN recommender
1:08:15gas vs electric stovesExplainer
Gas stoves aren't really that fast - even standard electric is faster!
Technology Connextras
Discussed on HN
Sources and selection
Energy and environmental questions involve engineering, natural systems and long time scales. These videos cover climate, geology, ecology and the ways energy is produced and used. Explore a topic to understand a physical process or compare approaches to a practical environmental problem.
Indie Picks is organized from video metadata and uploader descriptions; it is not a full-video editorial review. HN Library retains community discussions. Sources and data notes