How GenAI Costs Sank Duolingo’s Stock 20% Despite Record Growth

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How GenAI Costs Sank Duolingo’s Stock 20% (A Non-AI Generated Analysis)

A human analysis of financial documents reveals what AI content farms missed: Duolingo’s GenAI features are undermining its own profit margins.

Dhawal Shah Mar 10, 2025

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Heat Transfer

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An Introduction to Heat Transfer
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The essential course for understanding the Mechanics of Heat
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Steam boilers : Principles, Operations, Design & Control
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Learn about fish drying techniques, factors affecting the process, and various dried fishery products. Explore water activity, moisture content, and heat transfer in this comprehensive overview.
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Heat Transfer

Master fundamental principles of conduction, convection, and radiation in engineering applications. Learn analytical methods, experimental correlations, and heat exchanger design for practical thermal systems.
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Non-Equilibrium Green's Function Method for Energy, Momentum, and Angular Momentum Transfer Mediated by Photons

Explores non-equilibrium Green's function method for energy, momentum, and angular momentum transfer via photons, covering applications in graphene, nanotubes, and molecular systems.
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How Deaerators Work - Engineering

Explore the inner workings of deaerators, including spray and tray types, components, operating conditions, and designs. Learn how these devices remove dissolved gases from boiler feedwater to prevent corrosion.
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Introduction to Autodesk CFD 2016

Autodesk CFD is a tool which will solve almost any heat transfer or fluid flow problem. In this course, Introduction to Autodesk CFD 2016, you'll be introduced to this helpful Autodesk tool. First, you'll learn the user interface, view and selection mo…
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Kavli Institute for Theoretical Physics
A Bose-Einstein Condensate Thermal Engine - Gabriele De Chiara

Explore Bose-Einstein condensate thermal engines with Gabriele De Chiara. Discover quantum fluctuations, electromagnetic fields, and their impact on physics, chemistry, and engineering applications.
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A Flexible and Scalable Thermal Test Vehicle Design for Electronics Cooling Solutions

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Explore advanced thermal cooling solutions for heat sinks, including targeted flow technology and experimental setups for enhanced cooling efficiency in single-phase immersion systems.
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Modeling the Impact of Passive Ventilation Systems on Multi-Zone Thermal Dynamics

Explore advanced thermal modeling techniques for passive ventilation systems and their effects on multi-zone environments, focusing on dynamic temperature control and energy efficiency.
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Thermal Mass and Night Flushing in Building Design

Explore the principles of thermal mass, time lag effects, and nocturnal ventilation techniques for efficient building temperature regulation and energy conservation.
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Heat Transfer Mechanisms in Surface Facilities for Oil and Gas Handling - Lecture 57

Explore fundamental heat transfer mechanisms - conduction, convection, and radiation - with practical applications in petroleum engineering and surface facility operations.
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