Exploring the history and validity of the horsepower measurement.

• The term 'horsepower' is challenged with historical experiments showing inconsistencies.
• James Watt's 18th-century experiments are considered to be more of an advertisement for his steam engines rather than scientific fact.

Promotion of KC HiLiTES off-road lighting products with a discount offer.

• KC HiLiTES is introduced as Donut's official off-road lighting partner.
• Various products are showcased along with a 15% discount offer using a promo code.

Understanding James Watt's influence on the horsepower term.

• James Watt's improvements to the steam engine led to his comparison to horse labor.
• Watt's claim that his steam engine could do the work of several horses was a strategic marketing move.

Choosing a horse suitable for the dyno test.

• A variety of horse breeds present a challenge in standardizing 'horsepower'.
• A horse named Big D is selected for his draft horse characteristics and similarities to the horses used in Watt's time.

The design and construction of a horse-powered dyno.

• The team designs a rig to transfer a horse's linear pulling power to a dyno.
• An inertial dyno is chosen to measure the power output from the horse.

Collaborating with experts to refine the horse dyno concept.

• Jeremiah realizes he needs professional help and contacts Adam Savage for advice.
• Adam suggests consulting a mechanical engineer to ensure scientific accuracy.

Enlisting Motivo Engineering to assist with the project.

• Motivo Engineering, known for ambitious projects, agrees to help build the horse dyno system.
• The team at Motivo starts planning and testing to ensure the project's success.

Completing the construction of the horse dyno rig.

• The rig is nearly complete with only a few adjustments left.
• Jeremiah helps with welding to secure the structure for the dyno.

Testing the dyno with human power for calibration.

• Before testing with Big D, the team tests the dyno's accuracy with their own pulling power.
• The team manages to generate up to 1.9 horsepower by pulling together.

Conducting the dyno test with Big D to measure his horsepower.

• Safety protocols are emphasized for Big D during the test.
• Multiple tests are conducted to ensure accurate and consistent data.

Announcing the true horsepower of a horse.

• After crunching the numbers, Big D's crank horsepower is revealed to be 5.7.
• The team celebrates the successful completion of the experiment.