Adam Grosser: A mobile fridge for vaccines

The video discusses the global issue of lack of refrigeration, affecting 1.6 billion people. It highlights the historical development of refrigeration, focusing on the IcyBall and its challenges. Modern advances, including computational work at Stanford, have led to a nontoxic, low-pressure refrigerator prototype. This device, heated by cooking fires, can refrigerate for 24 hours and is affordable, potentially revolutionizing access to refrigeration worldwide.

What is the primary issue highlighted in the introduction regarding global refrigeration?

• Over-reliance on fossil fuels

• Inefficient refrigeration technology

• Lack of access to electricity and refrigeration

• High cost of refrigeration units

Who commercialized the IcyBall in 1928?

• A team from the UK

• Powel Crosley

• Adam Grosser

• Ferdinand Carré

What was a major problem with the early IcyBall refrigeration system?

• It used toxic ammonia leading to high pressures

• It was too large for practical use

• It was too expensive to produce

• It required electricity to operate

What significant advancement did the team achieve in modern refrigeration technology?

• Reducing the size of traditional refrigerators

• Creating a low-pressure, nontoxic refrigerator

• Inventing a new type of compressor

• Developing a solar-powered refrigerator

How long can the new refrigeration prototype keep contents cool after being heated?

• 48 hours

• 12 hours

• 72 hours

• 24 hours