Task reminder: After the recording ends, write a summary of 50–70 words in 10 minutes. Cover the main idea and key supporting points.

1. Sample Audio 1 — The Economics of Inequality

A lecture examining the causes of rising income and wealth inequality since the 1980s — including technological change, globalisation, tax policy, and declining union membership — and evaluating redistribution mechanisms.

Sample Summary

2. Sample Audio 2 — Wetland Ecosystems

A scientific lecture on the ecological functions of wetlands — water filtration, flood buffering, carbon storage, and biodiversity — and the dramatic global decline of wetland area due to draining for agriculture and development.

Sample Summary

3. Sample Audio 3 — The History of Vaccination

A historical overview from Edward Jenner's smallpox vaccine in the 1790s through the development of vaccines for diseases including polio, measles, and influenza, to the mRNA platform innovations used in COVID-19 vaccines.

Sample Summary