1. Why Human Discover Mars
- Similarity to Earth, day length, polar ice caps, various surface feature
- Potential for Life
- Potential for Colonization
- Culture and historical: Mars has been a fixture in the sky
- Space race
2. Why US invade Vietnam
- Background: French colonial rule
- Cold War, US sought to contain the spread of communism
- Domino Theory: if Vietnam became communist, other countries would be influenced
- Partition of Vietnam: 1946-1954
- North, Ho Chi Minh, communism
- South, Ngo Dinh Diem, anti-comm
- US assistance to South Vietnam
3. Why Coconut has so many fat
Evolutionary Perspective:
- Fat serve as energy source for germination
- Buoyancy for dispersal
- Protection: act as a cushioning 缓冲
Coconut oil?
- From the kernel or meat of mature coconut
- Saturated oil, but medium-chain, unlike animal fat, long-chain
4. Relationship between Fat and Oil
State:
- Fat often solid or semi-solid
- Oil typical liquid
Source:
- Fat: animal
- Oil: plants
5. How is Chocolate made? How is it invented?
History: traced back to ancient Mesoamerican cultures, especially Maya and Aztecs
Process:
- Harvesting: cacao tree, produce large pods, contain cacao beans
- Fermentation: beans are placed in shallow containers to ferment,
- Crucial to develop the flavor
- several days
- Drying: spread out in the sun, take up to a week
- Roasting: bring out the rich chocolate flavor
- Winnowing: post-roasting
- Grinding, Mixing