Daily phenomena which can be explained with transport fundamentals: 可以用传递过程原理解释的日常现象：
1. A thermos is fully filled with hot water. Then a very little, a cup of, or all most all of, hot
water is poured out from the thermos. What will happen for these three cases after the thermos is quickly covered?
从一装满开水的暖瓶中倒出很少量、一杯水量、很大量开水后，马上盖上盖子，这三种情形下，暖瓶盖有什么不同的表现？为什么？
倒出水进入冷空气，加热膨胀。
2. A mug is partially filled with hot water and covered. Why will the air inside rush out after the
mug is shaken and opened?
在水杯中加入一定量开水后立即盖上盖子，并施加摇晃和打开盖子以后，为什么杯内的气体会冲出来？
3. Condensed water or ice may appear on the inside window glass in winter. Why much less
water or ice appears on the glass with a screen outside than other window glass without screens?
冬季室内外温差较大时，室内窗玻璃上会出现凝结水或冰，为什么室外有纱窗的窗玻璃表面比其它窗玻璃上的凝结水或冰少得多？
纱窗阻碍空气与玻璃接触
4. Condensed water or ice may appear on the inside window glass in winter. But whether the
amount of water or ice is uniform or not from top to bottom along a same glass? If not, where is more and why?
冬季室内外温差较大时，室内窗玻璃上会出现凝结水或冰，同样一块窗玻璃上从上到下的凝结水或冰的量是否均匀相同？不均匀的话，上下哪里更多些？为什么？
不均匀 下面的凝结水或冰的量多
5. Double layer windows or single window with double layer glasses all can reduce heat loss
from room. But from the view of heat transfer, there should exist a proper distance between two windows or two glasses, with which the heat loss rate is the lowest. Why?
6. Suppose microwave can uniformly arrive any position of a solid food, then whether the
temperature inside the food is uniform while it is heated in a microwave oven? Why?
微波炉加热一种食品，如果微波可以十分容易的穿透该食品，即微波可以均匀的到达食品内部任何位置，那么该食品被加热升温的过程中，其内部的温度是否均匀？为什么？
7. Two watermelons, complete one and half one, with same volume are placed in a fridge at the
same time. Then, which temperature drops faster? Why?
8. When a person takes a bath in a hot water pool, he will feel hotter if he moves but not so hot if
he stay at a position. Why?
9. Even the room temperature is the same, 25℃, in winter or in summer, your feeling is different
in the room. You may feel a litter hot in summer but not hot at all in winter. Why? Please give reasons as more as possible.
10. There is almost no convection inside the gas phase of a thermal-insulated bottle when liquid
nitrogen exists and the top of the bottle opens to the atmosphere. But there is convection if hot water is filled inside for the same case. Why?
11. Please indicate how the air flows when only one window is opened in a room to get fresh air
in winter or in summer respectively. That is, please show the positions and directions of fresh air and indoor air flow through the window. The room temperature is maintained at around 22℃ whether in winter or in summer. Why?
12. We often feel a little hard in breathing, or lack of oxygen, in hot humid summer; but breathe
easily and freshly in cold winter. Why?
夏天气温高、湿度大的时候我们会感到呼吸不畅，发闷；而在冬天我们却感到呼吸顺畅，清新。这里的原因是什么？
13. You smell an odor because the odor molecules travel to your place from the source. And the
longer the distance, the longer the time needed. However, the real velocity of a molecule can be as high as 400-500m/s, while the diffusion velocity of an odor is much lower. Why?
某种味道从源处到达你所在的位置总是需要一段时间，距离越远，时间越长，味道分子的真实运动速度可以到达400-500m/s，而味道传播的实际速度要慢的多，这是为什么？
Daily phenomena which can be explained with transport fundamentals: 可以用传递过程原理解释的日常现象：
1. A thermos is fully filled with hot water. Then a very little, a cup of, or all most all of, hot
water is poured out from the thermos. What will happen for these three cases after the thermos is quickly covered?
从一装满开水的暖瓶中倒出很少量、一杯水量、很大量开水后，马上盖上盖子，这三种情形下，暖瓶盖有什么不同的表现？为什么？
倒出水进入冷空气，加热膨胀。
2. A mug is partially filled with hot water and covered. Why will the air inside rush out after the
mug is shaken and opened?
在水杯中加入一定量开水后立即盖上盖子，并施加摇晃和打开盖子以后，为什么杯内的气体会冲出来？
3. Condensed water or ice may appear on the inside window glass in winter. Why much less
water or ice appears on the glass with a screen outside than other window glass without screens?
冬季室内外温差较大时，室内窗玻璃上会出现凝结水或冰，为什么室外有纱窗的窗玻璃表面比其它窗玻璃上的凝结水或冰少得多？
纱窗阻碍空气与玻璃接触
4. Condensed water or ice may appear on the inside window glass in winter. But whether the
amount of water or ice is uniform or not from top to bottom along a same glass? If not, where is more and why?
冬季室内外温差较大时，室内窗玻璃上会出现凝结水或冰，同样一块窗玻璃上从上到下的凝结水或冰的量是否均匀相同？不均匀的话，上下哪里更多些？为什么？
不均匀 下面的凝结水或冰的量多
5. Double layer windows or single window with double layer glasses all can reduce heat loss
from room. But from the view of heat transfer, there should exist a proper distance between two windows or two glasses, with which the heat loss rate is the lowest. Why?
6. Suppose microwave can uniformly arrive any position of a solid food, then whether the
temperature inside the food is uniform while it is heated in a microwave oven? Why?
微波炉加热一种食品，如果微波可以十分容易的穿透该食品，即微波可以均匀的到达食品内部任何位置，那么该食品被加热升温的过程中，其内部的温度是否均匀？为什么？
7. Two watermelons, complete one and half one, with same volume are placed in a fridge at the
same time. Then, which temperature drops faster? Why?
8. When a person takes a bath in a hot water pool, he will feel hotter if he moves but not so hot if
he stay at a position. Why?
9. Even the room temperature is the same, 25℃, in winter or in summer, your feeling is different
in the room. You may feel a litter hot in summer but not hot at all in winter. Why? Please give reasons as more as possible.
10. There is almost no convection inside the gas phase of a thermal-insulated bottle when liquid
nitrogen exists and the top of the bottle opens to the atmosphere. But there is convection if hot water is filled inside for the same case. Why?
11. Please indicate how the air flows when only one window is opened in a room to get fresh air
in winter or in summer respectively. That is, please show the positions and directions of fresh air and indoor air flow through the window. The room temperature is maintained at around 22℃ whether in winter or in summer. Why?
12. We often feel a little hard in breathing, or lack of oxygen, in hot humid summer; but breathe
easily and freshly in cold winter. Why?
夏天气温高、湿度大的时候我们会感到呼吸不畅，发闷；而在冬天我们却感到呼吸顺畅，清新。这里的原因是什么？
13. You smell an odor because the odor molecules travel to your place from the source. And the
longer the distance, the longer the time needed. However, the real velocity of a molecule can be as high as 400-500m/s, while the diffusion velocity of an odor is much lower. Why?
某种味道从源处到达你所在的位置总是需要一段时间，距离越远，时间越长，味道分子的真实运动速度可以到达400-500m/s，而味道传播的实际速度要慢的多，这是为什么？