AMITY
发表于 2025-3-23 12:23:20
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Abnormal
发表于 2025-3-23 15:06:31
Shall We Run Out of Energy in Our Time?We have seen in the last chapter that the fossil fuel energy sources which we have been using will be exhausted. The amounts of all of these sources initially, before we started to use them, are shown in Table 4.1.
Generic-Drug
发表于 2025-3-23 21:43:17
How Long Does It Take to Develop and Build Up a New Technology?The following two points summarize those discussed so far in this book:
依法逮捕
发表于 2025-3-24 00:35:00
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Vertical
发表于 2025-3-24 04:56:30
The Most Available Energy Source: The SunOur sun presents us with another form of energy, in addition to those originating on earth—namely, sunlight. Daylight is radiation which reaches us from the sun. Moonlight consists of light which travels from the sun to the moon and is reflected back to us on earth (Figure 9.1).
密码
发表于 2025-3-24 07:44:08
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Glutinous
发表于 2025-3-24 13:13:37
What is Energy?logical existence, for the atmosphere’s warmth which embraces us, for the light by which we see, and for the power by which we move. In fact, even matter itself can be viewed as a form of stored energy.
Mucosa
发表于 2025-3-24 15:56:24
Household Energy from the Sunnergy load in industrialized countries like the U.S. It would therefore be very worthwhile to get this energy directly from the sun by collecting it on rooftops, at least in the sunnier parts of the world. A pioneer in this field is seen in Figure 11.1.
受辱
发表于 2025-3-24 21:52:44
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Common-Migraine
发表于 2025-3-25 01:56:30
Energy Storage and Transmissionliance upon fossil fuels will end within the lifetime of many of the readers of this book, and we must build a system for collecting and distributing inexhaustible clean energy in less than 50 years. If we fail to do this, our civilization will be in doubt.