Dislocation
发表于 2025-3-30 12:11:09
http://reply.papertrans.cn/32/3191/319100/319100_51.png
ANN
发表于 2025-3-30 14:44:35
Geologic Time,Scottish geologist James Hutton realized that the Earth was very much older; there was literally an abyss of time. The geologic record in the Paris Basin suggested that there had been not one, but a series of ‘Creations’ each ended by a catastrophe. In the early nineteenth century Charles Lyell real
轻浮女
发表于 2025-3-30 18:39:23
Putting Numbers on Geologic Ages,rate of delivery of salt to the ocean by rivers, the Earth’s age was calculated to be 90 million years. Many geologists felt that these ages were too short to account for everything that had happened. A major breakthrough came at the end of the nineteenth century with the discovery of radioactive de
HILAR
发表于 2025-3-30 22:14:55
http://reply.papertrans.cn/32/3191/319100/319100_54.png
lethargy
发表于 2025-3-31 04:05:49
http://reply.papertrans.cn/32/3191/319100/319100_55.png
Pamphlet
发表于 2025-3-31 08:10:40
http://reply.papertrans.cn/32/3191/319100/319100_56.png
宏伟
发表于 2025-3-31 09:21:00
Exploring The Electromagnetic Spectrum,when burned, chemicals often gave off light at very specific wavelengths. It became possible to determine the elements present in a compound by examination of the spectrum. The element helium was discovered in the spectrum of the Sun’s corona during an eclipse 30 years before it was discovered trapp
separate
发表于 2025-3-31 15:25:56
http://reply.papertrans.cn/32/3191/319100/319100_58.png
侵略主义
发表于 2025-3-31 20:53:09
http://reply.papertrans.cn/32/3191/319100/319100_59.png
Painstaking
发表于 2025-3-31 23:00:44
,What’s at the Bottom of Alice’s Rabbit Hole,he shorter wavelengths and vice versa. Max Planck found a solution by assuming the energy is not continuous but comes in discrete particles, known as quanta. This explained the photoelectric effect. Niels Bohr produced a new model for the structure of the atom using quantum physics. This had major i