Carl Linnaeus stayed on Gotland for about a month, and then returned to Uppsala. During this expedition, they found 100 previously unrecorded plants. The observations from the expedition were later published in ', written in Swedish. Like ', it contained both zoological and botanical observations, as well as observations concerning the culture in Öland and Gotland. During the summer of 1745, Linnaeus published two more books: ' and '. ' was a strictly botanical book, while ' was zoological. Anders Celsius had created the temperature scale named after him in 1742. Celsius' scale was inverted compared to today, the boiling point at
Planck temperature its temperature. If an object were to reach the temperature of ("T"), the radiation it would emit would have a wavelength of (Planck length), at which point quantum gravitational effects become relevant. At temperatures greater than or equal to "T", current physical theory breaks down because we lack a theory of quantum gravity. Planck temperature Planck temperature, denoted by "T", is the unit of temperature in the system of natural units known as Planck units. It serves as the defining unit of the Planck temperature scale. In this scale the magnitude of the Planck temperature is equal to 1, while