Abstract: An example method may include recording, via a microphone of a first playback device, audio played by a second playback device in accordance with a calibration setting. The method may further include, based on the recorded audio, determining that the calibration setting is invalid. The method may further include, in response to determining that the calibration setting is invalid, sending an indication that the calibration setting is invalid. This disclosure also includes example non-transitory computer readable media and playback devices that are related to the example method.

Abstract: Disclosed herein are compositions for use in treating anxiety, inflammatory conditions, fertility-related disorders, for increasing cognitive performance and managing weight comprising 10-Hydroxy-2-decenoic acid or a derivative thereof and preferably at least one polyunsaturated fatty acid. The preferred polyunsaturated fatty acid is DHA.

Abstract: An enclosure associated with a wind turbine tower includes a plurality of pre-assembled sections configured to be attached to a section of the wind turbine tower. The plurality of pre-assembled sections form an enclosure around the section. The enclosure is configured for storage of electrical components associated with a wind turbine. The enclosure is also configured to increase available space within the wind turbine tower by storage of the electrical components in the enclosure.