We need to find better ways to manage the resources we already have. We also need to find alternative energies that last for ever or a really long time, eg. nuclear, solar, wind, water, etc .
A(n)<u> Solid</u> coupling is used when it is necessary to extend the length of a shaft or to provide a means of disconnecting a shaft.
The basic function of all couplings is to transmit power, accommodate misalignment and compensate for axial movement (end movement of shafts). Sometimes, a coupling is asked to absorb shock or vibration. A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power.
Types of Couplings:
- Rigid coupling.
- Flexible coupling.
- Sleeve or muff coupling.
- Split muff coupling.
- Flange coupling.
- Gear coupling.
- Universal joint (Hooke's joint)
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Answer: Perceptual adaptation
Explanation: Since Stefan was involved in an experiment concerning the study of vision and the wearing of glasses that invert his vision, it took some time to perform a perceptual adaptation. Perceptual adaptation is, in fact, the means by which the brain perceives differences, most often as in this case in the field of vision, which Stefan witnessed.
Answer:
By and by he learnt the art of polishing stones and became a master goldsmith and also acquired the expertise to create lead molds used for making trinkets. Using this knowledge, Gutenberg adapted the existing technology to design his innovation
Explanation:
Can you add the options pls
