they are placed on roadsides and they float there
Gratings often cover drainpipes to prevent debris, leaves, and other debris from clogging the drainage system, which can lead to water buildup and potential flooding. Additionally, they provide safety by preventing people or animals from accidentally falling into open drains. Gratings also help maintain proper airflow and drainage efficiency while allowing rainwater to flow through easily.
I don'know came on this f*king app to find the answer 🙄😌
Because ino is acid wich is not needed
Diffraction gratings can be categorized into 2 types - reflection gratings and transmission gratings. So, transmission gratings are a subset of diffraction gratings. Kristian Buchwald, Ibsen Photonics
There are typically two main types of diffraction gratings: transmission gratings, which allow light to pass through the grating material, and reflection gratings, where light is reflected off the surface of the grating. Both types can be further categorized based on the method used to create the grating, such as holographic, ruled, or blazed gratings.
Amy I. Woods has written: 'Work on diffraction gratings'
Suggest a suitable polymer and the likely manufacturing process for each of the following and give reasons for your choice:rainwater gutters and drainpipes,a domestic vacuum cleaner body,a 13 A electrical socket,a domestic washing-up bowl, andlenses for vehicle rear lights.
Ruled or linear diffraction gratings consist of a series of closely spaced parallel lines or grooves etched onto a surface, which diffract light into various directions based on its wavelength. In contrast, holographic diffraction gratings are created using laser interference patterns, resulting in a smoother and more complex surface that can produce more efficient and uniform diffraction across a broader range of wavelengths. While ruled gratings are typically easier to manufacture, holographic gratings often provide superior performance in applications requiring high resolution and efficiency.
Pantelis Papadopoulos has written: 'Optical fibre holographic gratings'
He designed the Gregorian Telescope and discovered the principles of diffraction gratings.
you can demonstrate total internal reflection using a light source and glass gratings.
Homeowners can blame the extensive root systems of trees for clogging their drainpipes. Trees have roots that can grow far and wide in search of water and nutrients, which can lead them to infiltrate and obstruct pipes.