Semiconductors
Semiconductors are an important part of CCD cameras (Charge-coupled Devices). They help to convert light into a current in the technology.
- n-doping
Here, silicon (Si) is doped with a material like phosphorus (P). This replaces some silicon atoms in the crystal.
The silicon bonds with the phosphorus but leaves behind an extra electron. This is loose inside the crystal and can be freed easily. This lets it conduct electricity.
The electrons that are freed have a negative charge, so the process is called n-doping.
Make Your Own Spectroscope
Spectroscopy involves splitting light into its different wavelengths. Each chemical element emits or absorbs a unique spectrum&n
Telescopes Quiz
Telescopes are used to magnify distant objects. They are a vital tool for astronomy. Over the last few hundred years, scientists and engineers have built bigger and better telescopes, revealing the mysteries of the Universe. But how much do you know about telescopes on Earth and beyond?