hair shaft
The inner portion of the hair is the cortex and the inner-most portion is the medulla.
The inner portion of the hair is the cortex and the inner-most portion is the medulla.
No, typically the underwater portion of an iceberg is not bigger than the portion that is visible above water. Icebergs are known to have a larger portion underwater, but this is due to the difference in density between ice and seawater rather than the underwater portion being larger in size.
Visible light is in the portion of the electromagnetic spectrum between infrared (IR) and ultraviolet (UV) light.
The visible light spectrum (wavelengths from 380 to 700 nanometers)
a lock of hair
The (not surprising) name is "visible light."
You should try out Veet roll on. It is a form of epilation, which removes hair at the root, rather than just the visible portion above the skin. It is not a painful process at all.
Hair Shaft
hair shaft
Yes, the visible portion of the electromagnetic spectrum consists of wavelengths between approximately 400 to 700 nanometers. This range is a small portion of the entire electromagnetic spectrum, which includes radio waves, microwaves, infrared, ultraviolet, X-rays, and gamma rays.
We refer to this portion as "visible light," which has wavelengths between 390 nm and 700 nm.