60 Ghz frequency is a part of the V-Band frequencies in the US. It also falls under the category of millimetre radio (mmWave) bands. Millimetre wave radios use frequencies that range anywhere from 30 GHz to 300 GHz. License-free 60 GHz radios are easy to install and have very narrow beams.
2.4 GHz and 5.8 GHz or 5 GHz are the most common wireless frequency band used in sync with IEEE 802.11 Wi-Fi standards. Wireless systems use radio frequencies which works in between 20 kHz and 200 GHz. Hertz (Hz) is the unit of frequency in the International System of Units (SI).
Yes, it is safe to swim while you on periods. Period blood doesn't flow outside the vagina like it usually does due to the counter-pressure of the water. But You still need to wear some a tampon or a menstrual cup to avoid getting into a sticky situation.
Resin tooth filling typically contains a filler particle such as quartz, which provides the mixture's strength and color. It is costly as compared to silver tooth filling.
In some cases, the change in period blood color can indicate a health problem like fibroids, low estrogen levels, and even vaginosis.