Globe Electric 35044 Moderna Luxury Oversized Frosted LED Filament Light Bulb, 4 Watts (40 Watt Equivalent),
TCP 7.5W A19 LED Bulb Medium E-26 Base 2700 Kelvin 330 Degree Dimmable 120V in White - FA19D6027EW - Ferguson
At the middle of the mercury barometer tube there is a little column of air with the length l(0) and there is vacuum at the top as shown. Under the normal atmospheric