Did you know this about light bulbs?💡🤔 #science #physics #chemistry #scienceexperiment #light

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[rockpadstudios]

you have to respect the 1000's of hours the early scientists worked to figure stuff out.

[danrichards]

I was a little kid in the 80’s, born in 81. Was into the show “mr. Wizard”, “contact”, etc. when I was around 7 yrs, I broke a bulb open and put it in a lamp, turned it on. It got real bright and burned out. I thought the bulb was a vacuum but couldn’t figure out how they made a vacuum with a melted glass bulb. It was before I even knew what an inert gas was.

[tonymcmenim]

Interestingly although we call them light bulbs they emit more energy in the infrared range than the visible range. They are essentially heat bulbs that also emit visible light.

[emmanuelduran]

This was awesome to watch!
Please make more

[captainchaos]

Love this first year science stuff. It's what captures kids imagination and gets them into S.T.E.M.

[dylangergutierrez]

It's really surprising that the filament doesn't get much dimmer when literally immersed in liquid nitrogen.

[mattbarry]

An excellent demonstration, keep up the good work!

[defghi]

Super great demonstration of how inert gases work.

[davidca]

I still have a few boxes of these old bulbs never used, now that they are basically not made anymore for the most part itll be fun in a few decades when im old to show my future grandkids.

[tacmonkey]

Another principle is also displayed; the hue, or colour temperature, changing as the filament burns hotter as it is moved from liquid to gas nitrogen. This is the very same effect that is referred to when a light source is labelled with what hue its light has. Its the corresponding hue of an incandescent filament in degrees Kelvin would have, so for example a LED bulb that gives a "cold" blueish light will be said to have hue of 5000K, the temperature of a tungsten filament burning quite hot. Counterintuitively, a light that is described to have a warmer hue, with more red and less blue, will be labeled as 2700K, the temperature reference of a filament burning much cooler.

[ilovethesNW]

This!! More science on social media please!!!!

[PintuMahakul]

👍 Wonderful information shared about the bulbs. Thank you very much for sharing.

[jensschroder]

That's over 2760° Celsius! For most of the world outside the US.

[sspotter]

I love that Bruce McGill loves science ❤.

[troys]

I wonder how soon one will first have to explain what an incandescent light bulb is. 🤔

[coltenh]

Awesome demonstration. Even knowing exactly what would happen this was a good watch, A+ science communication.

[effyleven]

If you state filament temperature in Degrees Kelvin (°K) instead of Degrees Fahrenheit (°F), you also state the Colour Temperature (CT) of the light it produces.
A typical CT for a domestic incandescent light bulb is 2900°K... or, for photographic use, 3200°K.

[jedidrummerjake]

I remember science before the internet! Super Neato!

[stranglx]

We literally don’t have those in the UK anymore, tungsten filament/halogen lamps have been phased out in favour LED because they use 10% of the power.

[J.K.Steingraeber]

Outstanding real content thank you sir!