Home-made lightbulb from a pencil lead! | Live Experiments (Ep 5) | Head Squeeze
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- Опубликовано: 20 авг 2024
- Science communicator Fran Scott makes a lightbulb using everyday materials such as batteries, a jam jar and some pencil lead.
IMPORTANT: You will need one sober adult with a sense of scientific wonder...
What you need to get started is: A pie dish, a medium sized jar, crocodile clips with red and black wires attached, a pair of scissors, a large bulldog clip, 8 D sized batteries, pencil lead (0.5 mm thick), a tea light, a lighter and some electrical tape.
1. Place your pie dish on the the centre of your work top
2. Clip your crocodile clips into the bulldog clip (the bulldog clips is just used as a 'holder' for your crocodile clips)
3. Place your tea light on your pie dish right next to your bulldog clip
4. Place your pencil lead between the two crocodile clips
5. Use your electrical tape to tape your 8 D batteries together tightly together to make a giant battery
6. Tape the wire from your black crocodile clip to one end of your giant battery
7. Get an adult to light your tea light with a lighter
8. Now place your jar over the bulldog and tea light.
9. Once the flame is extinguished hold the red crocodile clip wire against the other end of your giant battery
10. Now sit back and watch your homemade lightbulb glow.
Live Experiments: Our resident science demo thrill-seekers will give the RUclips audience their big science treat each week with an experiment where you can find out how to make food dance, power a light bulb with household objects and create mega smoke rings!
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Brit Lab you are the best. I love every experiments you demonstrate, keep up the work, you are awesome!!!!
I think I am doing this for my science project. it is a very cool science project!
In electricity, a battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy.
My left ear enjoyed the intro :)
True but the pencil lead is easy to get hold of and demonstrates the principal
Hey thats actually a really good idea.
I like that you showed us why you use the candle instead of just telling us.
It worked thanks
I couldn't help but notice that also. Just reinforcing kiddies that pencils DO use lead when in fact this isn't the case
The pencil lead is made of graphite. There are other ways of doing this that produce better light.
Well, if by sticking with graphite you can take two pieces and space them proper and run enough current to create an arcing effect.
Larger pieces of graphite. Like stripping the center out of a regular wood pencil.
because that is what natural visible light is...
Cant get enough impracticle science experiments ! Can you make a clock out of a tv set?
a better way to do this: get a light bulb (it is also a household object so this is the best thing to do)
drop them all into a cut off piece like a sleeve? i like it.
sweet clipper
Because D sized batteries are household items nowadays...
Haha, blurred out the batteries on the first shot.. then obviously forgot to blur later on xD
a light bulb that barely glows
if you wanted to you could let it burn just before it dies out, then light the candle and because there is no oxygen and the lead is thinner, it will glow brighter without burning out.
Thank you for making a lightbulb that costs me $20 more and can barely light my room!
for batteries it is easier to use paper to roll them in A4 should be enough. and in the platter you can use water to have a hermetic seal
well imo it seems like a good back up if the power goes out.
Light bulbs make incredibly larger amounts of light.
Now we can forget about paying our electricity bills.
Technically yes... But in Britain we call a cell a battery.
So, you censor the eveready batteries the first time they are shown, but not the next time?
Or you could just use the candle without the other stuff, save loads of money and get a much brighter light.
bacaue all the the oxygen was used up, that was the idea of what the candle was for, it was surposed to go out
bicycle inner tube works better to connect the batteries
For fun!
Why go through all that trouble when you have a candle sitting right there?
and more power? the graphite probably wont even glow with the amount of power they used.
how long would it take for it to suck all the juice out of those batteries?
if you put a lot of pieces of lead in at once, would it burn brighter because there is more to burn/glow, or the same because its the same amount of electricity running through it, or less because the electricity is being split up into each piece making each piece burn at 1/x (x being the number of lead pieces) times the brightness of just 1? or would they all combine their light making it burn normal?
Works better with the jar and lid, metal snips, and paper clips. (There's more but ehh...)
so, you blurred the brand off the batteries, but in the next take you don't?
It would just burn out in an instant.
Technically you are making a battery out of 8 cells not a bigger battery out of smaller batteries.
Water should be poured into the container to avoid oxygen from outside got sucked in.
Cells don't convert energy though.
Oh and the lead was 0.7 mm
didn't shine there at the end...
In my case my right ear enjoyed the intro.
I druther use the candle. I can't make myself do this because of the candle being there calling out: use me instead.
SIZE doesn't matta...lol
so they managed to hide the batteries make for like 30 secs then they gt bored i guess, lol
why would you need to make the lightbulb if you could have used the candle instead..
can u use a normal pencil? and sharpen both of the sides?
Only one way to find out without having to wait a year! Hint: Wood burns when it gets hot.
I like how they gave up on censoring the batteries
lol
Blurs the batteries at first and then show them as Ever Ready Batteries lol
Somebody has already said this and got a reply saying the British call cells batteries, but given that this Is a science video, the term cell should be used instead of battery as you should use the proper terminology on an educational video.
how the candle helps the graphite to be last longer? pls anwers this question because we need that to our experiment
because it... EXPLAINED IN THE VIDEO.
Can we use small size batteries ?
Not really I tried at most it lasted 5 seconds
Not enough electricity
Lufthansa Jetfriends is it ok if i use a plastic jar cuz im my country we dont hv the big jars i can nly fit the tealight candle but the lead i cant
*****
hater will hate.
what will happen if i plug the pencil lead to a 110 v outlet ?
it will well...
trip your breaker and probably destroy your socket.
can i join lead with normal wires ????
ur candle went out..
I tried it with a 9v battery but nothing happened!! :(
this was a great video y do u people comment iggnorant things ughhh
graphite!!!!!
Years ago i also did this experiment. But as power source i used a car battery charger. The leads all went \*boof\*
You're probably right, I have literally no clue what I said, copied it from wikipedia.
You try same that has tried at 1800s by many people.
She's all British and stuff
how is possible that at 00:03 the light became white?
i saw your msg and the time was 00:03am not joking.
Can a 9volt battery be used instead??
It did not work for me.
AA batterys have the same voltage as D batterys so why use D batterys
The D Batteries provide much more Amps than your regular AA Batteries
Try it out and see. After all "SCIENCE!"
O.K.
It doesnt work whyy :( i use ceramic pencil lead is that okay?
no because it isnt conductive.
A critic knows the price of everything, but the value of nothing.
Its not meant to be useful its a science experiment.
My right... =S I think you have your headphones the wrong way round... or something /watch?v=hTvJoYnpeRQ
Then tell us something better to use that is just as convenient
:L
i suscribed headsqueezetv,v sauce1,2&3,earthunpluggedtv,novanNg,wacky gamercom and getyogameon209
SHE'S SOOOOO ANNOYING!!!!
dosent work. I had just smoke thats all.
fake
not fake you didn't had high enough voltage for your lead