com so what we're going to do we're going to make a car that lights up so what i have is a very simple card it's just we just got a piece of paper and we made a circuit inside so look at the circuits very simple circuit it is i'm using copper tape and here is my l e d s you see on the out right here this is the  inside i have my copper on my circuit and then i attach a battery and then over here is what i use to close the circuit up that's what you have to be careful when you when you make an actually a card for that you want some to light up is whatever you have that closes the circuit and i tell you have gone through several where i made mistakes because it has to be big enough to close the circuit and it also has to be the right material so i just use copper tape there too and the battery sometimes you can actually cover this whole thing but i'm showing it today so we're actually going to make one together so one of the things i think is better you can do you actually press here you can put a press here on it so when somebody is actually what you want to live that you can tell them when to press so this is a very simple card i mean q i know they're all christmas thing because i'm making them but i'm doing this during the month of november which may not be the time we show on this but you can actually do a birthday card you can do anything just dealing with using the elysee not this what i actually put press here on one on this one so you tell people to press and lights up really cute right ok so let's start shouldn't take too long but we want to make sure we start out my tree see another one and i have press here too on this one so i just did it and i just so you  and i have to say i am not the best but i always say engineers are artists too and technology artists who just sometimes show our skill set is something different actually when i first started out i always wanted to be engineer and that was  goal when i was young kids i just tear things up and put back together and it was fun to do that and as i got older i start liking other things i've written several books and because i like the whole that part of it too so one of the things when you're in technology and i've said this every time i love this say to get into an era and you have to do whatever you design whatever you create has to have two important things too and one is it should look nice and it should be easy to use so in that the looking nice is part of the artist component of it because if it doesn't look nice no one wants to buy it and it's not easy to do you probably return it so let's start cardboard very simple right this is actually just printer paper it's a lot heavier make and then i'm going to design something very simple because of course i am artist but hard i don't have some skills of the people that so i'm going to do something very quick and i'm going to do a circle some to what i just did and i'm going to put a light so i'm so put a circle here on top another circle maqam go through a door as nice as what you here i just want to show you how you can make this right so if you are very serious are this you're going to do something a lot prettier than what i'm doing when but if you want to make something just i did a i think so i have a circle here so i know all the other side that's where my lady is on the come so i open this up not i'm going to build my circuit so what i do here is i feel this i actually draw in my circuits first so i know what i need to do i take a pencil and i look at where i have that circle on this other and here and i just put a circle here that's my easiest time ago and remember if you have been with me the last couple of shows you confuse was over like this so the space i have is a space i want to close because in a circuit has to be a complete circuit which means it has to be closed by the open circuit it's have press here so they know where the press and also the same thing with this is on the other end here when you close the circuit so now this i did a little different and i might do that here actually actually raised it up a little bit so was easier to do this really up to you what you wanted i think you should play with it for us so let's just do a simple circuit then what i do as i you'll see a ruler because i want to know what's the space between this and why i made the crease so i come here and i measure it now i'm going to use inches or and you can use meters or centimeters up to you but you just want to measure it see come here you measure it and if i measure this this is about  over an inch right here so what i'd like to do when actually this is one of my favorite rulers i use with my kids because i like to show the hole that no one you have a eight for this when you get to one and so in between there's eight pieces so flight eight eight makes one so i have right here this is one two so i'll say one in two eights is what's between the two psi want closes so it's right here again just to make sure we measured it right you want to come here you know over a little bit over a one inch and i have one engine to eight and i'll come over here little line from here all the way over from here a little bit above that and what i'm doing again it's i have to close my circuit so the goal is always a close a circuit right so you want to close it like this so when you put on whatever you put on this side have to close the surface or compress then the surface close so all it is a very simple circuit so it's easy for kids to use i'm actually look at that now there's some glue that i can use and i'm or it's paper that i'm thinking about using next time but right now use copper tape so the way you do this is you want to make sure the tape is smoove after you finish because that's an important part of what it is because you don't then you have problems with the the circuit itself so i come i kind of measure it off how much i'm going to and this is what they can it's called electric are now so it's very neat i'm actually looking at another not so much l e d's but some other things out there which will be another show all have to do so if i come here i'm going to take this had no fingernails i actually cut mine all the time when i was younger i used to have moments but as i got older there's too much in a way such when you're working in the field doing a lot of different things it's hard to keep nice i mean i could cut it in like a put it on it but with this tape the tape or some really depends on where you get the tape from sometimes pick doesn't act the way you want to so what i do is i come here and i make a little corner so i come and make that i make a little corner and i'll show this it might be a little hard to do  i did this in my class this past class we had we did like we did this we did cards and i have to say it was interesting watching my kids do it because they understand the whole concept circuits because they've done the l d with the bread for the native excellent job with that only came to make them a car that was harder for him so just translating that to this was a low difficult and what i've decided it would be easy if i'm going to do some pre made card so they can just you know the circus already drawn in it and they can just come by and do it so that's what my kids on next friday will get this for the end of the class is just a little container that has the card in it now i'm always i like to make sure this is neat but actually what i do afterwards because that's an important part of it ok so right here i cut it because i'm going to put the battery down ok so what i do then is i take i kind of smooth this out because this tape is really i said sometime i would do all this work and i can't get it to work for anything in this because somewhere because if you break this tape like you have a little a little section of it where it's this disconnected it won't work and i've done that war is a hope it doesn't happen today but i've done that where i actually you know create a nice circuit i was a beautiful and i didn't see were i heard it or something and so it's not it's not continuously everything's not connected so that causes an issue and i come back and it's move it out to make sure everything looks good even the corners ok so that's my negative side and when we'll do now is i'm going to put the battery on so with this i actually take glows and i take a little bit of blue and i put an eye on a little drop on each end and i'm going to actually  the negatives when we face and down so the negative this is the negative section just remember on that we have positive we have a negative and the way it works is the the flow we're going to put this on the flow of drops and then i would put this on it so you know just give me extra protection i have them here they're not fall and i actually put tape on it to sell them an extra protection so let's put this on right here  that should be a good connection ok so we have that part so let's continue with our tape i still have some left on this so let's finish this up now one thing i always have to be careful is when i draw this out i sometimes make the mistake were what i did here is i have this a little bit away from and when i actually do this over a little bit so that means my measurement might be off a little bit which means i'm with the make this little wider at the moment to do something like this with it ok so now i'm going to use this to start the positive side right but we're going to do that for us it's better always to put your circuit down for us and then do everything else with it so come here and i just do this i make them the the little you know i get to the corner and make another little but if it doesn't work i'll say do as i see not as i do because it means i made a mistake somewhere but it's very simple and what i usually do and i don't have with me and i take my imo to me to find out what's going on and i bring it with me t and that's ok so looks pretty nice so far right so let's finish up this and now we will actually so we have one part of the circuit the bottom of the battery and now we need to actually attach the top part so what i do is i take this and i just take a piece and i put it up here on top the battery that's kind of secure is the battery too and hopefully i didn't move the battery too much so it is still touching the other piece of the negative because if you move the battery you have to have a value on top of the other copper wire that's underneath here because members a closed circuit everything has to be connected everything has to touch so go here this and then we smooth it out put something nice over here and you can actually cover this up too but you want to still make sure the connections there so that's something to think about so i'm going to use my l c d and it really doesn't make a difference which  to make sure it's working that's the important part of it so what i always do i mean they knew this should be any problem however i use my ellie's in my classes and i just hand i just have my kids just go by and pick out one so sometimes they pick out the test and they put it back in or sometimes there's say they have a problem with when they put it back in so i like to test my first because of the fact that you know it's well used in i don't make sure that one of the things i have said i got this i think from  i think i've got this on amazon these and i actually like this this set is really nice because you can see it go through and it tells you the colors which is good though after having the class and use it in my class myself get all mixed up but it's nice to begin just to know there are colors and again i think i stress this and i loved the mention is that when you have the white l e d s which is so nice is that the color actually comes from the elements that they use inside the semiconductor and so the  the voted the load that they use and on the circuit really depends on what elements they use and to get the color so for example red is between two to two point two votes which is great right and if you go down to blue blue takes more it's three to three point two which is you know very nice so since if you're doing a circle you're just trying to show a simple circuit you would take the voted that you have in the circuit so i could do the three boat and often would take that something broader simple orange let's try to launch now whenever i do this kids love to see the different colors and i think it's good because it teaches them you know again l e d that are positive and negative if you look at it so what i do with this is you i remember i put the plus and i'll show it again i put the positive on this side and i put the negative on that side and i did that because when you put your l e d and you have to make sure you're positive is on the correct side because we do th and now you have to be careful with this again i like to look at it in this to make sure and i stick it through now one thing you can do you can actually use scissors i have a whole puncher that i also use to and it really depends on my are you know the pull to the fingers is a whole issue and then it's something that we don't want them to do too much of so i just give it a little clips you know make sure it doesn't clip the the tape so take it and remember we have to go positive the right way so we push it through this so right now i have the wrong way right because i said the positive was on the other side and i have when it's not working like the best way of learning i think one of the things that sometimes we think everything should be perfect and they should do things perfect and then a work that's been tested but the way you really learn is what makes a mistake because then you have to analyze you to figure out what did you do wrong why isn't this work in the right way so sometimes it's better just if i see a student i have that i see them making a mistake and let them make it i don't stop them because i want to see what happens after they make it so i've been down you can tell positive here negative here now i could do it like this but this doesn't work well because you want to make sure there's a good connection between the two and i'm telling you right now  top so first you lay out and then you take this on top tape and on top you don't have to go too far but you know it's up to you how you want to do that just take that on top i actually just do i just call a bit past  promise and then i i'm going to actually use my sibs a few minutes to move it down to remember we don't want any surprises which we will get then we take this and we're going to take it on the other side move it out nice good job making sure you know that the l e d touches the copper because that's when the reason you put the tape on top and on the bottom because you want that connection because you don't have the connection is not going to work ok so the next thing is actually to do a piece over here and i'm going to show you this because this is what i did so i actually did it here and i made it a little bit bigger this is the one actually i think it's a much better one this was the i think i spent more time in my design of the tree there this would have been more time work it so here what i did is i made a little wider so when i close it i know i had a good connection so the same thing you want to do here you want to take that you want to take the take and i see you want to put it here so you can do two things ways you can actually  i i did a right i raised it up here so when i say press here there's no problem but this one if you look at it i didn't raise it up so it takes a little when i think print the i got to be exactly at the press exactly where i tell you to just putting that lame it down and then you do first you can do a test just by making sure that there's no problems with the connection like this all you do is make sure you get that circuit right in the you do that by putting it together