Know How... 101 (Transcript)
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On this episode of Know How we are going to show you how to dump your computer without breaking it. I am going to unleash the power of your network with supports and oh by the way, yeah, that is going to happen.
Father Robert Ballecer: Welcome to Know How it is the show where we build, bend, break and upgrade. I am Father Robert Ballecer, the Digital Jesuit.
Bryan Burnett: And I’m Bryan, the analog Bryan.
Fr. Robert: Would you do cranky hippo?
Bryan: Oh right, the analog cranky hippo.
Fr. Robert: Over the next hour or so we are going to show you some of the projects that we have been working on, so that you can take information back to your homes and geek out in good form. Bryan before we get to that, here in San Francisco one of the issues that we have is microclimates.
Bryan: Oh absolutely. It could be sunny here in Petaluma and then freaking cold in San Francisco.
Fr. Robert: Which typically is. I remember, because I grew up in the East Bay, it would be 110° in Fremont in the shade of the hill but then you would go to San Francisco and it was like 52° and foggy. That is not just that. There are so many different climates that go from San Jose all the way to Petaluma.
Bryan: Yeah, definitely. I mean it is the whole coastal region that we have here. The fog tends to roll in really quickly too and so it could be nice here and then you want to go have a picnic and it’s ruined by the time you get to where your destination is.
Fr. Robert: We grew up with, so we kind of love it. We are used to it. It is good that you know, that if it is too hot in Petaluma then go to a ballgame in San Francisco and cool off.
Bryan: That is what I tend to carry a jacket with me everywhere I go. Whether or not it is summer, there is one just hanging in the trunk.
Fr. Robert: Now as Eric is saying, “What’s up with that?”. Why isn’t it the same temperature everywhere? That is the point. When you look at the weather app on your phone it is giving you an average. So if you put in the ZIP Code for San Francisco it might give you the average for the region, which is completely not going to be anything near what reality is.
Bryan: It can vary a lot from mile to mile.
Fr. Robert: It really can. And so accompanied by the name of blue sky has decided to kick off a kick starter to build a device that could give you the power of whether casting, local weather casting. In fact they are calling it hyper local weather casting. The idea behind this is that it is a little station that is connected to Wi-Fi, in your network. It goes outside and it measures the weather, and it includes the picture of the sky. And then you share with everybody else who uses blue sky.
Bryan: Has a ton of little sensors packed into it because it can also do rain and it is like a solar panel attachment that you can do for this. And the thing that I love about this is that when I go to ride my motorcycle, some of the best roads are out at the coast. But like I was saying earlier could be sunny here in Petaluma and by the time you get to point rays or something it is foggy. So if I could just look that up on a WebCam or something.
Fr. Robert: Map out your track so that you know, okay at this one spot I really am going to need a jacket.
Bryan: Should I go as far as the data, no because there is fog barrier. But everything is great south of that.
Fr. Robert: It has, as you said, multiple sensors. It has a humidity sensor, a temperature sensor, a barometric pressure, UV exposure levels and of course precipitation. It goes for 20 days on a charge or, as you mention, you can get as solar panel attachment so that you can run indefinitely.
Bryan: Which is supercool.
Fr. Robert: Now here is my favorite part. This is actually the reason why we would get it. The hyper local weather, is cool. But the thing I really love, it does time lapsing. So if you wanted to you could set this thing up so that it would record a time lapse of what the Dave looked like over your house and it will turn it into a little movie and you can share it. You could just send it off to your friends and say this is what it looks like where I was, Sonny, a little bit of clouds it was beautiful.
Bryan: Well it is always a good conversation starter, right? This is what the weather has been like. How has the weather been for you? Let’s see the time lapse.
Fr. Robert: I kind of like stuff like this. This is geeky.
Bryan: It is. The only limitation I see to it is that it has to be on Wi-Fi. Some of the places that I want to know what the weather is, is kind of remote. Like some of those places out at the coast there isn’t a Wi-Fi connection that you can connect to. But, it is neat.
Fr. Robert: It is in the product and I think the reason why they went with the Wi-Fi is they wanted to keep the cost down.
Bryan: Absolutely. If they were to do some sort of like 3G or something…
Fr. Robert: There would be multi subscription fee, device expenses.
Fr. Robert: It would be a pain in the butt. but I would say that this could be the start of a trend of devices. At least here in the Silicon Valley. This is such a good idea, I’m sure people are going to say what else can we measure locally? What else can we build really cheap devices and mount them everywhere we live, and work and we gather data that we use as sort of crowd sourced forecasting.
Bryan: Crowd source data, just getting from different sources from all over. Especially an area like this that has so many microclimates and stuff like that. I mean the bay area is kind of tech oriented so I can see people just wanting to get this and put in their backyard and stuff.
Fr. Robert: I would get it just for the time lapse.
Bryan: The time lapse, yeah. Take it out somewhere and set it up and just leave it and come back for it in a while.
Fr. Robert: Now, disclaimer. One of the people who work for blue sky is actually a fiancé of Tony Wayne who is an editor and producer here. We don’t want to mislead anyone. He did not bring this to us and ask if we could do this on no help. I actually found it and then he said oh by the way did you know that my fiancé works for that company? I like stuff like this.
Bryan: It is not a shameless plug. But even if it was, we would still think it was cool.
Fr. Robert: And I am not above shameless plugs.
Bryan: Absolutely not.
Fr. Robert: But you know what isn’t a shameless plug? Eating.
Fr. Robert: Okay. For different reasons because for me, obviously, I need to lose a little bit of weight. And I kind of like chocolate and sweets a little too much.
Bryan: But there would be less of you to love, Padre.
Fr. Robert: Okay, thanks for saying that. I do appreciate that. But for you, it is because you need to eat healthy right?
Bryan: I do. I do be careful about what IE. Because I am a type I diabetic and so I get very tempted by some of that other snacks that we have out there.
Fr. Robert: Because I keep putting on your desk?
Bryan: That does not help. The brownies I find under my seat are not my friend, Padre.
Fr. Robert: Well because I wanted to do a Know How to stab someone with an Epi Pen or something.
Bryan: Oh, you want me to go into a sugar coma or something.
Fr. Robert: I saw Hansel and Gretel. You just have a needle and you shove it in your leg.
Bryan: It totally works that way, yeah.
Fr. Robert: Now we are not talking about needles. We are talking about something natural.
Bryan: Something more natural than needles.
Fr. Robert: Nature Box. Now we have had Nature Box on the network for a while. They have kind of taken over our snacks. If you go into the back room of twit and you go in our kitchen that you will see that where we normally had chocolates and a lot of suites, in fact I think gummy bears were there for a while. We have now replaced them with these nature snacks. They have no trans fats, they are actually quite good for you. One of the things I really like about nature box is the fact that once you sign up for the service you get to try a bunch of different things. Things that I didn't know that I would like. For example, my personal favorite right now are these Santa Fe corn sticks. oh actually pumpkin seeds are also really, really good. These are things that I wouldn’t try on my own. I would never actually go and say can you get me about the pumpkin seeds. But thanks to nature box I know that they are actually delicious, and if I am going to choose between eating chocolate or eating tests, I would much rather eat this.
Bryan: Oh yeah totally.
Fr. Robert: Go ahead and open some of that up. Now, nature box is a service that sends me snacks right to my door. So you don’t have to go get it, you don’t have to order it every single time. You tell them what you like and they will suggest things for you. They will allow you to create the perfect snack box. Here is ours. Go to naturebox.com/twit and you click the continue button to choose between three subscription options. Then you place your order. Once you remember, you can select which snacks you would like in your monthly box. And believe me, you are going to want to try them all. You can select by dietary needs, for example vegan, soy free, gluten or lactose free, nut free, non-GMO, or the fat-free, low sugar. You can also select by taste which is savory, sweet, or spicy. I never thought about this before. I always thought snacks were sweet. But, you can have a savory snack, you can have a spicy snack and I’ve learned to realize when my body wants each one. It is normally not sweet.
Bryan: And don’t limit yourself. You can mix and match. I’ve done that before. Or, but some of the sweet ones into a bowl with the spicy ones.
Fr. Robert: I like segregation of snacks. I don’t know what you are talking about.
Fr. Robert: Now Nature Box would not approve.
Bryan: I do not discriminate against snacks, Padre.
Fr. Robert: You can also get a snack that is guilt free with things like the coconut date bars. I haven’t tried those yet but I hear they are actually pretty good. And their pineapple rings, the dried pineapple rings are exceptionally good.
Bryan: I never get to try them because… wait. Do you eat them all?
Fr. Robert: They are in my desk. I have like four packs. Lisa gave them to me, so they are mine.
Fr. Robert: So try it today. Go to nature and try it out. In fact if you are going to try to go to naturebox.com/twit and see if maybe this is going to replace that jar of cookies that… where you going?
Bryan: We get to keep this right?
Fr. Robert: The jar of cookies, the pantry full of chocolates, pretty much anything that may be bad for you go ahead and replace it with a Nature Box. Make sure to go to naturebox.com/twit and stay strong. We thank Nature Box for their support of Know How.
Bryan: Don’t be just hungry for knowledge. Be hungry for snacks.
Fr. Robert: No, don’t be hungry.
Bryan: Kill the hunger. What is next Padre?
Fr. Robert: We promised a little something something for the folks at home. We promised that we were going to show them how to unleash the power of their network. Specifically how to access multiple devices behind a firewall. This is a pain in the butt.
Bryan: This is something that anyone with the router can do, and have access to a ton of different devices. This is pretty neat when you are showing this.
Fr. Robert: I know that you have experienced this before because you were trying to do some gaming and it is difficult because you use DMZ, right?
Bryan: Yes, which you then told me was kind of a bad idea.
Fr. Robert: Kind of a bad idea. But we’ll get to that a little bit, but let me show you really quickly what we set up here. This is actually representing what the Internet looks like. So we have kind of mocked up underneath this desk, a router that is giving us a net address. 192.168.1.1 That is then going into this. This is like your home router and the router underneath is acting like the Internet. So we are mocking the Internet, because we didn’t want to show the people our real Internet access.
Bryan: We have to be a little careful about how we do things here.
Fr. Robert: Then we thought to laptops. We’ve got this laptop right here which is on the inside of the network and we have a secondary laptop here there is outside of that router. Inside the network we've got two cameras. We've got this camera and we’ve got a thermal camera that we are going to show you later on. This is what our network actually looks like. So you’ve got the laptop that is on the Internet, then you've got the Internet, then you’ve got a router with an external address of 192.168.1.135 now you would never have that address if you actually had an Internet address. That is a non-routable address. But we are pretending it is. We’ve got our router. And on the inside of our router we have an address of 192.168.200.1. that is the internal gateway. Connected to that, we have a switch which then goes to the laptop that is on the inside, it goes to the visual camera and then it goes to our thermal camera. That is at 192.168.200.201 and 200.200.
Bryan: now you went in and manually set those numbers right?
Fr. Robert: You could make it dynamic. I am kind of an old hat and I like to have things static. In my mind I always put cameras in the 200’s. I probably shouldn’t have told the internet that. Now if you are ever on any of my networks and start scanning the 200 range you’ll find my cameras. We’ve got two cameras here, this is the visual camera that we’ve got loaded up. this is a megapixel camera that I have been running in my lab for a while. It is an IP camera which is kind of cool. It is connected via the network. I want to be able to access this from the outside world. This this one is a thermal camera, which is kind of cool. This only sees thermal energy, it only sees IR. Which is actually cool. Because it sees only IR we can take this kind of compressed air which looks a little bit black and if I do this, I can suppress my thermal image. This is a camera that only sees thermal energy, turn off all the lights and it looks like this.
Bryan: Do you hear something clicking Padre?
Fr. Robert: So that is not with the episode is about.
Bryan: We you accessing this as if it was on a local network?
Fr. Robert: So what Alex connected to what is a laptop that is inside the local network. That is what I can see both cameras. The problem is, when I want to see that from the outside world I am going to have issues. Let’s take a look here. This is DD WRT, a very old version. Which means all the new versions have better interfaces. But if you look up here you know that I have the external address, 192.168.1.135. again I know that is not a real address. But we are pretending and if you wanted to hit this router from the outside world you would have to type in 192.168.1.135. now, let’s say that I want to open this up. I want my cameras to be visible from the outside world. The way that you would do it, is this. There is normally a setting called applications and gaming. Up here there is a tab for DMZ. DMZ is a demilitarize zone. which basically means any time someone hits that external address, 192.168.1.135, it is just going to forward all the traffic to a single device in your network. You can only have one DMZ address. So if I go ahead and enable this it means that if I type in 192.168.1.135 on the outside network it is…
Bryan: Forwarded to that address right there. And then all the ports will be open?
Fr. Robert: All the ports will be open for that one camera. Switch to my other laptop and what you will see here is, this is a laptop from the outside world. I am going to type in 192.168.1.135, so I am typing in the address of the router. If I do this, what I get is I get the thermal camera. So now I am open to the outside world. Here is the problem, that works but it is not secure. And I can only do it for one device.
Bryan: You want to open this up so you can see it from all your cameras.
Fr. Robert: All my cameras and maybe my gaming devices, it may be my storage. Like if I have a Pogo plug that I want to access manually or maybe a Plex server that I want to be able to access without buying Plex service. I would need to open up more than just the DMZ in order to get to all those. Either that or I switch the DMZ back and forth manually. I’m not going to do that.
Bryan: Cool. So you don’t have to use special software for this? This is like going in manually.
Fr. Robert: Now I am going to go in and turn off the DMZ end that is going to die. So, there needs to be another way and there is another way. Because we have these things that we call ports. Ports are actually what does the heavy lifting. That is how things communicate on the Internet. When we think about the Internet that we use, there is really two protocols. There is TCP and UDP. So TCP is a session controlled protocol it is called transmission control protocol. It would be like I want to give you data, I call you up on the phone….
Bryan: And I answer the phone.
Fr. Robert: You answer the phone.
Bryan: We confirm that we are talking to each other.
Fr. Robert: Right, so I say I would like you to call up someone at 555.555 and you repeat back to me. So we know that the data has been transmitted correctly. There is a another protocol called UDP which is user data protocol. There is no connection.
Bryan: That is just use sending information and there is no confirmation or anything that it was received.
Fr. Robert: I bundle up all the data in a packet, I send the packet out into the network saying this is where it should go and hopefully got there. Because I don’t check. There is no error correction.
Bryan: The advantage to that is there is not a lot of overhead.
Fr. Robert: Exactly. Because when you have a session, you have to communicate back-and-forth to make sure that the data was transferring and is not corrupted. UDP is just hey, hopefully you get this.
Bryan: Would it work for video and audio? And if you lose data on audio or video it is just like a blip? That TCP would be better for a file?
Fr. Robert: Anything that you can’t miss any piece.
Bryan: And if you don’t want your data corrupted.
Fr. Robert: It is more complicated than that, but that is essentially it. Now, with TCP and UDP every Internet address there ever was has ports. Specifically, it is a 16 bit address which means there are 65,536 minus 1 because we don’t use zero means there are 65,535 possible ports for each UDP and TCP. When we type in the browser uses port 80. That is support that we use for each TCP for the protocol that is the Internet. So you don’t have to type that end, but that is what is there. Here is the thing, though. We can tell browsers and we can tell applications to choose a particular port and then we can assign that port to a particular device. If you go back to my drive here, what it means is that even though there is only one address, 192.168.1.135, I can tell the router if something comes than on port 10,000, go there. If something comes than on port 10,001, send it there. And that is how it works. Now let me show you on my first laptop here where I’ve got a couple of port forwarding rules that are already set up. The first 1024 ports are reserved. So it is really like 64,500 and some. But you still have a ton of ports to play with. Like FTP is port 21, SSH is port 22, SSL is port 443, if you have…
Bryan: Now the really important ones for gaming, this is how I learned about port forwarding was trying to get my Xbox to work online.
Fr. Robert: Unfortunately for people who try to do this they only forward one port. Xbox uses multiple ports. It is port 88, port 3074, Port 53, Port 500, Port 3544, and port 4500. You will notice in the protocol that some of these are uniquely for both. So if you look up the specs, they will tell you what you need. This is what is called a straight over for. So I am forwarding port 21 to port 21 on some machine in the network. And I’m doing that for all of these. But there is another type of port forwarding which looks like this. I am going to add a rule and I am going to add something for the thermal camera. So thermal, and I am going to say it is coming in on port 10,000. So traffic that comes in on port 10,000 is going to automatically go to 192.168.200.200 which is the address of the thermal camera. But I wanted to go to port 80, because remember port 80 is the web address. So I am going to save that and then I am going to add another one for the visual camera. So let’s add one, for the visual. And this time I am going to say port 10,001 and I’m going to send it to 192.168.200.201 and also to port 80 because that is the Internet. So, now that I have this rule set up, let’s see how it works. Okay it is good. Now switch to this laptop and remember this is the one that is on the internet. so this can’t see anything except what the router is offering. So now if I jump in here and go to 192.168.1.135, if I do this it is not going to do anything. There is no DMZ since I turned it off. But, if I tell it go to 10,000 and now it is going to go to the thermal camera.
Bryan: I hear that clicking noise again.
Fr. Robert: Run! but we did this before with the DMZ but now I can open up another window and I’m going to type in 192.168.1.135 port 10,001. And this, gets me to the visual camera. So now I have access to both of my cameras from outside of my network.
Bryan: So theoretically you could have 65,000 and something… more cameras than you would ever need.
Fr. Robert: If you have that many cameras in your house you should seek professional help. we get this question all the time about mine craft. If you want to run a mine craft server inside your house, you need to put it on port 25 565 and you have to port forward that to whatever the device, for example 192.168.200.66. That is mine craft server. And you’d have to give them the same port. this works for everything. We always get people saying I just set up a NAZ in my house had a way get it from the outside? Do I just turn on the DMZ? No. Because if you do that you are letting someone from the outside hammer your device and all the possible ports and if something is open you can take advantage of it.
Bryan: Right. And you were explaining to me that it doesn’t matter if your PC has a firewall, that if something on your network gets infected then it is on your local network.
Fr. Robert: Exactly. With security these days, you are probably going to be okay. But, why do it? Why forward all the ports to a single device. If you could just give it the ports that it needs. Give it the ports it needs and then everything else stays closed.
Bryan: That was not as painful as I had first thought. I remember you showing me that.
Fr. Robert: So if you do have a router that has port forwarding, and every router has port forwarding, and you want to access your devices from the outside world now you know how to do it.
Fr. Robert: Now when we come back, we are going to show you a little bit about dunking your computer and letting it run.
Bryan: That’s not a good idea.
Fr. Robert: Ready? Wow, that was a good trip. Everything on the table has changed.
Bryan: That was quick.
Fr. Robert: That was strange. Okay, so we’re doing a little something something. Remember we talked a while ago about Novak.
Bryan: Very expensive.
Fr. Robert: Very crazy expensive, But very good for cooling. It is good at thermal conduction. So what you would do was you would use it in like sealed server racks with a lot of blades to pull the heat away from the components so you could do away with air cooling.
Bryan: Completely submerged hardware and so that is why we bought like 5 gallons of it. We got access to Leo’s…
Fr. Robert: $4,000 worth. No… there have been ways for people to cool with liquid in the past. In fact, this is from Alex’s set up. This is some of his coolants, computer liquid coolant. it is just water but it has a few additives in here so that it doesn’t mold up.
Alex: I think the key ingredient was glycol.
Fr. Robert: It is basically anti-freeze. But then you also need things like this. Hold on to this because this is heavy. That is the radiator assembly. That is how you would get heat out of the system. As you are pumping liquid through your devices and this is how you would get the heat up. This will fit onto the CPU. It is a water block…
Bryan: And it will pump the fluid through.
Fr. Robert: and then it would eventually run through here. So you needed a water block on all the major heat sources. So the hard drives, the CPU, the video card, it may be the chipset that is on the motherboard. It is a cool system. In fact, Alex, do you have any pictures? I loved playing with this stuff. It is fun to play with, it is fun to tinker with. But as you experienced it is a pain in the butt right?
Bryan: It is a mess to maintain and unless you are doing some over clocking, it is not that much better than just using air.
Fr. Robert: The other problem is that you need to have a cooling block on anything you want to cool. Because that is how the heat gets removed. And since you don't typically have a cooling block on everything, there is still heat being generated. You still need to have a fan in the case, which kind of defeats the purpose of having liquid cooling in the first place.
Bryan: So you wanted to go all out with liquid cooling you would just submerge the whole thing.
Fr. Robert: Which is why we were talking about Novak. Know that could allow us. If you look at the computer this is the computer I built over the weekend. It is playing a little video, it’s got barely enough power to do that. This is really scraping the bottom of the barrel here. But we could put know that right into this tub and then put some sort of… actually the problem with the surface area is that it would be radiative enough that we wouldn’t need anything else. No cooling fans, nothing. know what allows that to happen is the fact that that liquid is what we call dielectric. Which means it does not conduct.
Bryan: If you tried water it would short everything out.
Fr. Robert: It would be the shortest experiment ever. Actually if you want to see what happens when you tried to cool directly with water, look for Leo Laporte liquid pel iPhone, because that is basically what happened. when we do this with a dielectric fluid like know that, which is specifically designed to do cooling, the heat gets pulled away from the components and because Novak has such a low thermal retention rate it wants to give that heat back. It wants to keep it out. So it will conduct it straight off the components into whatever radiator you are using to quote your system.
Bryan: It will transfer the heat away from the source.
Fr. Robert: Before know Novak, there was a fluid also by 3M called Fluorinert. Actually Fluorinert was used as a plot point in the Abyss. You can actually also super oxygenate it. You can attach a bunch of oxygen molecules to it and you can saturate the fluid and breathe it. In the Abyss they used it as a plot point the idea was that you could breathe it so that your lungs don’t compress. This was real. They actually did that. They really did put rats and the oxygenated Fluorinert. When Ed Harris did it it was a special effect. Because humans probably wouldn’t be used.
Bryan: It would be a frightening experience.
Fr. Robert: They did testing with it and what they found out is that it would work, but once you get the Fluorinert out of your lungs you still have what is called dry drowning. Your lungs would actually pump fluid into your lungs and then you would die.
Bryan: Well, thank goodness this machine doesn’t have lungs and we can do it to that.
Fr. Robert: Now we could do it with Fluorinert, which is not as good as Novak but it is still Pretty good at pulling heat away. But the problem is if you buy that it is about $1500 or $2000 a gallon. You can get it for about $300 a gallon if you don’t mind it being used.
Bryan: Wish it could have but…
Fr. Robert: I would not do that.
Bryan: Well you were saying too that you want to make sure before you even attempt this is to clean the hardware is best as you can because if there is any metal particles that could float from the surface and then make a connection it will short things out.
Fr. Robert: I’ve gone over this computer thoroughly with a soldering brush just to make sure there are no particles hanging out. Also, know that if you submerge your computer and liquid a lot of these things like the stickers use solvents. It is going to break down and peel off. Just be aware of a few things you are going to do. Now, we know that theoretically dielectric fluids shouldn’t conduct electricity, but they will conduct heat. Theoretically. Mineral oil is a dielectric fluid.
Bryan: And it is a lot cheaper.
Fr. Robert: It is a lot cheaper versus $2000 a gallon. And this is $25 a gallon.
Bryan: The tradeoff is that will retain heat.
Fr. Robert: It retains heat a little more, so it doesn’t readily give it off. Which means that if you want to use this for some extreme cooling you are going to have to have a really good computer. Now we haven’t actually tested this yet. It is a mild laxative.
Bryan: It says for animal use only. So should I not have been putting that in Jeff’s coffee?
Fr. Robert: It lubricates the intestinal track. So theoretically, we should be able to port this entire container of mineral oil on top of that computer, submerge it and it should continue to show Ghosts in the Shadow.
Bryan: That is Know How for you. Let’s see if it works. Are you going to do the whole thing?
Fr. Robert: Yeah, why not. Okay, here we go. I don’t want to hit the fan.
Bryan: Easy, easy Padre.
Fr. Robert: Are we still showing some activity?
Bryan: We’ve got some steam coming up. Well folks, that is a visual effect. We are okay.
Fr. Robert: Here we go. That fan is going.
Bryan: Even the USB is submerged.
Fr. Robert: That is a gallon of mineral oil. This is what I like: look at the fan. The fan is still going. It is actually going. So even though the fan is under the mineral oil it is still going. This is cool. It can agitate the oil, because you still need to agitate to get the heat spread around equally. That is cool. So theoretically it works. And guess what? In actuality it works. Now, we are not going to put a rat in here. Now, there are a few things we should say about this. We are actually going to build ourselves an aquarium PC. We are going to do it with a much higher spec motherboard than this. This is like an atom processor, it barely has enough power to run. But we are going to squeeze a lot of power into this thing, we are going to see how fast of a processor we can get away with, without putting any serious cooling. We wanted to just radiate through the sides of the tank. The other thing to remember about this, is that it is cool but mineral oil is very fine and it stays on everything.
Bryan: So basically when you do this you are not going to undo this.
Fr. Robert: The other thing is we will eventually put this power supply in it. Dielectric is dielectric. It’s going to work for AC or DC. The only reason why we didn’t put the power supply in here is because this isn’t the finished thing. This is our nice power supply and we didn’t want to mess it up with mineral oil.
Bryan: It is still going.
Fr. Robert: It works just fine. So folks, what you want to do is go home and find your parent’s computer, dunk it in mineral oil and tell them Padre SJ said to do it.
Bryan: Don’t try this at home.
Fr. Robert: I think that is about it for this episode of Know How. Alex? When I see that on the screen I think that something bad happened. Next time I think we are going to be giving you a little update on our C project. It is coming along quite nicely. If there is anything from this episode that you need more information about, either the ports are how we did this little trick with the dielectric mineral oil, be sure to go to our show notes. And where can they find those?
Bryan: They can find those at twit.tv/kh. And that is where all our past episodes live too.
Fr. Robert: Going ahead and jump on over and find out what we have been doing by visiting our show notes. The other thing you want to do, is you want to join our Google plus page. It is a fantastic place for you to see what we’ve been doing, what we’ve been messing around with and also because we’ve got 6500 followers. They are the geeks. A gaggle of followers. Who will geek out with you. They will be willing to give you a bit of tipage if you ever run into a brick wall with one of your projects.
Bryan: They are able to answer the questions a lot quicker and better than most of the time we do.
Fr. Robert: You will find that at gplus.to/twitkh. you can also write us an email, go ahead and send the emails to and we forward all those to Jeffrey Needles. That is where they go. Also you’ll find us on Twitter right? Bryan where are you?
Bryan: I am @Cranky_Hippo.
Fr. Robert: And I’m @PadreSJ. Go ahead and follow us and find out everything we do each week. I’m Father Robert Ballecer.
Bryan: And I’m Bryan Burnett.
Fr. Robert: And now that you know….
Bryan: Go do it!