 I could use voice if you want. I'm just at home and there may be other noises. So I was mostly doing it by text depending on what you prefer. Maybe I'll do text and then voice. So does anyone know when Pi Day is? Most of these are kind of funny. They're just dedicated like pies for Pi, that sort of thing. So they took it in, oh, light at heart. In fact the whole exploratorium, except for a couple ones, are they're serious subjects but at the same time the exploratorium is a place where people go to find out about science and it's fun place. So you can see the one with the pies and you can see Pythagorean's theorem there demonstrated. Oh, thank you, human. One of the reasons why the Pi exhibits are in the center here is because Pi is so central to our lives and to not just mathematics but to everything around us. There's so many different possible ways to in our lives where Pi takes a part. Let's see. Here again we want to see what I want to do is just to do a brief tour and then you are most welcome to come back and explore and to come back to the island and explore. This is one of my favorite places in all of Second Life anyway. So I'm going to wander over toward the edges and then kind of do a clockwise tour of the island. For you guys that now does this work because before you guys that have been coming to the exploratorium for years, you'll remember some of these exhibits. Unfortunately a couple of them don't work anymore and I'm distressed about that. This used to be a wonderful exhibit right here. See if somebody, see if it works, somebody try it. But this was a very, can anybody guess what? If it doesn't work, can anybody guess what it did? The scripts, yes, but unfortunately one of the reasons why we're visiting exploratorium today. Yeah, chain reaction. It used to actually, this is very clever, somebody programmed this and they made multiple little mouse traps with balls and it actually works with the physics engine and when you clicked on it the little balls went up in the air and then they pop. In other ways, all they did was one trap. It would set off all the rest of the traps and it was most interesting. Yes, kind of like chain reactions. Very interesting to see. Now, one of the reasons we're here is because if you like some of these ideas, take pictures of them, try to get an idea of what they did. This is not a difficult script. We could read, produce this over at Science Circle. If you can find the script, in other words, get into the object itself, feel free, but this is not a terribly difficult one to recreate. It's a very good idea. Like I said, with a little bit of, since there are replicates, in other words, it's just one object of multiple replicates. If you create the mouse trap itself, it's not difficult to spring. I can think of a way to do the script. If you like this, we can try to do it ourselves. As I said, one of the reasons for being here is to see what marvelous exhibits there are and to try to preserve them, either by copying, if possible, or to reproduce them ourselves. I'm going to go clockwise now. This one is an excellent exhibit that was well researched. It's not just the big building, it's the other exhibits around it. Each of these posters are part of it. What it is, is to demonstrate what a nuclear reactor is. Yeah, excellent. There you go. There's a good link and stuff. But it's an excellent way to see what a nuclear reactor is and both the social and physical ramifications of having nuclear reactors. This was built right after the catastrophic earthquake and tidal wave and such in Japan. Yeah, if they're in mesh, then they won't take up quite as much space, obviously. But feel free to look at some of the posters now and to come back to them. This is an exhibit you can easily take some time at yourself. Some of them are dynamic. You can actually see what happened with the earthquakes. Okay, what I will continue to do here again, this is just a brief tour, so it gives you an idea of what all there is to see. This is an incredible space, exploratory. There's much more than you can see in an hour. So let's keep going around. This is a fairly recent exhibit and it's similar to the chain reaction where it shows critical mass. So this one may still work if anybody wants to push. It says push to fire. There, somebody want to try that? Does it work? Okay, so yeah, we'll do them in mesh. Okay, but exhibits like this here again, it's being reset. Exhibits, it doesn't seem to work the way it's supposed to anyway. Let's see. Now notice that when they say critical mass, we can always have some, let's see, reset, push to fire, firing. Okay, there we go. Okay, now notice it is working. What you see here is of course scientifically, if you only press like 25, the reaction is going to not progress to a critical mass. But if you have 100%, there's going to be enough of the, in real life, neutrons to be able to make other of the atoms shed neutrons and then the whole thing will become a critical mass, much like the mousetrap exhibit back earlier that we saw. Okay, here again, this is only a tour. And so we're just going to go around and get a sampling, a appetizer for some of the types of marvelous things there are. In fact, right behind us here, there looks like a big comet or star. I'm not sure what this is. If I click on it, I can see that it says it's a new sun. Okay, it's got a lot of particle effects. But one of the exhibits here, let's go over to the far edge. I'm going over to the other sun here. This exhibit over here is one of the larger exhibits on the island. And what it shows is, it shows the, whoops, I'm wandering off into here, is what it shows is the distance between planets. You can read it says, this is a scale model of the sun, the earth, the moon, and other planets. And you can follow the light. It goes all the way across the entire region, the sim. They've got some marvelous particle effects, reproductions here. But if you follow the arrow, in fact, I think we might do that. Let's go follow the arrow and, or the little yellow arrow, and we'll see other exhibits along the way. So we follow down this way. You can see, for example, the earth and moon here if, okay, okay, this, this one here along the way shows the sun and the moon and what a solar eclipse looks like. You can see the shadows. So you can see the sun there. And then the shadow, the sun sets. You can see the backside of the earth and its shadow. You can see how the shadow is cast on the front side of the earth and creates an eclipse. Here again, some very clever renderings, very clever models here to give you a good idea about how that works. If you continue along, I'm going to continue along the Sun to Planets exhibit here as we go down this side of the, yes, the penumbra and umbra, exactly good. Please provide the proper terminology. Some of these smaller ones here you may have to come back to to fight because we're not all going to fit on this. But you may have to come back to this is some of these are just little games you can play for people that enjoy being here. Okay, I'm going to continue walking down this way. Follow where Tolliver is going. Okay, honors, what do you see here? If you actually look at the panel, you'll see a tiny little dot, a tiny dot. In fact, if you didn't, yeah, probably Mahjong. Now, if you didn't see the text above it in red, yeah, very, very small. That's the actual size mercury would be if the sun were the size it is back there, that big fiery ball that we had back at the end. So, mercury very, very tiny, also very far away. Now, if we continue down here, what are we going to follow? What are we going to see next after mercury? Yep. Okey-doke. Just trying to be interactive here. So, if we follow down here, don't go in the water, you may have to skirt the water here. But if we follow down this direction, we're going to be seeing Venus. Before we see Venus, there are a couple other things. One is, I don't know what this bridge is. Maybe somebody goes down there and reports. Tell us what's going on. That's a fairly new bridge. I haven't seen that one before. Okay, where is Venus? Oh my goodness. Venus is down along here somewhere. I do see one of the other things out in the water. Somebody has changed the exhibit a bit. If you zoom in on it, it doesn't say, it does indeed say Venus. And Venus is kind of reddish-looking, orange-ish, at least in this depiction. Now, Venus is bigger than Mercury. Venus is about the size of the earth. It would be a twin if it weren't so close to the sun. Anybody know if we can visit Venus? Well, I guess tech would like to Mars. If we wanted to go to Venus, what would we find? Yes, it has. The Russians visited there. We visited there. Oh, the bridge. Oh, to the edge of the flat earth. Okay. That's funny. Some new boats. I have no idea whether you can get in these and drive them around ourselves. Now, what else should we see here? We should also come to the edge of the region. Venus, what should we see next? Very closely down there. You will see a couple more little tiny dots, very tiny dots that represent, and, oh, hey, it's got the actual terrain. In other words, somebody has put a texture on that little tiny dot that's earth. Yeah, and the moon, if you look right near where the text is, is an even tinier dot that's the earth, and that's the actual relationship that you'd see with the moon and earth. It's kind of amazing that the moon and the earth just happen to be the distance they are so that we can have a total eclipse. Total eclipses, while planets are probably pretty common in this universe, we know that there's thousands around us. The distance between the moon and the earth and the idea of total eclipses is probably very, very rare, because it's just coincidental that we've got the earth and the moon at the distance it is right now. In fact, even in the future and in the past, and we won't have total eclipses anymore. Any posts on the island, and if you look at it, you'll see some of the other things you can teleport to. There is an amphitheater, let me see if I can get my, there's lots, lots of different things to see here. If you look on both the back, there's some freebies, exhibit landmarks, such. Also, these posts are the only way to get to the regions that are above the ground. One of them is on the back of the post. Let me walk around that way so you can see it because Mars one. I want to show you the other couple ones that are here, and then I'll let everybody go. But the Mars one is around this side. It says, see an asteroid smart smashing to Mars. And last time I tried it, I couldn't get the asteroid to smash into Mars, but it was an incredible exhibit when the script worked. It also has a memorial to Paul Darity. We actually held the memorial there. Okay, the big building here, let's take a look around. This big building, does anyone know what the big round building is? This big round building here, that's part of it. I'm going to walk around here. I hope I don't lose anybody. Recognize this? Actually, that's close. This is the comet that they landed on. This is kind of the peanut-shaped comet. I'm trying to remember what it's called, but it's kind of peanut-shaped, and they landed on it, and then the little spacecraft bounced and fell into a kind of a ditch. And I don't remember if they ever got any information back from it, but the information they got at the beginning was fantastic. It's just the little thing bounced, unfortunately, and fell into, yeah, there you go. Okay, and it's rotating around, but it was the first comet, the Rosetta. Absolutely, the Rosetta one. And then, of course, right now, there is a spacecraft that is on an asteroid. It's kind of a square-looking asteroid, kind of funny looking. Now, the building here, what I will do is, I won't go into the building, but what this is, is this is a famous old observatory. In fact, from when I went to secondary school or high school, I could actually see this. This was up on a mountain above Silicon Valley. It's called Lick Observatory. It was made in back, I think, in the 1880s or sometime, and it's a very famous refractor telescope. That is, it's got a big lens at the end, rather than the ones we have today, which are refractor telescopes or reflecting telescopes. And you can actually, by the way, you can actually move the floor in the model here. You can move the floor. If you stand up on top, you can click on it so you can move the floor so that the observer can see through the telescope. That's how it worked back then. The floor actually moves. But this is a model of a very old telescope in the United States called the Lick Observatory. Here again, let's go ahead and, since it's 22 the hour, let's go ahead and look at some of the other exhibits. Let's see, what is this thing here? This may be the asteroid. That says Comet Hartley, too. Okay, so in this pavilion, this very colorful pavilion, is one of the things you can do in second life that you, yeah, we got to keep moving, is that one of the things you can do in second life that you can't always do in first life. And that's to show these are fantastic optical illusions. Take a look at the ones around you. This is kind of like the pie day. It's got several different optical illusions. The big objects are second life artistry. But some of these other ones are optical illusions, like the ones with the cubes. So take a look around a couple of these ones here. They're very interesting or come back because they show what look to be like the ones here. It looks to be like those are not squares, but they actually are things like that. It's very interesting. It's a good example of what you can create in second life. These are also replicated at the actual Exploratorium Museum in San Francisco. But it's another idea. For you guys that like one of these things, take a picture or remember about it because they're not, yes, Flowland was a region near here or connected to here that it there was a bridge actually that went across if it's not here anymore. And it was devoted completely to mathematics and it had some marvelous examples. I've got pictures of that area and it had full call pendulum. It had other types of interactive exhibits. And unfortunately, just like this exhibit is that well, it may be gone. You can check. There used to be a, it's gone. And that's terribly unfortunate because just like the reason we're here is we need to be able to preserve this in memory. We need to be able to maybe reproduce it. Most of these exhibits are not, except for some of the art in here, they're not terribly difficult to reproduce or to script. It's just a matter of which do we want? Take pictures, remember them in your head. What can we do to, so that this doesn't go way to what, so that this is not just a memory. This needs to be something preserved and we can do it ourselves if we have the desire and do it. Now let's, let me, before we go up to the, yeah, you can make a machinima of it. Absolutely. That's even better a video machinima so you can see the dynamic. Let's go look at the last exhibits here and then we'll go up to the Mars one. Then you guys can go off on your own. Okay, so I'm headed over to these ones ahead of us. These are some of the other areas. Here again, there are many of the, this is devoted here to the Solar Eclipse back in 2017, this large exhibit ahead of us. And here's another one of the navigation posts. Now what we'll probably do is look at the exhibit ahead and then come back to this navigation post. Find the one that says Mars. It's kind of got a asteroid or a meteor crashing into Mars. It's kind of orange. Yeah, years of work. This is years of work, a wonderful ability to share science and knowledgeable people. Now here's a large exhibit on the Solar Eclipse. It's very definitive. You can see what was going on as it went across the United States. It's one of the only ones in a long time that will go across the United States. Obviously, there'll be other ones across Europe and other places. It's just that for people that were in the United States, this was a marvelous opportunity. Let's see. Oh yeah, in some places you can actually sit on some of the exhibits and see them. There's one that's a box a ways away where you can sit on it and actually see inside of it as if you were a part of the exhibit. Here again I suggest everybody come back sometime and see this. I believe this sim will still be up until next April. So do that. Now what I'm trying to find is a there we go ahead of us is I'm trying to find one of the navigation posts and we will transport up to Mars and that will conclude the tour. Before I do that these ones here are worth looking at. This is the ocean and why Einstein's involved. Yeah, Mars is one of my favorites too. That's one of the ones which I was first very impressed with the scripting. Anyone know about Brownian motion or how it relates to Einstein? Yes, in other words, before the 1900s people suspected there were atoms and molecules, but there really wasn't any proof of it and so Brownian motion is an actual effect. You can with the right, I'm trying to think of what they use, but it's not something difficult. It's something where you can actually see little particles moving around. I'll have to look it up, but the idea is you can actually see it visibly Brownian motion taking place. By the way, you can actually go into this exhibit and sit on one of those objects there and become part of the exhibit yourself. It's kind of funny, but the, well that's, you know, when you see things moving around inside liquid and such, that's some of the what's going on can be prescribed to Brownian motion. Now the person who actually was able to, yes, Einstein published a paper on it, among other papers. He could have, there were so many papers published in 1905 in that one journal of the Annaland of Physics that he could have easily gotten a Nobel Prize just on Brownian motion, for example, because it was the first real proof of atoms, and that was where Einstein came in. He published a paper on it. There's one more exhibit. Yes, that's exactly correct. That's what I was referring to. Yeah, it's very laggy because of all the scripting. There's also, by the way, I don't know how many people here, but this, when I look out, hey, there's quite a crowd, which is wonderful for today. Thank you all for coming. It's most cool, but this is a very important place. And this one here also shows you how atoms moving around can change path because of other objects. In other words, visible objects can change path, but you can come back and read this. It's kind of cool. So we're actually kind of toward the end of, this was one of my favorites game. And what it does is it tests your memory. And it's not, it's not so much guessing is what you do is, the last time I tried this, the script didn't work either, unfortunately. But what it did at one time was you tried, see how many balls there are, there's green balls and blue balls. By the way, this would not be difficult to, yeah, memory test, this would not be difficult to reproduce either because it simply changes the color. And so randomly what it does is that when you click on it, see if it still works. I'm going to do here. Oh, there we go. Hey, maybe this works. Cool. Okay. So what I did was I clicked on three. It randomly picked three of the balls to, somebody picked on two. Now, okay, we've got other people clicking. And what it did was when you press start, it moved them around. And then you had to, yeah, it's moving around. And then you had to actually follow the two or three or four or five balls. Hey, it works. Good. Okay. Now what it's doing is it's going to take away the colors and you have to remember where the balls are and then click on them to see if they're correct. Yeah, this is fun. I used to play with this. It's quite a bit. And if you get it wrong like somebody just did, it's red. And if you got it right, it's blue. But it's very hard. I don't think I ever got the five balls. Somebody maybe has that good of memory, but actually following them around and then remembering which for which really, really difficult. But you know, come back four balls. Oh boy, have fun. Is it going to move around? But this is kind of a fun one. I'm glad to see that the script is still working on it. Okay. Now that actually concludes because we're kind of back where we started with the pie. And so we've walked around the entire region. But what we need to do is now I'm going to go over to the navigation bar here. There's several of them and click on the one that goes to Mars. If anybody wants to follow me up there, we'll go there. And if the script still works, this should be very nice. Find the one that has Mars, which I think is on the other side here. Yeah, there we go. It's in the middle. And when you click on it, I'm going to disappear. Okay. Because I'm going up tomorrow. So you're going to, it looks like we've got a few people. I hope everybody follows. There we go. Other people here showing up. Yay. Okay. Good. Follow. Have a seat for a second. Grab a seat. Welcome. Welcome. I think there's still quite a few people down on the surface. Do they still have the memorial? I'm not sure if they do up here. But it used to be right here in front. By the way, in order to get back, you need to be able to get back to the surface. The, okay, the little green one controls the, there we go, another person, the green one controls the exhibit, which I'll do here in just a second. And then there is a navigation. Here we go. This, yeah. Okay. So the one where I'm standing right here is how to get back to the surface. And then if we, yep, okay, it looks like we have a good majority of people. Where are we right now? We're on the surface is across the way. The memorial is across the way. Okay. So right now we are on the surface of Mars and NASA used to have, let me see if this is a NASA thing. NASA used to have a lot, oh, this was actually built by someone and then owned by patio. And this is a NASA rover. There used to be, like the ones that are on Mars right now, the Curiosity one. And there used to be quite a few of those here. Okay. So let's see, let's see if the exhibit will actually work. I'm going to click the red one. If it, if it, what, if it does work, watch, because this used to be really spectacular. Watch what happens here. Let's see if this will work. Okay. Let me see if it will do its thing. There used to be a, there, okay. I'll leave that one big enough to wipe us out. You can actually go walking in the crater too. It's kind of cool. And then we can reset it, but you can, you can see what the crater would, would be like. It's pretty cool. It just was created. You're in a Martian crater that was just created, isn't it? There's something you'll never hopefully witness in at least that close in your lifetime. But what we'll have to do is reset the thing so that I think it, I don't know if it resets automatically or whether somebody has to reset it, but it's most cool. If you have not, by the way, and then I'll close up the tour, is if you have not gone over to the memorial, one of the geniuses behind here was Patio Plasma, at least that's, or Paul Doherty in real life, Dr. Paul Doherty. And he was a, the chief scientist at the Exploratorium. But let's see, where is the memorial here? There it is over there. But explore around. And then when you're ready to leave here, just be sure to go over to, yeah, okay. And that was the memorial to Paul. But he was the one that did a lot of the, he owned most of the objects on the island. He did a lot of the scripting. We, the science circle has an award to him that you'll see online. So this is a good place to end the tour. Yeah, very missed. And then again, remembered. And so this is the end of the tour. And so please take it, take time to look around, come back, just sit and con him play, try things, make sure that you get a good idea of what's going on around, because we may be able to reproduce some of these things if there's some that you like, particularly in mesh. Okay, I'll leave you here. Take care. Okay. As in any tour, it's always a fast pace and you always want to see more than they show you and slow down. So feel free, relax, you know, come back, look around, sit and feed the ducks, any number of things. It's a good place to be in. It's in the center of a lot of things that you might want to see. There's still some islands. This used to be a large area of about 25 or so islands called Cylans. And this was somewhat in the center of it. And so everyone knew about Exploratorium. But there's still some, there's still some left if you look at the map and if genome is left, yeah, it was a actually a mini continent, the old days. I think we still have some, I was one of the Cylans senators is what they called them people that owned the islands in this area. And yep, they have sunk into the Linden Sea. Okay, but there's still a lot to see in Second Life. Okay, so if genome island is around, I'd love to give a tour or to get maxed to show us the tour, that would be even best. I mean, it's her island, Chatanoire, who's a professor of biology, and it's got some incredible, if you have time and you want to look around, transport over to genome island and take a look, it's all about genetics and DNA. And it's got some just like this island, it's got some magnificent examples. She still uses it for classes. It's got some great scripting examples. Interactive that would be a yes, she would be a perfect panel member. Good idea. Good idea. That's why we're all here is so that we can share ideas and to make this happen. This is a community, a science community, and we can't let this die. Second Life is a wonderful yeah, you know, there used to be a glacier. Noah used to have an island that actually had a glacier exhibit and you and you could see where the glacier was and then you could have the glacier retreat. Another cool place. Okay, well, I personally have to get back to First Life, but have fun. I'm glad I was able to show people around if you haven't been here, or even if you have.