the eyes of the radio sensitivity  and your friends and don't take it hasn't been a little slice of heaven and oh look at you arranged he's coming he's going to be surprised when i find a special occasion to present him with this bonus check five thousand dollars must have gotten that i'd be out of a bottle i'm well the doc is incoming wow what a oh he just got busy with these new formula and forgot all about us forget the formula if he knew about that five thousand dollars check or we all go up there and give you shaving lotion nothing i can do i mean he's dead yes i've been called a car you think it's murder i don't know i never saw anything like it before you or yes a girl i believe i did take a girl out wants well did she smell sweet talk or she smell sweet most girls do well that's because of mark and he cosmetics limited they make all that goo that the women put on their faces so they want to watch them  live always glad to cooperate with the newspapers profiling they cooperate with me that's the policy of our paper i'll tell you the truth i haven't got very far on this thing myself oh and here's something that might interest you it's a picture why there aren't any birds around here big enough to attack a man how about an eagle we know it wasn't a bird how do you know that because we found several hairs on the shoulder a piece called ha shayla family they're not human hairs  this heat did your brother have any enemies that you know of i know everybody in the village like growing well what did he do at the factory he had charge of the experimental department of the new products into that oh he comes down to cro do you want to be a show to do when through i wanted to protect you from doing too much about tragedy of course you were quite right i was working on the case for the police now yes i understand she couldn't follow me and if i can be of any assistance contrary he was in the best of spirits well i've got to get back to the village now and find my story you'll excuse me if you find it necessary for us to talk again you may come back any time this evening of it's alright with you like to spend some time here a little more fun maybe i do not understand all you know what i mean a little i used back and night be sure i like him who wouldn't hold nice and still just go take a little time this is my idea of nothing a tall sitting here waiting for an animal to give us a knock look at that move and i had a date with frenchy i'll stop crabbing we're supposed to solve a murder you  this is the first time i've ever been invited anywhere and asked not to shave until after i get there i wanted to observe you exact to the action when you try the little or no or this thing i want this lotion to be perfect before some strong that'll make the customers think they're getting their money's worth while that feels great very soothing i don't think you ever use anything well we would want to market anything you wouldn't use ourselves come on out of our wherever you are what are you doing out here mr you i thought you might want some company you know you shouldn't be wandering around the garden at night after what's happened neither should you well but it's part of my job time to somebody or something killed your brother you know i suppose you're working on the theory that the murderer always returns to the scene of a crime perhaps i am not for me if you'll take my advice mary you leave the gentleman to the now come on headlines double back strikes again listen don't tell me it had houghton's maybe evidence on the wagon with the steel bars and the strong boys with the straight check book joe have i ever lied to you this killing i'm much sure mcguire didn't intend doing anything wrong he's just a little overzealous about his work now with a pound and an uproar and everybody terror stricken wondering whether he's going to be the next victim i don't want any more even with an artificial bat you'd better get back to the hotel i want to talk to chief alone he said all right chief yeah be careful in the future every small nothing like this before yes that's the same stuff that's been on every one of the double bats victims but you get found them down more than the bathroom find out where morton got a no i didn't want to arouse suspicion by asking questions till after it's been analyzed you think it has any connection with the murders that's the way it strikes me but i i can't figure out how i got the police cameras out right away i'll sneak around see if i can find out where morton got it i have it probably came insists on remaining here to help clear up the crime worse than that neither he nor more of them will let me give them a bodyguard i guess we'll just have to wait for something to break that night you this is your news commentator walter king tonight we're broadcasting from the little village of heath hill where on the ledge devil bat has claimed three victims during the past six weeks you will note that i say alleged devil bad that ladies and gentlemen is because your correspondent has been very skeptical from the start to the existence of this horrendous creature i have as my guest in the studio tonight professor percival garland brains perhaps the world's greatest authority on animal life i'm going to interview professor raines on the subject of the devil back radio audience may draw its own conclusions professor raines first let me ask you point blank the you believe that any such creature as a devil bat exists i do not he's got a nerve quire in the dark ages when men and women lived in go ahead pour it on so you slipped over a fake picture of me and then when you're fired both of you and i'll see to it that you never work on another newspaper as long as i live made in japan you tell one shot mcguire you ought to be that that when we do i'm going to bring it in and stop it down your throat goodbye oh oh mary i thought it was somebody else you only wanted you make a joke of a tragic thing i think is a put it was meant tended as a joke mary i was only trying to get the news i suppose you call it getting the news when you arrange dip into picture that's a deliberate ho that has the entire country laughing granger johnny but somehow i can't appreciate it but i can explain that picture don't try johnny here's the chemistry part on that shaving lotion i see you couldn't break down one of the ingredients yes he said it must be some element with which he's not familiar we won't get any it just one other man this town that might be able to help us dr carruthers yack or others could help us i found out a compound about lotion well if you suspect carruthers you're barking up the wrong tree johnny why all the doctor got out of it was ten thousand dollars and the others made a fortune i was common knowledge that he sold out for cash when he could have had an interest in the farm just the same every victim had this stuff from his laboratory on  maybe you've been working too hard on this case johnny like to get his reaction on the stuff if he denies knowing anything about it when all there's a tie up somewhere i think you're balmy but just to show you that i'm following up every clue we'll talk to nothing good it's a mammal well the only way our police cameras couldn't break down one of the ingredients we thought perhaps you could compounded this myself he said you shaving what's the matter which is that the smelly shaving lotion put you to sleep or why do you tell a doctor going to use it if you think it's smelly i don't know i guess i was a little ashamed of ever suspecting the old doc well i like it and i'm going to tell him so i was too skeptical when i came to people today to examine the body of this so called death of a bat but i have to seen it personally and making exhaustive research i've arrived to the conclusion that the creature is the lo i did the last time we talked do you suppose that i don't know how to say it but i do i meditate and do you suppose that little french go with apologized to me if i left her a positive she would i hope you're right about that santa fe parading quickly i smell of the high heavens perhaps that would be the secret of success but if i'm ever tell what's going to happen in this business you can believe me han not bad and when you remember what we built on america ten thousand dollars for your formula you shouldn't have demanded all cash stop you through written along with us  would be rich too now and then you've had a lot of fun on your laboratory with your experiments dreaming up something new you know in a dream or dark too much money is bad for dreamer i've already proved it three times i think i've got to do all those martyrs it may peter out but if half what i suspect is true it's the most diabolical plot that a madman ever co talk about the absent minded professor i forgot my  i feel much better mr heath sent you ask us to stay in your home until this new devil that has been killed i've been worried about mary but they didn't have you to believe the matter using danger only this i'm convinced that someone is using the bathroom wipe out the entire heat what happened i was trying to get in the window big bad memory i want you to tell me everything you did just before that about trying to get him well first i took a bath then i brushed my hair and next scene came entering the covers down and then fashion the screen which somehow had come on hooked yeah god what else well then we talked about the new curfew that someone had put in my dressing table bottles dad did you put in a new perfume with my bottles no i didn't that's the stuff yes tiny smells like a quiet i've got a hunch that i want to follow up no need everybody's corporation we do everything we can cook what's caruthers number  i don't feel so good myself would you mind taking my temperature you look perfectly bellowed mr mcguire well you ought to see my town it looks just like a squirrels tail look but i have some column o suggest anything well you could give me some more of that new concoction of yours that shaving option but how on earth could that possibly help catch the bit of a bad i've still got a crazy idea that if i doused myself whether it might you see doc i figured out something all for the murdered people had this lotion on them when the devil bat's struck my plan is to sit in the garden and when the killer makes one of those power dives are blasting late ni count on you to help me r wouldn't that thank me i haven't any of that lotion on me don't worry about the back killing you i'm saving you for the hangman tell me doc how did you develop a monster bad like that you wouldn't understand  in action is produced by the us oldest scientific institution a california academy of sciences now in its one hundredth year thank you for you a cup of coffee oh i'm doing this i'd like to mention a problem that has arisen i didn't plan to drink my coffee right now but i hope to do is to drink it and if you met us so the question is shall i add the cream now on our show i added later in about five minutes when i get ready to drink the coffee but we can very easily make an experiment out of this by adding cream to one of them now and then later when we get ready to drink the coffee we can test that against the other cup of coffee to which we will add cream at that time and of course there will be a certain amount of cooling and both of these cups of coffee and that cooling will be due to the flow of heat flow of heat from the coffee to the coffee and from the coffee to the air and there will be a considerable amount of difference in the temperature of those two cups of coffee in five minutes i have difficulty remembering which one cools off the faster but fortunately we have as our guest on science a man of action and a scientist who has the cools off more rapidly we can show that little red here oh this represents the first cup of coffee black cools off the time so that in about five minutes for an f five minutes it's gone down almost to room temperature because this would be the time scale here in more so now if you want your coffee to be hot the end of five minutes are you going to have the cream first or at the end of time or the thing to do quite obviously from the grassroots do but the cream in first then at the end of five minutes you'll have a hotter coffee than if you add the cream at the end of that period it's right just the opposite of what you might think well how does that list enter into the overall pattern of the transmission of heat when all of the various phenomena of heat transfer or heat traveling from one place to another can be classified under one of three classes of heat transfer we call them the first one is conduction the second one is convection and the third one is radiation now conduction is a very very slow process that takes place as we will see in our many experiments over a period of time it well here is a model a crystal model showing how the atoms that look in a solid think the reason for showing this is that i want you to keep in mind that all substances are made of atoms atoms molecules and it's the rapid state of vibration of the atoms molecules band of water into which we have the do well when you go to heat anything irl you have to bring it into contact or nearby something the tartar and here in this pan of water would bring it up to bring a hot flame up from gas burning gases or from a hot plate and the molecules of that hot object hit the molecules of the bottom of the panel set them vibrating faster they in turn hit others and this atomic motion is conducted through the metal to the other side where it starts to heat the water and then on our charge did we have here we would have the flame at this point and then we would have the flame transferring the heat to the bottom of the container and then that by means of the same atomic motion into the center where the water is that's right passing on the atomic motion that some metal some substances are good conductors of heat and others are poor conductors of heat and i say here are six metal rods all the same length all the same diameter but they're made of different metals that's first and here's copper then a little man and here's brass and and german silver tin and lead now they're painted with a paint the changes color when they get hot although they're all heated to the same temperature down here at the bottom you see this one has changed color all the way up already it's been going about five minutes and it is a good conductor cover but look at this one over here lead you see it's changed color only this far up showing it's a poor conductor so here we have different kinds of conductors good conductors work and all metals and will have a sort of a characteristic other words it will either be poor or good motor and i'm going to put a cork in the end of the tube nouns stuff it up tight you know put this wooden clamp around the shaft and i'll turn the motor on and what will happen is the friction well caused it to boil water it's really quite a weapon there the way that cork popped out of course all of us know about the advantages of metals that are conductors such as copper and some of these others we've seen demonstrated copper and electricity that is an electric field to use for wiring that sort of thing but paper earl is a very very poor conductor of heat but curious enough even though it's a poor conductor if you make it finnan up and distribute the heat over a large enough area you can conduct a lot of heat through a thing like a thin piece of paper i here's a very interesting little experiment with a piece of paper this is ordinary typewriter paper on paper folded into a little cup i want to going to do it for a little water in this paper cup and i hope it doesn't leak and we'll put it over this open flame scorched at all not a sign there when i suppose that you have a thicker piece of material in the bottom of this would that make any difference no regret i have to travel further through the material i anticipated this early so i have another little box with a piece of cardboard in the bottom of it saying that has cardboard in there that you put on top of paper that size about ten times as thick as that favor now let's see if that helps any a little water in it and put it on the over the open flame copper flows quickly into the inside the copper because it's a good conductor but here where it strikes the wood heat flows through the paper it's the wouldn't stop to can't conduct it away fast enough paper gets hot in the ferns so here's a good conductor course water is actually a four conductor of heat and yet the pan of water will be quite quickly due to the second method of heat transfer called convection convection current is a natural flow of hot water from one place to another here we come back to our diagram of the pan cereal when the heat is conducted through the bottom of the and it heats up the water here in this area and the hot water has expanded and it being lighter now rises to the top it goes up here toward the top of the pan  and we're going to heat one corner here with a flame you know readers right or are there comes and then to show that the water is going to flow see it's being warmed here and being warmer expands and rises yes it will go up the side of the tube in a crossover see there's quite a convection current there already set up certainly going around there and buildings are heated by a convection water current there in the basement of the building there may be a furnace to heat a tank of water the water rises through a pipe that flows through the various rooms in the house and back again where it's heated again we have another kind of convection current in the house too around that radiator there's air and this air is warm and as it wants to expand and rises then the cold air comes in along the floor and we get the same kind of a convection current we had here  this case is the air going around the room so to convection currents are involved in such as this faeces yes well it certainly obvious that the hot air heating system is very similar to the hot water heating system in other words these systems and houses generally down in the basement there's a furnace or sometimes a furnace will be on the main floor but always there is a dock that comes in my from a furnace and it goes in usually at the at the floor line somewhere around the baseboard and then from there the hot air every scientist in the country or institutions from mad men and we'll see that you're confined in one country's tries chasing and trying to kill the dream that the oh that doesn't mean anything you just had a nightmare that's all like why should i try to kill hating it has nothing to do with being separated from that reporter friend of yours has it heads and i want to know when we're going back to the city very soon now they are my words practically  your waiting for me could give me an angle i could work into a sunday feature i don't know what you mean by mangle the possibility of the survival in the depths of the swamp by some of those overgrown lizards it used to be head men on earth i understand they travel around on their hind legs and made our present day public enemy pay me for the humiliation of being held up to public ridicule for having my scientific reputation blasted for being forced to resign but i will position i deeply regret any possible injustice here my guinea pig twelve precisely proven his crazy outlandish blood transfusion and say it again demands the right to give a demonstration yeah now we now know he's not here now you'll be back why don't you come on over all right i'll get dressed in the all right away but mean about ten minutes ashton it was a fine place but ain't been nobody live there for a long time and the weeds kept gone closer to the house till they bout swallowed up everything this should make your growing up story for your paper is more than just a story to me he was my friend it was a couple of college professors are going outside and you know a lot of big words they followed me in here and i heard one of them say that's some kind of a dangerous animal down is that a dangerous animal be roaming around the city i don't know  station i don't care what you call a day there's something here that he believes it's real and i can feel it and i'm afraid that i can't stand it here any longer let's get away i can't go now dear i must leave to my work finished for yourself  and you're not welcome here said i but i don't keep quiet and i'm staying here because i thought you needed me and i will have you treated me like this no i don't get upset on my account things to turn out all right i suppose you'll have a right to your own opinion and not you gotta stay here the rest of the night mostly i can't offer you a bit but i'll make yours comfortable as i can thank you very much explanation for the thing you're talking about father knows something about that creature responsible for the horrible killings in this vicinity and i think the same creature killed professor billings that's a terrible thing for you to say i didn't expect you to join the chorus again i hope i'm wrong but i'll do everything i can to learn the truth no matter where it leads they gave you quite a ride but i didn't write any of that stuff so i know i know that's why i'm so sorry the way i received yours if you are interested in the scientific research i'd be glad some time to show you what i have accomplished well that's very nice discovery i want to be the first to congratulate you i should be delighted to give you that opportunity the things that you do have to talk over a way over my head so i leave you alone i don't run away i promise and limit myself to words of to some of the things all the fun out of the i was surprised to see professor fitzgerald in this neighborhood good to see me i don't know yet we'll find out soon as the doctor gets here when he regains consciousness find out who was committed these horrible killings there is be very interested to hear what he has to say