
Excursions In Science xxxxxx 143 Birth of A Planet
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Mr. Gillespie
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Bob
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Nurse
Oh, good evening, Mr. Gillespie.
Mr. Gillespie
Catch hold of the handlebars. I mean, good evening. Nurse. Would you mind helping me with this bicycle?
Nurse
Oh, but Mr. Gillespie, why bring a bicycle and all those packages to the hospital?
Mr. Gillespie
They're for my son.
Nurse
But your child hasn't even arrived yet. And you know, Mr. Gillespie, it might be a girl.
Mr. Gillespie
Oh, no, it's gotta be a boy. Now look, here, here, see what I got?
Nurse
Boxing gloves. Now really, Mr. Gillespie. Look, why don't you sit down and relax?
Mr. Gillespie
Will you do me a favor and hop down the hall and find out how things are coming along?
Nurse
Certainly, Mr. Gillespie. But first you sit down and rest. Now, I'll be right back.
Mr. Gillespie
Well, here's the catcher's mitt. Oh, boy, wait till he sees all the stuff that I brought him. I wonder where the doggone nurse is. Might just as well get the baseball bat out, too.
Nurse
Gillespie. Mr. Gillespie, you. You mustn't take it like that. You must be more calm. Who told you? I thought I'd be the very first.
Mr. Gillespie
Told me what?
Nurse
Why, that you have a lovely little daughter. Mr. Gillespie, put down that baseball bat and sit down.
Bob
Which just goes to show that it doesn't pay to be too sure, especially in cases like that. So let's keep an open mind on the debut we're awaiting right now. Our science reporter, Emerson Markham, is custodian of the blessed event department. On this excursion in science, he said he'll tell us about the birth of a planet, of all things. Who put you on speaking terms with such phenomena, Emerson?
Mr. Gillespie
Well, Bob, my knowledge comes as a result of a talk I had not too long ago with William H. Barton, curator of the Hayden Planetarium.
Bob
I see. Well, my knowledge of the planets would probably fit on one of Mr. Barton's fingernails. So how about starting off by telling us how many planets there are?
Mr. Gillespie
Astronomers used to think they knew the answer to that question, but now they're not so sure. We used to say nine and list them as Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
Bob
Why do you say we used to? Aren't they all still in our solar system?
Mr. Gillespie
Yes, they are. But ours may not be the only solar system. Over many years there has been a great deal of speculation about the possibility of other worlds than ours. Some people preferred to believe that our sun was a star unique in that it had a family of small relative bodies spinning around it. Others held that after all, the sun was just a star like any other star. Therefore, there were probably solar systems in great numbers scattered throughout the universe.
Bob
Well, that shouldn't have been too hard to settle. If there were planets traveling around other stars or suns, why couldn't our large telescopes see them?
Mr. Gillespie
Well, you see, planets aren't self luminous bodies like suns. They aren't as bright and easily seen. And then too they would be so close to the star that was their sun that their dim presence would be lost in the glare of the brighter bodies. So no telescope could be expected to pick them up. The great distances that separate the stars are against such a discovery.
Bob
Oh, and how far away is the nearest star?
Mr. Gillespie
Just a trifle less than 100 million miles.
Bob
Well, that's about the same distance as the sun, isn't it? I thought you said the stars were so much more distant.
Mr. Gillespie
Oh, that is the distance to the sun. Bob, you said the nearest star, didn't you? That is the Sun.
Bob
Now leave us not be technical. I meant the nearest star in the night sky.
Mr. Gillespie
Very well, Bob. The nearest star is visible from farther south and is called Alpha Centauri. It's about 300,000 times as far away as our sun so far. In fact, to express the distance in miles, you'd have to write down 24 and 12 zeros after it. So we generally say its distance is such that light traveling 186,000 miles a second required about four and a quarter years to travel. The distance that is, it is four and a quarter light years away. Alpha Centauri is really a system of three stars. And the one that is nearest to us is called Proxima.
Bob
Just a minute, please. I am confused. The nearest star is three stars. How's come?
Mr. Gillespie
Yes, Bob. Stars, you see, may be single or multiple. That is, systems seem to merge right down to single stars or stars merge into systems.
Bob
That explanation still lacks lucidity as far as I'm concerned.
Mr. Gillespie
In other words, there are single stars, doubles, triples, quadruples. And from there you are really getting a solar system put together.
Bob
Maybe I'd better try it another way. What's the nearest star in the part of the sky that we see?
Mr. Gillespie
That's one called 61 Cygni, the first star to have its distance measured, and it is just a little farther away than Alpha Centauri. Not very long ago, it broke into the news again with the discovery of a new planet. Calling it the discovery of a planet is a bit overstating it. Perhaps it might be better to call it the discovery of evidence of a planet. No one has seen the planet yet, and there is little prospect that they will.
Bob
Then how do they know it's there if they can't see it, how'd they catch on to the fact that there is one?
Mr. Gillespie
By the way it influences the star that is thought to be its sun. Its gravitational influence, that is. You see, we say rather glibly, the Earth goes around the sun. That is not strictly true. The Earth and the sun go around their common center of gravity. Of course, the Earth does most of the going. The sun, because it's so much larger.
Bob
Does very little and so well.
Mr. Gillespie
Bob. Imagine an observer away off in space, looking at our sun shining as a star in his night sky. He could not see the Earth. It is too small and insignificant. But he sees the sun swinging back and forth a very, very small amount as the Earth swings around it. He would infer that a planet was there causing the displacements.
Bob
So we turn the tables, and one of our Earth astronomers detects a small motion in a star, and the conclusion is drawn that a planet is causing it. Who made the discovery?
Mr. Gillespie
Dr. Strahan, one of the astronomers at Sproul Observatory at Swarthmore College.
Bob
Hmm. You generally expect such important discoveries to be associated with celebrated names.
Mr. Gillespie
Yes, I suppose you do. But though Sproul is one of the smaller observatories in the east, it is very active. They have a large telescope and a good staff. Dr. Strand was one of the younger men there. Only a few years ago he came from Denmark. He's in the armed forces now, serving our country.
Bob
Tell us more about the discovery, Amazon.
Mr. Gillespie
Well, the Star 61 Cygni is a rather insignificant star. In Cygnus the Swan. The group may be better known as the Northern Cross. The bright star, Deneb stands at the top of the Cross, not so far from Deneb. This dim star is to be found, but you won't be able to recognize it. It's really a double star. What Dr. Strand noticed was that its motion wasn't smooth, but had kinks or irregularities in it.
Bob
Was that the first time such an Irregularity has been detected. Seems like a very original way to catch onto an unseen body.
Mr. Gillespie
No, it's not a new technique. One of the most celebrated cases of this sort of sleuthing was done by Bessel a century ago. The most brilliant star in the sky of the relatively near neighbor is the Dog Star, or Sirius. Bessel was using this star to check the time and he found to his amazement that it did not cross the south point with perfect regularity. Sometimes it was a little ahead and then it would be behind schedule. Bessel concluded that Sirius was disturbed by the presence of another body. They could calculate a great many things about it, but no one could see it. And no one did see it for nearly 20 years. And then Alvin Clark built a telescope that detected the dwarf companion to the Dog Star. It seems this star is composed of the most dense material known.
Bob
If that turned out to be a star, why not this new discovery too? Why do they call it a planet?
Mr. Gillespie
The amount of the disturbance indicates that this is a rather small body. It has a mass only 1/60 of our sun and it goes around the star in just less than five years. Call it a dwarf star if you will. It's quite probable that the sharp line between planets and stars may be breaking down. There may be a gradual and not a sharp break between the two. We may expect to hear much more of the matter in the future.
Bob
Yes, maybe similar discoveries will be made on other stars.
Mr. Gillespie
That's right. Already several similar cases have been noted. Dirk Royal at the University of Virginia picked up a similar case in the star 70 in Ophiuchus. This new body is calculated to be about 1/100 the size of the sun and goes around its star sun in about 17 years. Still more recently, Royal reported one only 3/100 the mass of the Sun.
Bob
Are these bodies anything like our Earth? Is it likely they're inhabited?
Mr. Gillespie
No, not likely. They may even be glowing a little. Dr. Henry Norris Russell, the well known astronomer at Princeton University, has made some surface temperature studies of the Strand planetary body and he estimates that its surface is hot enough to glow feebly.
Bob
Then why call it a planet that's not like our Earth?
Mr. Gillespie
Well, the planets in our own solar system show a great diversity, Bob. Mercury is very small, very near the sun, has no atmosphere. One side is very hot, the other very cold. It's nothing like the Earth. And then there's Jupiter or Saturn. Both are giants, many times as large as the Earth. They're so far from the sun that it would give little heat or Light to them. They've detected heavy dense atmospheres on these planets, probably containing marsh gas and ammonia. They're nothing like our Earth, and yet they are planets. In fact, it's rather hard to define a planet. Now it is usually Venus or Mars that we think of as being like our own planet.
Bob
And yet we don't know whether those planets are inhabited or not. Close as they are to us, I like to think some of the planets somewhere are inhabited. Seems kind of lonely to believe that we're the only inhabitants of the entire universe.
Mr. Gillespie
That's true, Bob, but here we are, back to speculation again. We're off the solid ground of facts and are groping around among ideas and beliefs.
Bob
Then back to facts by all means. How about the future of the telescope? I mean, do you suppose it'll be developed so we can answer some of these questions? Will we ever find out whether there really is a planet traveling around this star you call 61cygni? And do you think we'll ever see these planetary bodies we've been talking of?
Mr. Gillespie
It's not inconceivable that we may strike an entirely new principle upon which we can build a super telescope, Bob. I don't mean just building a 400 inch telescope instead of a 200 inch telescope, but something as radical as the radio or the electron microscope. Probably that will be the only way we'll ever solve some of these mysteries. And until then, about all we can do is to plod along the old lines.
Bob
Well, it may have been along the old lines, but thanks for telling us about that new discovery in the planets. Ladies and gentlemen, if you would like to have a copy of a paper which contains the story we brought you here a paper specially prepared for us by William H. Barton, curator of Hayden Planetarium. All you have to do to get one is address your request to excursions in science in care of the station to which you are now listening, asking for scientific paper number 143. The birth of a planet. That's the birth of a planet. Scientific paper number 143. Which brings us down to the next order of business, namely our question and answer period. The questions you will hear, ladies and gentlemen, were submitted by listeners, laymen like ourselves with an active scientific curiosity. The answers are as reliable as can be obtained since they are based on facts provided by staff members of the General Electric Research Laboratory or of other equally trustworthy institutions. Well, Emerson, let's start things perking with this one from a friend in Richmond, Virginia who writes us as Recently I heard that a Tooth can be transplanted from a baby animal's head into the human head before it grows through the gums. How long ago was this discovered?
Mr. Gillespie
Well, that's a new one to us if it's true, for we've never heard of such a discovery. Unfortunately, we can't tell our listener anything about it and rather doubt if it is possible.
Bob
Now, here's one from a lady who would like to know what year and by whom the steamroller was invented in 1865.
Mr. Gillespie
A roller was designed by Messrs. Gillera & Co. Of Paris. And then it seems that Messrs. Moreland and Company, feeling the crudity and unsatisfactory method of allowing the ordinary traffic to consolidate the freshly laid road material, constructed a covered in steamroller that weighed about 40 tons. But it was in 1873 that Andrew Lindelof of New York patented a steam road roller and claimed it to be the first successful road roller patented in America.
Bob
There are various types of road rollers or steamrollers, aren't there, Emerson?
Mr. Gillespie
Well, there are two general types in common use. One is the macadam roller and the other the tandem roller. The primary difference between the two is that the macadamia has three wheels and rolls and the tandem with two.
Bob
Well, this next is an interesting inquiry, Emerson. A friend in Chelsea, Massachusetts, wants to know why our face gets red when we blush.
Mr. Gillespie
Well, let's begin with the definition of blushing. It's a sudden reddening of the face and the neck owing to some mental shock, most commonly of the character of shyness, shame or modesty.
Bob
Excuse me for interrupting, Emerson, but our listener definitely specifies here that we blush when we are ashamed or embarrassed. That's true, isn't it?
Mr. Gillespie
We. Yes, that's right. A blush is also excited, however, by confusion of mind arising from surprise or modesty as well as shame or conscious guilt and apprehension, showing the influence of the emotions on the nervous system and the circulation of the blood. It's caused by a rush of blood, that is, an increasing flow of blood into the capillary vessels over the parts where the blush extends and results from a temporary vasomotor paralysis.
Bob
We usually feel a little hot under the collar, too, don't we, Emerson?
Mr. Gillespie
Yes. Yes. In addition to reddening the complexion, a blush creates a feeling of heat in the face and the neck. The feeling that accompanies a blush is, shall we say, one of distress of heat and general discomfort.
Bob
Tell me, Emerson, do children blush? Seems, I've heard to the contrary.
Mr. Gillespie
Oh, very rarely, Bob. Now, let's attempt to explain in a little more detail what actually happens when we blush. It seems there is a nerve filament from the sympathetic system lying within the sheath of and parallel with each artery and capillary. It controls the expansion and contraction of the muscular coat of the vessel. This is called the vasomotor nerve. Now, during the mental stress that accompanies blushing, the action of the vasomotor nerve is suspended, as I have previously pointed out, paralyzed. The arteries in the capillaries dilate, producing the phenomenon.
Bob
Right now, it's up to us to achieve the phenomenon of getting out of this studio in time. So I'll just say thank you, Emerson Markham, and goodbye everyone until our next excursion in science.
Ryan Seacrest
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Podcast Summary: Harold's Old Time Radio
Episode: Excursions In Science xxxxxx 143 - "Birth of A Planet"
Release Date: July 25, 2025
Harold's Old Time Radio transports listeners back to the Golden Age of Radio, where families gathered around their radio sets to enjoy captivating dramas and enlightening discussions. In the episode titled "Birth of A Planet," listeners are treated to a blend of classic radio drama and an in-depth scientific exploration of planetary formation and discovery.
The episode opens with a charming exchange between Mr. Gillespie and a nurse in a hospital setting. This skit exemplifies the humorous and heartwarming storytelling characteristic of old-time radio shows.
Key Interaction:
Mr. Gillespie arrives at the hospital carrying a bicycle and numerous packages for his soon-to-arrive child. His insistence on having a boy sets the stage for comedic tension.
"[00:33] Mr. Gillespie: Catch hold of the handlebars. I mean, good evening. Nurse. Would you mind helping me with this bicycle?"
The Nurse playfully questions the appropriateness of the gifts, leading to a humorous revelation.
"[01:30] Nurse: Why, that you have a lovely little daughter. Mr. Gillespie, put down that baseball bat and sit down."
This segment culminates in Mr. Gillespie's surprised reaction upon learning he's expecting a girl, blending humor with a universal theme of parental expectations.
Transitioning from drama to science, the episode features an enlightening discussion between the host, Bob, and Emerson Markham, a science reporter and custodian of the Blessed Event Department. The focus is on the groundbreaking discovery concerning planetary formation and the identification of planets beyond our solar system.
Notable Points and Discussions:
Revisiting Planet Count:
Mr. Gillespie challenges the traditional count of nine planets, referencing the dynamic nature of astronomical classifications.
"[02:15] Mr. Gillespie: Astronomers used to think they knew the answer to that question, but now they're not so sure."
Discovery of Exoplanets:
The conversation delves into the methods used to detect planets orbiting other stars, highlighting the gravitational influences that indicate their presence.
"[05:23] Mr. Gillespie: By the way it influences the star that is thought to be its sun. Its gravitational influence, that is."
Dr. Strahan from Sproul Observatory is credited with observing irregularities in the motion of 61 Cygni, suggesting the presence of a new planetary body.
"[06:14] Mr. Gillespie: Dr. Strahan, one of the astronomers at Sproul Observatory at Swarthmore College."
Comparison to Historical Discoveries:
The dialogue draws parallels to Bessel's century-old discovery regarding Sirius, emphasizing the evolving techniques in astronomy.
"[07:14] Mr. Gillespie: No, it's not a new technique. One of the most celebrated cases of this sort of sleuthing was done by Bessel a century ago."
Nature of Newly Discovered Bodies:
The distinctions between planets and dwarf stars are explored, questioning the rigid classifications based on recent findings.
"[08:05] Mr. Gillespie: The amount of the disturbance indicates that this is a rather small body. It has a mass only 1/60 of our sun and it goes around the star in just less than five years."
Potential for Life and Future Discoveries:
While skepticism about habitability is expressed, the discussion remains optimistic about future technological advances that may unveil more about these distant worlds.
"[09:01] Mr. Gillespie: No, not likely. They may even be glowing a little."
Advancements in Telescope Technology:
The segment concludes with thoughts on the future of telescopic research, hinting at revolutionary technologies that could transform our understanding of the universe.
"[10:36] Mr. Gillespie: It's not inconceivable that we may strike an entirely new principle upon which we can build a super telescope, Bob."
Engaging Insights:
The episode transitions to an interactive Q&A session where Emerson Markham addresses listener-submitted questions, providing factual and insightful answers.
Highlighted Questions and Responses:
Tooth Transplantation from Baby Animals:
Listener Inquiry: Possibility of transplanting a tooth from a baby animal into a human before it grows through the gums.
Response:
"[12:08] Mr. Gillespie: Well, that's a new one to us if it's true, for we've never heard of such a discovery. Unfortunately, we can't tell our listener anything about it and rather doubt if it is possible."
Invention of the Steamroller:
Listener Inquiry: Year and inventor of the steamroller in 1865.
Response:
"[12:25] Mr. Gillespie: A roller was designed by Messrs. Gillera & Co. Of Paris... in 1873 that Andrew Lindelof of New York patented a steam road roller and claimed it to be the first successful road roller patented in America."
Further Clarification:
"[13:14] Mr. Gillespie: Well, there are two general types in common use. One is the macadam roller and the other the tandem roller."
Physiological Response of Blushing:
Listener Inquiry: Why does our face get red when we blush?
Response:
"[13:21] Mr. Gillespie: Well, let's begin with the definition of blushing... It's caused by a rush of blood... resulting from a temporary vasomotor paralysis."
Additional Insight:
"[14:05] Mr. Gillespie: ... during the mental stress that accompanies blushing, the action of the vasomotor nerve is suspended... producing the phenomenon."
Engaging Quotes:
On the unpredictability of scientific discoveries:
"[10:21] Bob: Then back to facts by all means. How about the future of the telescope?"
On the emotional and physiological aspects of blushing:
"[14:20] Bob: Tell me, Emerson, do children blush? Seems, I've heard to the contrary."
The "Birth of A Planet" episode masterfully intertwines classic radio drama with a compelling scientific dialogue, offering listeners both entertainment and education. By revisiting the charm of old-time radio and juxtaposing it with modern scientific discourse, Harold's Old Time Radio delivers a nostalgic yet informative experience. The episode not only entertains with its engaging skits but also enlightens with its thorough exploration of astronomical discoveries and scientific inquiries.
Notable Quotes:
Mr. Gillespie on Planet Classification:
"[08:05] Mr. Gillespie: The amount of the disturbance indicates that this is a rather small body."
Discussion on Future Telescopes:
"[10:36] Mr. Gillespie: It's not inconceivable that we may strike an entirely new principle upon which we can build a super telescope, Bob."
Explanation of Blushing:
"[14:23] Mr. Gillespie: ...produce the phenomenon of getting out of this studio in time."
These quotes encapsulate the episode's blend of scientific insight and relatable human experiences, making it a standout installment in the Excursions In Science series.