neufer wrote: ↑Fri Sep 20, 2019 5:56 pm
Ann wrote: ↑Fri Sep 20, 2019 5:17 pm
De58te wrote: ↑Fri Sep 20, 2019 3:49 pm
Saturn is also an outer planet as well as Jupiter. But I beg to differ with Chris. I was taught that Mars is also an inner planet because it is a rocky planet. Outer planets were gaseous. With the exception of Pluto, at the time considered a planet, but then they said it is not known what Pluto is, it could be made out of ice not rocks.
Wow, the discussion of semantics here.
My own greatest mathematical achievement by far was when I built a model of what I decided was the inner Solar system. It consisted of the Sun, Mercury, Venus, the Earth and Moon and Mars. I made a reasonable job of making the Sun and the planets moderately accurate in relative size, and I also managed to place them at moderately accurate distances from one another. (I was inordinately proud of myself.)
Ah...but was it
"spread out" enough vs-a-vi the size of your Sun
https://www.etymonline.com/search?q=planet wrote:
<<planet (n.) late Old English planete, from Old French planete (Modern French planète), from Late Latin planeta, from Greek planetes, from (asteres) planetai "wandering (stars)," from planasthai "to wander," a word of uncertain etymology. Perhaps from a nasalized form of
PIE root *pele- (2) "flat; to spread," on the notion of
"spread out...but the semantics are highly problematic," according to Beekes, who notes the similarity of meaning to Greek
plazein "to make devious, repel, dissuade from the right path, bewilder," but adds, "it is hard to think of a formal connection.">>
Ann wrote: ↑Fri Sep 20, 2019 5:17 pm
Anyway, to me, "the inner Solar system" comprises the Sun, Mercury, Venus, the Earth-Moon system and Mars.
I think we need a big debate on which planets are innies and which are outies.
https://www.wisegeek.com/why-do-some-people-have-innie-belly-buttons-while-others-have-outies.htm wrote:
<<Innie belly buttons are said to comprise 90% of the belly button population, with outies making up the remaining 10%. The exact reason for this innie/outie belly button discrepancy remains a medical mystery, although there are some interesting theories floating around the Internet.
The belly button, also called the navel, is actually the body's first scar. The umbilical cord, which supplied nutrients to the unborn baby, is routinely clamped off shortly after the placenta has been expelled. Two clamps are placed a few inches away from the baby's body, and the cord is severed between them. The remaining vestiges of the umbilical cord eventually wither and fall off, leaving a small scar we know as the belly button. For many people, the scar is concave, meaning it recedes into the body. For others, the remaining scar tissue protrudes slightly from the body.
One theory holds that the innie belly button is the norm, while an outie is the result of a genetic aberration. Needless to say, this theory of natural selection does not enjoy widespread popularity among the outie belly button set. There is no scientific evidence to suggest that an outie is genetically preordained, or that an innie is the default setting once the umbilical cord falls off.
While we're on the subject, there are a few factoids concerning the formation of belly button lint that I feel compelled to share.
The most common color of belly button lint is blue, primarily due to the prevalence of blue fibers in modern clothing. Belly buttons also attract more lint from below than from above. It's likely that more personal belly button lint came from your underwear and pants than from your shirt. I don't know what to do with this information personally, but you never know what might show up on a game show some day.>>
https://en.wikipedia.org/wiki/Omphaloskepsis wrote:
<<Omphaloskepsis or navel-gazing is contemplation of one's navel. The word derives from the Ancient Greek words ὀμφᾰλός (omphalós, lit. 'navel') and σκέψῐς (sképsis, lit. 'viewing, examination, speculation'). Actual use of the practice as an aid to contemplation of basic principles of the cosmos and human nature is found in the practice of yoga of Hinduism and sometimes in the Eastern Orthodox Church. In yoga, the navel is the site of the manipura (also called nabhi) chakra, which yogis consider "a powerful chakra of the body". The monks of Mount Athos, Greece, were described as Omphalopsychians by J.G. Minningen, writing in the 1830s, who says they "...pretended or fancied that they experienced celestial joys when gazing on their umbilical region, in converse with the Deity". However, phrases such as "contemplating one's navel" or "navel-gazing" are frequently used, usually in jocular fashion, to refer to self-absorbed pursuits>>
My Sun was a table cloth, two meters in diameter. My inner planets were cotton balls, 2 centimeters in diameter, except the Moon and Mercury, which were small yellow peas. I placed my Earth 200 meters from the Sun, and Mars 300 meters from the Sun. If I remember correctly, I placed the Moon 60 centimeters from the Earth.
Perfectly accurate? Heck no! Good enough? I thought so.
Ann
[quote=neufer post_id=295431 time=1569002205 user_id=124483]
[quote=Ann post_id=295425 time=1568999874 user_id=129702]
[quote=De58te post_id=295419 time=1568994549 user_id=141631]
Saturn is also an outer planet as well as Jupiter. But I beg to differ with Chris. I was taught that Mars is also an inner planet because it is a rocky planet. Outer planets were gaseous. With the exception of Pluto, at the time considered a planet, but then they said it is not known what Pluto is, it could be made out of ice not rocks.[/quote]
Wow, the discussion of semantics here. :wink:
My own greatest mathematical achievement by far was when I built a model of what I decided was the inner Solar system. It consisted of the Sun, Mercury, Venus, the Earth and Moon and Mars. I made a reasonable job of making the Sun and the planets moderately accurate in relative size, and I also managed to place them at moderately accurate distances from one another. (I was inordinately proud of myself.)[/quote]
Ah...but was it [b]"[i][color=#0000FF]spread out[/color][/i]"[/b] enough vs-a-vi the size of your Sun :?:
[quote=https://www.etymonline.com/search?q=planet]
<<planet (n.) late Old English planete, from Old French planete (Modern French planète), from Late Latin planeta, from Greek planetes, from (asteres) planetai "wandering (stars)," from planasthai "to wander," a word of uncertain etymology. Perhaps from a nasalized form of [b]PIE root *[i][color=#0000FF]pele-[/color] (2) "flat; to spread,"[/i][/b] on the notion of [b]"[i][color=#0000FF]spread out[/color]...[u]but the semantics are highly problematic[/u],[/i]"[/b] according to Beekes, who notes the similarity of meaning to Greek [b][i][color=#FF0000]plazein[/color] "[color=#FF0000]to make devious, repel, dissuade from the right path, bewilder,[/color][/i]"[/b] but adds, "it is hard to think of a formal connection.">>[/quote]
[quote=Ann post_id=295425 time=1568999874 user_id=129702]
Anyway, to me, "the inner Solar system" comprises the Sun, Mercury, Venus, the Earth-Moon system and Mars.[/quote]
I think we need a big debate on which planets are innies and which are outies.
[quote=https://www.wisegeek.com/why-do-some-people-have-innie-belly-buttons-while-others-have-outies.htm]
<<Innie belly buttons are said to comprise 90% of the belly button population, with outies making up the remaining 10%. The exact reason for this innie/outie belly button discrepancy remains a medical mystery, although there are some interesting theories floating around the Internet.
The belly button, also called the navel, is actually the body's first scar. The umbilical cord, which supplied nutrients to the unborn baby, is routinely clamped off shortly after the placenta has been expelled. Two clamps are placed a few inches away from the baby's body, and the cord is severed between them. The remaining vestiges of the umbilical cord eventually wither and fall off, leaving a small scar we know as the belly button. For many people, the scar is concave, meaning it recedes into the body. For others, the remaining scar tissue protrudes slightly from the body.
One theory holds that the innie belly button is the norm, while an outie is the result of a genetic aberration. Needless to say, this theory of natural selection does not enjoy widespread popularity among the outie belly button set. There is no scientific evidence to suggest that an outie is genetically preordained, or that an innie is the default setting once the umbilical cord falls off.
While we're on the subject, there are a few factoids concerning the formation of belly button lint that I feel compelled to share. [b][color=#0000FF]The most common color of belly button lint is blue[/color][/b], primarily due to the prevalence of blue fibers in modern clothing. Belly buttons also attract more lint from below than from above. It's likely that more personal belly button lint came from your underwear and pants than from your shirt. I don't know what to do with this information personally, but you never know what might show up on a game show some day.>>[/quote][quote=https://en.wikipedia.org/wiki/Omphaloskepsis]
<<Omphaloskepsis or navel-gazing is contemplation of one's navel. The word derives from the Ancient Greek words ὀμφᾰλός (omphalós, lit. 'navel') and σκέψῐς (sképsis, lit. 'viewing, examination, speculation'). Actual use of the practice as an aid to contemplation of basic principles of the cosmos and human nature is found in the practice of yoga of Hinduism and sometimes in the Eastern Orthodox Church. In yoga, the navel is the site of the manipura (also called nabhi) chakra, which yogis consider "a powerful chakra of the body". The monks of Mount Athos, Greece, were described as Omphalopsychians by J.G. Minningen, writing in the 1830s, who says they "...pretended or fancied that they experienced celestial joys when gazing on their umbilical region, in converse with the Deity". However, phrases such as "contemplating one's navel" or "navel-gazing" are frequently used, usually in jocular fashion, to refer to self-absorbed pursuits>>[/quote]
[/quote]
My Sun was a table cloth, two meters in diameter. My inner planets were cotton balls, 2 centimeters in diameter, except the Moon and Mercury, which were small yellow peas. I placed my Earth 200 meters from the Sun, and Mars 300 meters from the Sun. If I remember correctly, I placed the Moon 60 centimeters from the Earth.
Perfectly accurate? Heck no! Good enough? I thought so.
Ann