Two "fabulous numeric coincidences", Celsius-Fahrenheit, Fahrenheit, Kelvin

Nine “transcendent” or “significant” points in four temperature scales: Celsius, Fahrenheit, Kelvin and Rankine, and some human body temperatures

Anders Celsius (1701-1744) was a Swedish physicist and astronomer who created a temperature scale: centesimal, or centigrade, or Celsius, whose unit is the degree Celsius. –Celsius temperature scale or Celsius scale.

Daniel Gabriel Fahrenheit (1686-1736) was a physicist who was born in a city of the Polish-Lithuanian Commonwealth then called Gdansk (German: Danzig), he was ethnically a German but lived most of his life in the Netherlands (Dutch: Nederland), so he was German-Polish-Dutch. He invented a temperature scale whose unit is the degree Fahrenheit. –Fahrenheit temperature scale or Fahrenheit scale.

William Thomson (1824-1907), first Baron of Kelvin, Lord Kelvin, was a British physicist, mathematician, and engineer. He determined the absolute zero of temperature, which is the lowest temperature theoretically possible. He invented a temperature scale whose unit is the degree Kelvin. –Kelvin temperature scale or Kelvin scale.

William Rankine (1820-1872) was a Scottish engineer and physicist who invented a temperature scale whose unit is the degree Rankine. –Rankine temperature scale, or Rankine scale.

The figures for each line are equivalent.

ºC

–273.15

–217.594444

–173.15

–40

–17.7777

0

37.7777

100

301.4375

ºF

–459.67

–359.67

–279.67

–40

0

32

100

212

574.5875

ºK

0

55.555555

100

233.15

255.372222

273.15

310.927777

373.15

574.5875

ºR

0

100

180

419.67

459.67

491.67

559.67

671.67

1034.2575

The first line is the absolute zero, in the Kelvin scale as well as in the Rankine scale, and it also shows the absolute zero equivalences in the Celsius scale and the Fahrenheit scale.

The second line shows the equivalences of 100 degrees Rankine.

The third line shows the equivalences of 100 degrees Kelvin.

The fourth line shows a "fabulous numeric coincidence" between Celsius and Fahrenheit scales. This is no other coincidence between these two scales. The coincidence is at -40 (minus forty). Also equivalences are noted in the other two scales (Kelvin and Rankine). At this temperature, humans can die within minutes.

The fifth line shows the equivalences of 0 degrees Fahrenheit.

The sixth line shows the equivalences of 0 degrees Celsius, and in this line there are the temperatures in the four scales at which distilled water freezes –melting point– at one atmosphere of pressure or 760 mmHg (millimeters of mercury), or 760 torr (in honor of the Italian physicist and mathematician Evangelista Torricelli [1608-1647]).

The seventh line shows the equivalences of 100 degrees Fahrenheit.

The eighth line shows the equivalences of 100 degrees Celsius, and in this line there are the temperatures in the four scales at which distilled water boils –boiling point– at one atmosphere of pressure or 760 mmHg (millimeters of mercury), or 760 torr (in honor of the Italian physicist and mathematician Evangelista Torricelli [1608-1647]).

The ninth line shows another "fabulous numeric coincidence", but this time between Fahrenheit and Kelvin scales. There is no other coincidence between these two scales. The coincidence is at 574.5875. Also equivalences are noted in the other two scales (Celsius and Rankine). At this temperature, the human being dies in a few seconds.

To convert degrees Celsius to Fahrenheit, please apply the following formula:

ºF = (ºC × 9/5) + 32 or ºF = (ºC × 1.8) + 32 or, inversely written, it is:

(ºC × 9/5) + 32 = ºF or (ºC × 1.8) + 32 = ºF

(The broken number 9/5 is equal to 1.8, 9/5 = 1.8)

For example, if we know that in Nogales, Arizona and Sonora, the temperature at 5:00 am on the 17th day of January of “n” year, was -12.4 ° C (minus twelve dot four degrees Celsius), how many degrees Fahrenheit does it equal to?

In applying the formula:

ºF = (–12.4 ºC × 1.8) + 32 = –22.32 + 32 = 32 – 22.32 = 9.68 ºF

An ill child has a fever of 40.3 ° C. How many degrees Fahrenheit does it equal to?

In applying the formula:

ºF = (40.3 ºC × 1.8) + 32 = 72.54 + 32 = 104.54 ºF

A physical-chemical experiment requires a temperature of -178.6 (minus one hundred seventy-eight dot six degrees Celsius. What is the temperature in degrees Fahrenheit?

In applying the formula:

ºF = (–178.6 ºC × 1.8) + 32 = –321.48 + 32 = –289.48 ºF

The melting point of aluminum, a chemical element that has the symbol Al, and an atomic number of 13, is 660 ºC. What is the equivalent in the Fahrenheit scale?.

ºF = (660 ºC × 1.8) + 32 = 1188 + 32 = 1220 ºF

The melting point of iron, a chemical element that has the symbol Fe and an atomic number of 26, is 1535 ºC. What is the equivalent in the Fahrenheit scale?

ºF = (1535 ºC × 1.8) + 32 = 2763 + 32 = 2795 ºF

To convert degrees Fahrenheit to Celsius, please apply the following formula:

ºC = (ºF – 32) × 5/9 or ºC = (ºF – 32) / 1.8 or ºC = (ºF – 32) × 0.555555

or, inversely written, it is:

(ºF – 32) × 5/9 = ºC or (ºF – 32) / 1.8 = ºC or (ºF – 32) × 0.555555 = ºC.

(The broken number 5/9 equals 0.555555 ..., 5/9 = 0.555555)

One hot summer afternoon the thermometer reads 97 ºF in the city of Barstow, California. How many degrees Celsius does it equal to?

In applying the formula:

ºC = (97 ºF – 32) / 1.8 = (97 – 32) / 1.8 = 65 / 1.8 = 36.11 ºC

The temperature of –459.67 ºF, how many degrees Celsius does it equal to?

In applying the formula:

ºC = (–459.67 ºF – 32) / 1.8 = (–459.67 – 32) / 1.8 = –491.67 / 1.8 = –273.15 ºC

To convert to other scales, please see: Wikipedia.

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The human body temperature that is considered normal varies between 36.5 and 37.5 ºC (97.7 and 99.5 ºF) taken at the mouth, in a healthy adult. The average value according to some doctors and researchers is 37 ºC (98.6 ºF). Another average value obtained by medical staffs in the 21st century is 36.7 ºC (98.06 ºF).

Several human body temperatures:

ºC	ºF	ºK	ºR
30.4	86.72
30.5	86.9
30.6	87.08
30.7	87.26
30.8	87.44
30.9	87.62
31	87.8
31.1	87.98
31.2	88.16
31.3	88.34
31.4	88.52
31.5	88.7
31.6	88.88
31.7	89.06
31.8	89.24
31.9	89.42
32	89.6
32.1	89.78
32.2	89.96
32.3	90.14
32.4	90.32
32.5	90.5
32.6	90.68
32.7	90.86
32.8	91.04
32.9	91.22
33	91.4
33.1	91.58
33.2	91.76
33.3	91.94
33.4	92.12
33.5	92.3
33.6	92.48
33.7	92.66
33.8	92.84
33.9	93.02
34	93.2
34.1	93.38
34.2	93.56
34.3	93.74
34.4	93.92
34.5	94.1
34.6	94.28
34.7	94.46
34.8	94.64
34.9	94.82
35	95
35.1	95.18
35.2	95.36
35.3	95.54
35.4	95.72
35.5	95.9
35.6	96.08
35.7	96.26
35.8	95.44
35.9	96.62
36	96.8
36.1	96.98
36.2	97.16
36.3	97.34
36.4	97.52
36.5	97.7
36.6	97.88
36.7	98.06
36.8	98.24
36.9	98.42
37	98.6
37.1	98.78
37.2	98.96
37.3	99.14
37.4	99.32
37.5	99.5
37.6	99.68
37.7	99.86
37.777777	100	310.927777	559.67
37.8	100.04
37.9	100.22
38	100.4
38.1	100.58
38.2	100.76
38.3	100.94
38.4	101.12
38.5	101.3
38.6	101.48
38.7	101.66
38.8	101.84
38.9	102.02
39	102.2
39.1	102.38
39.2	102.56
39.3	102.74
39.4	102.92
39.5	103.1
39.6	103.28
39.7	103.46
39.8	103.64
39.9	103.82
40	104
40.1	104.18
40.2	104.36
40.3	104.54
40.4	104.72
40.5	104.9
40.6	105.08
40.7	105.26
40.8	105.44
40.9	105.62
41	105.8
41.1	105.98
41.2	106.16
41.3	106.34
41.4	106.52
41.5	106.7
41.6	106.88
41.7	107.06
41.8	107.24
41.9	107.42
42	107.6
42.1	107.78
42.2	107.96
42.3	108.14
42.4	108.32
42.5	108.5
42.6	108.68
42.7	108.86
42.8	109.04
42.9	109.22
43	109.4
43.1	109.58
43.2	109.76
43.3	109.94
43.4	110.12
43.5	110.3
43.6	110.48
43.7	110.66
43.8	110.84
43.9	111.02
44	111.2
44.1	111.38
44.2	111.56
44.3	111.74
44.4	111.92
44.5	112.1
44.6	112.28
44.7	112.46
44.8	112.64
44.9	112.82
45	113
45.1	113.18
45.2	113.36
45.3	113.54
45.4	113.72
45.5	113.9
45.6	114.08
45.7	114.26
45.8	114.44
45.9	114.62
46	114.8
46.1	114.98
46.2	115.16
46.3	115.34
46.4	115.52
46.5	115.7
46.6	115.88

It is said that there have been some very rare cases in which patients reached 115 ºF and survived.

There is a six-part documentary about time on youtube. It is called Cosmic time, by theoretical physicist Michio Kaku (San Jose, California, 1947 - ).

Here is a link, just if you want to start by watching the first part:

http://www.youtube.com/watch?v=yjE5LHfqEQI&noredirect=1

If you, reader, have found some grammar errors, mistakes, et cetera, please notify me about them in the Comments area. English is NOT my mother tongue. Thank you.