Our bodies are not just heterogeneous muscles and tissues, but also contain the order of the universe, and even the universe itself! Our existence is made of stardust!
Image source: Learning Mind
As a child, I dreamed of becoming a robot. I don't remember exactly why I thought about it, but I can remember that I hated my soft, deformable skin. On the other hand, I was so drawn to science fiction that I became a robot— almost tailor-made for me. As I grew older, the whimsy in my head faded and replaced them with the real life of an adult. I was amazed to learn that humans are made of stardust.
Caption: Stardust schematic. Image source: Volkswagen Machinery
Human beings are made up of cosmic dust. That's right, we're full of stars!
This idea was proposed in the twenties, that stars have similar structures to soil. Later we dismissed the idea, came up with it again and again, and went back to the original point and fell into a cycle, and this mythical idea proved to be true. Humans seem to be more similar to the stars than we think. 97% of the constituent elements of humans and stars are identical.
On September 2, 2016, astronomer Dr. Jonathan Bird hosted a conference called "Where Have You Been?" A guided tour of where you are in the universe in history". This lecture discusses the scientific findings that prove that we are made up of stardust, as we once thought. The stars that were produced billions of years ago also produced the elements that make up the basic structure of the human body — carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur (CHNOPS).
Image caption: The basic elements of life. Image source: SDSS
Elements are discovered by spectroscopy.
Of course, we can't fly up into the sky and grab a handful of stars and examine their composition. So how do we know this? In order to detect the accurate structure of stars, spectroscopy is used as a tool to capture different wavelengths of different elements. The Apache Point Observatory Galaxy Evolution Experiment (APOGEE) at the Sloan Digital Sky Survey (SDSS) observed Galactic dust in the infrared band using a spectrometer in Mexico.
The depth of the spectrum is detected by measuring bright and dark spots. This reveals the composition of the stars and shows that these elements are the same as the basic elements that make up the human body!
Image caption: Schematic of spectra and wavelengths. Image source: gamry
Jennifer Johnson, chair of the SDSS-111 APOGEE science team, said:
"It's an interesting story for humanity, there are hundreds of stars in our galaxy, and we can now measure the abundance of elements found in the human body in these stars."
Below are our dissenting opinions
There are many differences in our substance. It seems that the proportions of some elements are different, for example, the oxygen content is different in the human body and in the stars. The human body has about 65% oxygen content, while the stars and other substances in the universe contain only 1% oxygen content.
There is an old saying that may be true, "We merge with the universe in all sorts of complex ways" We are made up of stardust and those wonderful elements of the universe... Wow, now I'm so grateful that I'm made up of countless aspects and don't fantasize about being a robot anymore. Now I'm attracted to my skin instead — and my organs and bones. You know why? Because I'm made of stardust, that's pretty cool, isn't it?
Image caption: Composition of the basic elements of the human body. Source: Wikipedia
Further reading:
The Sloan Digital Sky Survey, or SDSS for short, is a major multispectral imaging and spectroscopic redshift survey using a 2.5-meter wide-angle optical telescope at the Apache Point Observatory in New Mexico, USA. The project is named after the Sloan Foundation, which provides significant financial support.
Data collection since 2000, the final imaging data release (DR9) covers more than 35% of the sky, the luminosity detects nearly 1 billion objects, and research continues to obtain spectra, which has now been measured in the spectra of more than four million objects. The median redshift parameter of the main galaxy sample is z=0.1; the redshift parameter of bright red galaxies is z=0.7 and the quasar is z=5; imaging surveys have been included in the redshift parameter z=6 of the quasar detection.
Data No. 8 (DR8), published in January 2011, contains all the luminosity observations from SDSS cameras, covering a sky of 14,555 square degrees (just slightly above 35 percent of the sky). Data No. 9 (DR9), published on July 31, 2012, contains the first results of the Baryonic Oscillation Spectroscopy (BOSS) survey, which contains more than 800,000 new spectra. More than 500,000 new spectra come from objects in the universe that were 7 billion years old (about half the age of the universe). Data No. 10 (DR10), released on July 31, 2013, contains all of the previously released data, plus the first results of the Apache Point Observatory's Galactic Evolution Experiment (APOGEE), which includes high-resolution infrared spectra from more than 57,000 stars in the Milky Way. DR10 also contains boss spectra for galaxies and quasars in more than 670,000 new far universes. Image results from 1998 to 2009 are available to the public.
Resources
1. Wikipedia Encyclopedia
2. Astronomical terms
3. Mona- learning-mind
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