Recommended by Ricochet Members Created with Sketch. Some Perspective on Viruses

 

For sixth-grade science, I like to use a text called The Universe in My Hands, which is “a general science course in which the elements of the material universe are ordered by size and the student is introduced to the disciplines of the science as a function of their sizes.” The student encounters the universe by ordering things according to their magnitude. You and I, for example, as humans, are on the order of 1 x 10^0 meters (one times ten to the zero power), which we call the Zero Order of Magnitude, or [0].

A cat is smaller than that, at the 1 x 10^-1 meters or [-1] Order of Magnitude. A marble is at the [-2] scale. A human cell is at the [-5], and a virus is at the [-7], or 2 orders of magnitude smaller than a human cell.

If you and I were the size of the order of Mount Everest, or the [+4] Order of Magnitude, a virus would be at the [-3] OoM, about the size of a sesame seed. If you and I were the size of the order of the Earth, or the [+7] OoM, a virus would be at the [0], or the size of a human.

Viruses work by hijacking the protein replication in a cell and causing it to replicate more viruses instead of human genetic material.

Here’s a video on viruses that creeps my little daughter and me out:

https://youtu.be/QHHrph7zDLw

And here’s a great link to an interactive site that allows users to explore the scale of the universe.

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  1. Sisyphus (hears Xi laughing) Coolidge
    Sisyphus (hears Xi laughing) Joined in the first year of Ricochet Ricochet Charter Member

    So how does the chicken soup work, again?

    • #1
    • April 1, 2020, at 11:25 AM PDT
    • 2 likes
  2. Larry3435 Member

    Good post. Just for the record, the You Tube video is a little bit off point because Corona viruses are RNA viruses, not DNA viruses.

    • #2
    • April 1, 2020, at 11:28 AM PDT
    • 4 likes
  3. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Sisyphus (Rolling Stone) (View Comment):

    So how does the chicken soup work, again?

    Right here

    • #3
    • April 1, 2020, at 11:29 AM PDT
    • 3 likes
  4. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    In February, Nebraska doctors were giving chicken soup to corona patients. 

    • #4
    • April 1, 2020, at 11:30 AM PDT
    • 1 like
  5. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Here’s a recipe in case you don’t have one already. 

    • #5
    • April 1, 2020, at 11:30 AM PDT
    • 3 likes
  6. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Larry3435 (View Comment):

    Good post. Just for the record, the You Tube video is a little bit off point because Corona viruses are RNA viruses, not DNA viruses.

    Good point. It is a pretty generic “virus” video and was never intended to focus on COVID-19, but it does help to explain the general working of viruses.

    • #6
    • April 1, 2020, at 11:31 AM PDT
    • 2 likes
  7. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Well, you learn something every day…

    Some viruses are DNA viruses. COVID-19, along with the common cold and SARS, is a positive-sense single-stranded RNA virus

    Thanks @larry3435!

    • #7
    • April 1, 2020, at 11:39 AM PDT
    • 5 likes
  8. CarolJoy, Above Top Secret Coolidge

    A bit off topic, Mama, but yr enthusiasm over this cool vid on viruses made me think you might find this of interest:

    My household signed up for curiositystreaming.com, which has lots of interesting vids on everything from the physics of bubbles, which I highly recommend, to various old movies and TV series. The owners of the vid site have lowered their prices for the sake of all of us stuck in our homes. (I think you end up paying under 3 bucks per month.) 

    Curiosity streams things from HULU and other streaming services as well.

    I found the bubbles video under a heading called “Collections” which also houses an awful lot of David Attenborough films about the wonders of nature. Anyone home schooling right now might find those nature films educational.

    • #8
    • April 1, 2020, at 1:08 PM PDT
    • 2 likes
  9. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    I send my kids into fits of laughter when I do my David Attenborough impression.

    I do this bit about huge worms in Australia:

    https://www.youtube.com/watch?v=uO4lkv-jLRs

    • #9
    • April 1, 2020, at 1:10 PM PDT
    • 2 likes
  10. Randy Webster Member

    CB Toder aka Mama Toad: as humans, are on the order of 1 x 10^0 meters

    This is probably being nitpicky, but aren’t humans more on the order of 2×10^0 meters?

    • #10
    • April 1, 2020, at 4:45 PM PDT
    • Like
  11. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Randy Webster (View Comment):

    CB Toder aka Mama Toad: as humans, are on the order of 1 x 10^0 meters

    This is probably being nitpicky, but aren’t humans more on the order of 2×10^0 meters?

    For our purposes of classification, we consider whether a thing is within 0.3 to 3 of the OoM in order to include it in that OoM. 

    There are not many humans who are 2 meters tall… That’s about 80 inches. I’m 166 cm, or 1.66m, and my student is about 130 or 140 cm. 

    • #11
    • April 1, 2020, at 5:17 PM PDT
    • 3 likes
  12. Sisyphus (hears Xi laughing) Coolidge
    Sisyphus (hears Xi laughing) Joined in the first year of Ricochet Ricochet Charter Member

    CB Toder aka Mama Toad (View Comment):

    Sisyphus (Rolling Stone) (View Comment):

    So how does the chicken soup work, again?

    Right here.

    Two birds, one stone! Nutritional and an aid to social distancing:

    Onions: According to a 2013 review published in Critical Reviews of Food Science and Nutrition, the major onion flavonoid (a compound with antioxidant effects) is a molecule known as quercetin [13]. Furthermore, a 2005 study published in the Federation of European Biochemical Societies Journal reported that quercetin may exhibit antiviral properties [14].

    Eat onions like apples, embrace the new age!

    • #12
    • April 1, 2020, at 8:39 PM PDT
    • 2 likes
  13. Limestone Cowboy Coolidge
    Limestone Cowboy Joined in the first year of Ricochet Ricochet Charter Member

    CB Toder aka Mama Toad (View Comment):

    Randy Webster (View Comment):

    CB Toder aka Mama Toad: as humans, are on the order of 1 x 10^0 meters

    This is probably being nitpicky, but aren’t humans more on the order of 2×10^0 meters?

    For our purposes of classification, we consider whether a thing is within 0.3 to 3 of the OoM in order to include it in that OoM.

    There are not many humans who are 2 meters tall… That’s about 80 inches. I’m 166 cm, or 1.66m, and my student is about 130 or 140 cm.

    @RandyWebster ; Mama Toad was using Mike Bloomberg in her class example.

    • #13
    • April 1, 2020, at 9:37 PM PDT
    • 3 likes
    • This comment has been edited.
  14. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Here’s another little comparison: If the Sun were the scale of us, or at the [0] scale, the Earth would be the size of a pea at the [-2] OoM. If we were at the OoM of the Sun, the [+9] OoM, a virus, which is 7 OoMs smaller, would be the size of my yard, at the [+2] scale. 

    • #14
    • April 2, 2020, at 6:31 AM PDT
    • 2 likes
  15. Skyler Coolidge

    Sadly the youtube video doesn’t work.

    • #15
    • April 4, 2020, at 2:49 PM PDT
    • 1 like
  16. Basil Fawlty Member
    Basil Fawlty Joined in the first year of Ricochet Ricochet Charter Member

    CB Toder aka Mama Toad (View Comment):

    Here’s another little comparison: If the Sun were the scale of us, or at the [0] scale, the Earth would be the size of a pea at the [-2] OoM. If we were at the OoM of the Sun, the [+9] OoM, a virus, which is 7 OoMs smaller, would be the size of my yard, at the [+2] scale.

    I knew it!

    • #16
    • April 4, 2020, at 2:52 PM PDT
    • Like
  17. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Skyler (View Comment):

    Sadly the youtube video doesn’t work.

    It did before it got “promoted” to the Main Feed.. I’ll try to fix it when I get to my ‘puter instead of my phone.

    • #17
    • April 4, 2020, at 3:04 PM PDT
    • Like
  18. Nick H Coolidge

    Order of magnitude scales are fun. One fact I find interesting is that while a zero point of 1 meter is pretty close to the middle between the smallest (which is called Planck scale (~10^-35 m) and the size of the observable universe (~ 10^28 m), we’re closer to the bigger end by 7 orders of magnitude. Set that zero point to 1 millimeter, and it’s almost exactly in the middle. So the tiniest possible part of the universe is as much smaller than an ant as an ant is smaller than the entire universe.

    • #18
    • April 4, 2020, at 3:17 PM PDT
    • 2 likes
  19. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Nick H (View Comment):

    Order of magnitude scales are fun. One fact I find interesting is that while a zero point of 1 meter is pretty close to the middle between the smallest (which is called Planck scale (~10^-35 m) and the size of the observable universe (~ 10^28 m), we’re closer to the bigger end by 7 orders of magnitude. Set that zero point to 1 millimeter, and it’s almost exactly in the middle. So the tiniest possible part of the universe is as much smaller than an ant as an ant is smaller than the entire universe.

    Yes, we study from the [0] to the [-35] and then up to the [+28]. It’s a very enjoyable and interesting course.

    • #19
    • April 4, 2020, at 3:33 PM PDT
    • 1 like
  20. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Skyler (View Comment):

    Sadly the youtube video doesn’t work.

    https://youtu.be/QHHrph7zDLw

    • #20
    • April 4, 2020, at 3:34 PM PDT
    • Like
  21. Skyler Coolidge

    CB Toder aka Mama Toad (View Comment):

    Skyler (View Comment):

    Sadly the youtube video doesn’t work.

    https://youtu.be/QHHrph7zDLw

    Cells are enslaved to serve the virus? So viruses are like democrats?

    • #21
    • April 4, 2020, at 3:58 PM PDT
    • 1 like
  22. CB Toder aka Mama Toad Member
    CB Toder aka Mama Toad Joined in the first year of Ricochet Ricochet Charter Member

    Skyler (View Comment):
    So viruses are like democrats?

    Yes except we don’t think we can develop a vaccine for democrats.

    • #22
    • April 4, 2020, at 4:03 PM PDT
    • 6 likes
  23. Sisyphus (hears Xi laughing) Coolidge
    Sisyphus (hears Xi laughing) Joined in the first year of Ricochet Ricochet Charter Member

    CB Toder aka Mama Toad (View Comment):

    Skyler (View Comment):
    So viruses are like democrats?

    Yes except we don’t think we can develop a vaccine for democrats.

    But we can dream.

    • #23
    • April 4, 2020, at 6:12 PM PDT
    • 2 likes
  24. drlorentz Member