Una serie de acotaciones al margen a medida que voy leyendo algunos libros... A series of annotations whilst reading interesting books... A collection of notes on books about science, SciFi, history, others topics... Una colección de notas sobre libros de ciencia, ciencia-ficción, historia, otros...

31 December 2018

Countdown to the Flyby of Ultima Thule (2104 MU69)

This January 1st UTC the #NewHorizons probe is going to execute the daring #UltimaThule flyby. The mission website has a nice time table of all the events and where to watch it!

All times are in EST, which is the local time of the mission control. For keeping track in my time zone and my family and most of my friends here a time table in some other time zones: Paris and Buenos Aires!


Only few hours left for flyby!


11 August 2018

Your Listmania Lists - An Update

Your Listmania Lists - An Update

Amazon has updated the list feature and create a new type of list:

  • Your Idea List
And in the process Amazon nicely migrated your old Listmania lists to these new category!

My old link to my lists is now gone!

So the tips in this old post are outdated and here a short update!

How to find and create (old)Listmania / now (new)Idea Lists?

  • login into your Amazon account
  • then go to Your Account
  • you will see an horizontal bar with “Your Amazon.com Your Browsing History Improve Your Recommendations Your Profile Learn More”
  • Click on Your Profile
  • Page down and in the left column you will see a box titled Idea Lists, click there:
  • and voila, your lists are there now:

Second navigation way

  • login into your Amazon account and
  • select from the menu item See more
  • in the next page click on the Tab Your Idea Lists and then again, there they are!
Amazon migrated all your previous lists to here, and they have new links. Here my lists with updated links:

18 March 2018

The Natural Curiosity of Kids

When you have kids you realize one thing. Well, you realize many things. But one of those many things stroke me as very particular: they are curious. Not just curious: super curious. Everything grabs their attention and they make questions: Why? Why? and Why?

For any other parent, nothing new under the Sun. But…

Also they have a very straightforward logic. If you tell them that there are cows in the sky, and then tell them to look up into the clouds: they will chuckle: "daddy, these are clouds, no cows" - “that's right, but do they look like... cows? maybe? "ah! yes, that's funny, yes!"

Something that many kids realized is that there are a lot of things, living things: plants, slugs, spiders, snails, cats, cows, butterflies, dogs, birds, chickens, whales (wow!), tigers and lions (do they look like cats?), and crabs, and fishes (look at this clown fish?), and what's that floating nearby and transparent? (a Jelly fish), and, and...

And some day they realize that there a LOT of living things: some jump, other fly, another swims, they are big and small, some look like something else, things that do not move still are living things: do not cut that tree! That’s interesting: they can figure out living things if they move, sting, run, walk, make noise, or in the case of plants, because they growth. What about lichens, and fungui, which are harder to identify as living organisms, but still: kids can figure out.
 

As a tip it helps a lot to go outdoors, walk and watch to help them make a clear picture. Underwater creatures could be little harder to identify, or figure out if they are a "plant" or an "animal" (hint: almost everything underwater is an animal, even when it looks like a terrestrial "plant"). For sea creatures a walk on the shore, tip toe over the rocks near the reef and looking between the rocks will be a first step into the underwater world. Snorkeling and diving (when the kids have the minimum age to do it) is a journey into a different and strange world. It is just a layer: above/under, and the differences so vast!

How many? a thousand? a million? hundred millions? That's the next question! It opens many fronts, one that an "ant" is not one "ant": there are an estimated number of 22000 different ants! And 12500 "ants" have been classified. That's a far cry from the "red" and "black" ants that you can point in a typical garden! Wow!

And some day they realize that there a LOT of living things: some jump, other fly, another swims, they are big and small, some look like something else, things that do not move still are living things: do not cut that tree!

Yes, that's an amazing world out there, and all happening in a small planet! Never ever kill the kids pleasure and ability for curiosity and getting surprised!

The answer is eight millions and seven hundred thousands! Yes, 8.7 million, or 8.700.000 different type of things: from now on we will call this groups species.


KingdomNumber of Species% described
Animals7.77E+06932,400
Fungi6.10E+0542,700
Plants3.00E+05210,000
Protozoa4.00E+048,800
Chromists3.00E+0415,000



The more and the more they see different living things, on TV mostly, in the wild if they are lucky; the most amazed they became.

The most interesting thing in their straightforward logic is that they can differentiate between living things: stuff that behaves and has intentions; from inanimate things (I can throw a rock in the lake, but the rock is not willing to go to the bottom, it just sinks); to design things (a car do not want to run faster, is the driver accelerating the car) and from things that do not exist (they learn about Santa Claus, and then they realize Santa is just a nice story).

And someday they will ask you: "Why are so many living things?"

Nice question, good question indeed.

Like any other question, do not dodge it, do not dismiss it. All their questions are good, and many of them difficult ones. Do not make up an story, neither tell an untrue one. If you do not know, better admit it, and it is the great opportunity to discover together with them about what we know (and what yet we do not know)

References:

17 March 2018

Why are so many things?

Darwin Day Logo
It was Darwin's Day! Last February 12th!
A good Day to start writing a lit bit more focused on these topics I like, such as:

  • Biology
  • Evolution
  • and many other things, which are not related to Biology - so keeping the things here in the same topic

It will be a story in three parts:

  • Why are so many things? The natural curiosity of kids
  • About classifying things: if you like collecting stuff, you will like this exercise
  • About change, heredity and populations: On the Origin of Species by means of Natural Selection
And another article on Creationism, more specifically about people that hold creationists belief. This is a thorn topic, at least for me, and however the post is written, and already went under 3 or 4 review, it needs more editing...

[Editor's Note: Creationism has the same impact in the author as the Moon Hoax: why? why do people has these beliefs?]