Tag Archives: Flight

Music About Science

I have an opinion that might be unpopular around here: I don’t like music about science. My love of science and scientific knowledge cannot be impugned — my Ph.D. is all the evidence I need to make my case. I never would have made it through my 14 years of biology education if I didn’t love science. I even love boring science lecture — both hearing them and giving them. Music is also very important to me. I have been a casual musician for most of my life, and listening to music and making music are deeply fulfilling for me. There is a bunch of music out there that is about science, and it would be reasonable to guess that I would love this music. But I don’t. There is a time for music, and there is a time for a boring science lecture, but when I’m listening to music, what I want is not a boring science lecture.

Exhibit A:

Symphony of science is pretty popular. But let’s face it — this is literally just a boring science lecture that has been auto-tuned. The words of Carl Sagan, for example, are inspiring in their own right. I don’t think making them musical adds anything to them. If anything, I think his words are cheapened slightly by the gimmick.

Exhibit B:

I have a lot of love for Baba Brinkman, so I feel a little bit bad for listing him here. He is brilliant, great with words, and a good performer. I respect him a lot for using his medium to explain science. I particularly like the way he used this anti-evolution rally song as a base for this song about the science of political values and religion.

I got to see him perform once at an evolutionary psychology conference, and I really have nothing but love for him. For the times that I actually do want to listen to a boring science lecture set to music, I go straight to Baba Brinkman. But this doesn’t change the fact that his work is still essentially a boring science lecture, albeit spoken very rhythmically.

Exhibit C:

Hank Green’s “I Fucking Love Science” is cute. There are some clever lines, but it’s not what I want out of music. It is literal and a little bit lecture-ey at times. What I mean should be clear in a minute.

Please don’t misunderstand me — there is no judgement here. Musicians should write about whatever they want to write about, and people should listen to whatever they want to listen to. My feelings about the music I mention are just my own feelings. I also don’t mean to disparage any of these artists. I’ve tried writing music myself, and I can’t go around calling the kettle black.

This is not about what music I think people should or shouldn’t be writing and listening to, it’s just about what I want out of music. What do I want out of music? Some poetry. Some metaphor. The language of emotion. And would a drum solo kill you?

When I listen to music, I want to be able to identify with the emotions that are conveyed through the medium.

Take this song:

This song is reportedly about Kurt Cobain’s relationship with Tobi Vail, the drummer for Bikini Kill. You may not like this song as much as I do, but you will agree that at no point does this song, which is about a human relationship, sound like an anthropologist talking about the mating behavior of gorillas. The song is about the emotions, not the details. No boring lectures anywhere.

Kurt Cobain talks about his experience in this song without making the context perfectly clear. But it is deeply expressive and poetic, and it is exactly what I want out of a song.

Take another song about a relationship that ended:

Kris Kristofferson’s take on this topic has much more of a narrative style than Kurt Cobain’s. There is no question about what Me and Bobby McGee is about. But there is still poetry. He could have said, “Now she’s gone and I really miss her.” That would have communicated his point effectively, but there is no poetry to it. Instead, he chose to say, “and I’d trade all my tomorrows for one single yesterday.” Give me a minute to catch my breath.

I think the mistake that people make when writing music about science is talking like scientists instead of lyricists. There is a reason why we have scientists write our science, and musicians write our music. It has famously been said that, “Writing about music is like dancing about architecture.” Each of these media have their style, and limits to their application.

Here is what I would like to see: music about the experience of science, rather than the outcome of science. We have beautiful, poetic music about the experience of love, death, happiness, sex, jealousy, war, fatherhood, dissatisfaction, and basically every other human experience one could have. But very little beautiful, poetic music about science.

Consider, for a moment, Leonardo DaVinci. He was both a great scientist and a great artist. Remember that this was the guy who painted the Last Supper, the Mona Lisa, and the Vitruvian Man. If he was going to write a song about science, what would it have sounded like? “If the air passing over the top of a wing is moving faster than the air moving under the wing, it will reduce the pressure above the wing and create lift. La dee dee, la dee dah.” No, probably not.

Through my pursuit of science, I have experienced a wide range of emotions. Scientific discovery can be wonderful, beautiful, painful, emotional, and, at times, even exciting. Where is the music inspired by science that conveys these feelings?

You may disagree, or maybe I just haven’t heard the right music. What’s your favorite song about science?

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The Man Behind the Curtain Turns 1

The Man Behind the Curtain turns 1 today! In the past year, this blog has had over 4800 views from people in 104 nations. This surpassed what expectations I had, and I am looking forward to another good year.

The most popular posts this year were:

Dinosaurs are not Extinct

Hot or Not

Do genes skip generations?

Testing a Claim: Ceramic Knives

The least popular posts were:

Drug-Resistant Diseases

Skipping Generations Part 2

You’re Doing it Wrong, Part 2: Post Hoc Ergo Propter Hoc

A UFO (which was my first post)

And these are my personal favorite posts:

For All Mankind

Dinosaurs are not Extinct

10% of our Brains

The Evolution of Flight

Thanks for reading! I hope 2015 will be even better. (Tomorrow I will go through and fix all of the broken images. Sorry about that.)

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The Evolution of Flight

Out of several thousand species of birds, almost all of them can fly. They all have the ability to fly because they evolved from a common ancestor that could fly. Bats can all fly because they evolved from a common ancestor that could fly. But why can both birds and bats fly? Did they evolve from a common ancestor that could fly? While they did evolve from a common ancestor, this ancestor could not fly. How, then, are both birds and bats able to fly?

In biology, there is a concept called “convergent evolution.” Some types of organisms have similar traits because they evolved from a common ancestor that had those traits. With only a few exceptions, all mammals, amphibians and reptiles (including birds) have four limbs — two arms/wings and two legs. This is because these three lineages all evolved from a common ancestor that had four limbs. Similar traits that are due to common ancestry are called “homologous traits.”

Other types of organisms have similar traits but did not evolve from a common ancestor that had those traits. Fish and whales are a classic example of convergent evolution. They both have a tail fin that propels them through the water, forward fins that help them steer, a fusiform body that makes them hydrodynamic, and a dorsal fin that keeps them stable.

The dolphin and fish share many traits that facilitate an aquatic life. Image from wikipedia.org

But there are more differences than similarities. Here are a few:

  • The tail fin of a fish is oriented vertically, whereas the tail fin of a whale is oriented horizontally
  • Fish lay eggs, whereas whales give live birth
  • Baby fish are fed by a yolk sack in their egg, whereas baby whales are fed from mammary milk
  • Fish use gills to extract oxygen from the water, whereas whales breathe atmospheric air
  • Fish are cold-blooded, whereas whales maintain a high body temperature.
  • Fish have scales covering their skin, but whales do not.
  • Whales have typical mammalian wrist and finger bones inside their pectoral fins, but fish do not.
  • Whales have hair, but fish do not.

Whales do, of course, share a common ancestor with fish, but this common ancestor is not the reason that whales have their aquatic adaptations. The ancestors of whales first evolved into a terrestrial life, then evolved back into the water, much later in life.

When two or more different types of organisms evolve a similar trait independently, these traits are called “analogous traits” and the process of evolving these analogous traits is called “convergent evolution.”

Off the top of my head, I can think of nine independent evolutionary origins of flight — that is, nine separate events of convergent evolution. There are probably more that I don’t know about. Let’s start with the three best fliers that are currently alive: Birds, bats and insects.

Birds and bats are both tetrapods, so they are stuck with four limbs. They both use primarily their front limbs for flight, but they do it differently. Bird hand and wrist bones are fused together to make a short, stumpy end bone. Feathers produce the area required to produce lift.

The bones of a bird wing. Image from wikipedia.org

When birds are in flight, they keep their legs and feet tucked out of the way so they do not interfere with flying.

Canada goose in flight. Note that the legs are not used in flight. Image from wikipedia.org

Bats have a membrane of skin that stretches between their arms and legs that help produce lift. The legs and feet of bats are very important for flight.

Bat in flight. The legs are important in forming the wings. Image from wikipedia.org

Bats have elongated fingers that make up most of the wings. They use skin that is stretched between their fingers to create the area required to produce lift.

The arm bones in the bats and birds are homologous to one another, but their wings are the result of convergent evolution.

Insects have six legs and two pairs of wings. Insect wings are inflexible, except for where the connect to the body; a little bit like the oars on a boat. There are no bones or muscles inside the wings. Birds and bats have aerodynamic bodies that allow them to pass through the air efficiently. Some insects, like the dragonflies, have aerodynamic bodies, but bees and beetles do not.

Dragonfly. Image from wikipedia.org

The pterosaurs were not technically dinosaurs, but they were close relatives. Modern birds, which are dinosaurs, are not direct descendants of the pterosaurs, but birds are more closely related to the pterosaurs than they are to bats. Despite the closer genetic relatedness, the pterosaurs flight ability resembles bats more than birds in a variety of ways. First, they did not appear to have had feathers. Instead, they probably used a membrane of skin to form their wings much the way bats do.

Bats use fingers 2-4 (index through pinkie) for flight, and finger 1 (the thumb) for limited gripping. Pterosaurs only had four fingers, and only finger 4 was used for flight, whereas fingers 1-3 were used for gripping.

Pterosaur wing. Image from http://www.geol.umd.edu


Other, lesser fliers:

These are animals that fly sort of like a paper airplane. They cannot propel themselves once they are in the air — they have to jump to get their initial momentum. But once they are in the air, they can control their direction and create an air foil to slow their falling. Humans can do this with the aid of a wingsuit:

Flying squirrels: A little bit like bats, flying squirrels have a membrane of skin that stretches between their front and rear legs. This allows them to glide over longer distances than they would otherwise be able to jump.

Flying squirrel in flight. Image from wikipedia.org


Flying lizards: Although the word “dinosaur” literally means “terrible lizard,” lizards and dinosaurs are completely different types of reptile. Flying lizards in the genus “Draco” are not very closely related to the flying dinosaurs. The flying lizards are very unusual because they do not use any of their four limbs for flying. Instead, they are able to spread out their ribs to form fairly immobile wings which allow them to glide for short distances.


Flying dragon. Image from wikipedia.org

Flying fish: Flying fish are much better at flying than you would expect. They use their tail to get out of the water and get speed. Once they are in the air they can glide for fairly long distances. If they want to increase their speed, they can put their tail back into the water and give themselves another push. This makes them the only glider that I know of that can add energy to their glide without landing.

Flying Fish. Image from wikipedia.org


Flying frogs: Like bats, flying frogs create “wings” by stretching skin between long fingers. Unlike bats, the “wings” of the flying frogs are limited to their feet, and do not include any skin on the arms or legs.

Flying frog in flight. Image from http://endangeredliving.files.wordpress.com/

Flying snakes: To people who are afraid of snakes, nothing sounds more horrifying than snakes that can fly. But don’t worry — the flying snakes are the worst flyers of the group. They are able to flatten out their bodies to create a very minimal air foil. Their “flight” looks a lot like jumping or falling, but research has shown that they are able to steer themselves in the air. It may not seem like I should have included these in a list of things that evolved to fly, but remember that everything that evolved to fly had to go through many stages of flying ability. In the first stages, the animals would have just been jumping. In later stages, they would have a rudimentary ability to glide and navigate. For this reason, I firmly consider these snakes to be an example of incipient flight.



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