Recent content by Arctangent

Thanks, that helped me visualize the problem!

This is a math question. really. So I have 6 codons. Leu-Asp-Phe-Ile-Pro-Cys. Now as we've all learned from high school biology, codons are made up of 3 base pairs each. We've also learned that the genetic code is degenerative, that is, more than one combination of base pairs can mean...

Hmm, more questions on phase change. I was looking at this question: "Waves from a radio station have a wavelength of 319 m. They travel by two paths to a home receiver 14.2 km from the transmitter. One path is a direct path, and the other is by reflection from a mountain directly behind...

http://www.botany.org/plantimages/ This is a collection of some beautifully photographed plants, and has some good examples for studying as well. http://www.cactus-art.biz/gallery/Photo_gallery_index.htm And a whole bunch of cactii pictures. The huge variety and colour that you find...

Wow, thanks Rade. That's a really nice way of putting that. And right on time to put another book on my xmas list!

For some reason I have trouble with questions like this. How would I get the phase difference if I were given the time delay of two loudspeakers side by side? I'll use this question as an example: "The speakers are now placed side by side. If the wire to speaker 1 is passed through a...

It's such an all-encompassing word. We can have variation in species, genetic makeup, ecosystem, and so many other factors? Can any of you guys think up a good definition that might best describe what biodiversity is? So far I have: Variation in - species - genes - landscape -...

yep. It's amazing that something so huge would be so hard to find. It kinda gives us a picture of how big the oceans really are.

Are you sure? I think I have something wrong here. My final answer is supposed to be in 3 significant digits. Would the air from the chamber only be pushing up to that 5 cm diameter area or would it be pushing up on the whole panel?

.225m = 22.5 cm .05m = 5.0 cm just mixed up the conversion a little, that's all.

ahh good point! :biggrin: So It'd be: Fnet = F(airpushingonrock) + F(friction) - F(water) = 0 Am I correct?

actually I had the same question as well. I'm wondering if I am missing a Force in my force diagram. I used F = PA And then the equal and opposite reaction to the force of the water pushing on the rock would be the friction between the rock and the wall going in a direction opposite...

It's hard to say. Within human evolution physical and cultural evolution have been closely intertwined, and both have affected one another. As for de-evolving? Well I actually don't like using that word. While there are examples of decrease in brainsize in evolution, or other traits that a...

I'm in second year uni working towards a degree in Plant biology, genetics specialization and I'm also doing a minor in Earth sciences. yay botany! :)

Hey there, I was reading up on angiosperms, and one of the possible evolutionary relationships that showed up were ancestors that originally had 2 cotyledons, and the lost of one later on rose to the arisal of monocots. I suppose this might be a really tough question, but what would be the...