I read a while ago about a stretch in a particular river that's very dangerous because it's very narrow and looks calm, while in actuality it's extremely fast and deep. People try to cross it, or they get in, and boom. That's it. Does anyone know what I'm talking about? I've utterly failed at googling, and for some reason it's really bothering me. [more inside]
The other day I read this thing about ATOMIC GARDENING And apparently this controlled mutation is the reason we have ruby red grapefruits. So my question is what ELSE is atomic that I didn't know about? Is there anything else using radiation unconventionally or atomic technology in novel places I didn't suspect?
I've seen them all summer this Seattle (eastside), in large quantities. [more inside]
I'm preparing a report on a proposed open ocean fish farm, and am having trouble explaining particulate dilution rates to my boss. [more inside]
I'm trying to calculate the probability of contracting HIV for the husband of an infected woman. Given a risk of 10-50 conversions per 10,000 exposures. And assuming an average frequency of sexual acts of 2-3 X per week. That's 100-150 sexual acts /year. That should give about a 10%-15% yearly risk of contracting HIV, right?
How far do I need to be from a highway/parkway to no longer hear it? I hope to use this information to look at a map and find the nearest place that will be quiet in the middle of the night, to record sound. Local road noise or the occasional passing car is not a concern, just highways and parkways that will be busy all night.
I'm looking for resources that will give a layperson like me an interesting introduction into astrophysics, specifically how distant celestial bodies interact over vast periods of time. [more inside]
I'm looking for a UK-oriented fungus identification online group or guide or website or book or Android app. Recommendations based on personal experience are most welcome. Poking around online has led me to a few places, like Mycokey, but either the varieties aren't listed or I'm just rubbish at describing what I've found. [more inside]
What are the different types of innovation? [more inside]
I want to calculate a sequence. It's built on some kind of exponential magic. That is as much as I know. Please hope me. [more inside]
So, we seem to have many snails in our outdoor area lately, and I've been observing them and have many questions... [more inside]
Why is the Latin name for the Eurasian eagle-owl 'bubo bubo' ? I can't find any reference to the Eurasian Eagle Owl having buboes - as in 'a swollen inflamed lymph node in the armpit or groin' [more inside]
I'm looking for climate science textbooks that take a mathematical approach: that go in-depth with the maths of modelling etc. I'd appreciate if they also had a focus on the science of anthropogenic climate change / global warming. Can you recommend any? [more inside]
There are a lot of Anna's hummingbirds and a lot of bees here. They both like a big Mexican sage. Yesterday I saw several hummingbirds in series dive down near the sage then pull up sharply with a sudden 'tweet' noise like a short blast on a whistle. Why are the birds doing that? [more inside]
Or failing a service, is there a way to tell, ahead of time, whether or not a given sunset will likely be a colourful one? I have the perfect spot already, about 650' about sea level, and all of the camera equipment I'm going to get. What I need to know is what to look for in the weather conditions that will make a difference. Which type of clouds will be the most fortuitous, are there particular weather patterns that will help, etc?
Quantum physicists of MeFi: I want to know all the quantum mechanics I need to know to understand quantum computing. I am mathematically literate and willing to learn more math, but I want to minimize my need to study physical phenomena or experimental results. [more inside]
In my last question, I asked for algorithms that changed the world. Now I'd like to know, what are the data structures that changed the world? [more inside]
My +1 is outfitting the molecular biology and biochemistry side of a physics lab. He would like to get books (electronic and/or paper) to fulfill two needs: 1. protocols and reference - for in lab use 2. history or textbook of molecular biology - to help familiarize physics people with the field. Looking for suggestions for solid books that are readable and have good figures. [more inside]
My boyfriend, while educated, thinks climate change effects are exaggerated. Looking for your thoughts on this topic, and if the discourse about climate change is still this conflicting in the scientific community. [more inside]
Today is the first day of National Novel Writing Month, and I've been kicking around a setting in which the regular use of all kinds of mood- and cognition-enhancing drugs is widely accepted in society and tacitly endorsed by the government (though this is neither utopic nor dystopic). I'd like my protagonist to be dealing with the fallout of developing a resistance to these mind-enhancing medications, but before I spend 50,000 words on it, I'd like to check my premises. [more inside]