The post whore thread.

HCWT....in da house.

Quote:

---

Originally Posted by mcjhr

Hello there Mr obc!

---

Did ya get your run in last night, boozer?

Quote:

---

Originally Posted by Otterbatcat

Cool. One of the science labs at the museum last night was about that. The element table and how each element looks/spectrum bars. Dude had a "magic light box" he flipped some switches for different light intensity/spectrum, and we could see the bars light up in different colors/order. I didn't ask him, what happens when your object has 20 different elements, how does the equipment sort out all the different spectrums for the different elements?

---

Basically, each element affects light at a different wavelength, so the spectra that you get out, is a combination of everything. So in just one spectra, you can pick up as many elements as there are without any difficulty. It's really quite cool.

Quote:

---

Originally Posted by BuffCyclist

Basically, each element affects light at a different wavelength, so the spectra that you get out, is a combination of everything. So in just one spectra, you can pick up as many elements as there are without any difficulty. It's really quite cool.

---

So you search your object using different spectra each time, multiple searches per target? What the guy showed us last night WAS really cool, I was really interested in the whole thing. I dig your job, BC. You rock.

Quote:

---

Originally Posted by HoneyBadger

[Awesom] Awesome! I'm in the process of slimming down the already small family and until the fountains of milk and honey are flowing freely... and with Mrs. HoneyBadger quitting her job and more kids in the plans, that probably isn't going to be any time soon. :(

---

I know how that goes, my wife will be leaving her job when we move and she plans to stay at home while we start a family. We've gotten a lot of bonuses recently that, skimming a tiny bit off for both of us, along with my monthly "fun" money, allowed me to buy my rifle. Once we move though, my free time for guns will drop off dramatically, so I won't be able to go out shooting as much. But, if I slowly buy components here and there, I should be able to build up a nice surplus of ammo so when I'm able to go shooting, I have a good stock. What I need to do now is get several different bullets and powders for my rifle and build up quite a few loads so that I have options to load up when I'm not able to go shooting.

So in just one spectra, you can pick up as many elements as there are without any difficulty. It's really quite cool.

Perhaps if I read that a little better.

Zircon had about the whole thing lit up.

BC, any way you could take a snap shot of one of your images that shows all the different spectrum from one image, that would be super cool.

Quote:

---

Originally Posted by Otterbatcat

So you search your object using different spectra each time, multiple searches per target? What the guy showed us last night WAS really cool, I was really interested in the whole thing. I dig your job, BC. You rock.

---

Well, what we do is get spectra from either 300 or 1000 targets per field, and we look at as many as 9 fields per night. Each target gives us its own spectra, which is then run through a data reduction pipeline and reduces the data to help sort it and look for basic key features.

Think of it like a typical house key. Sliding the key into the lock is the delivery method, aka the spectra. Then each tooth on the key corresponds to a different wavelength. One tooth indicates one element, another indicates a different element and so on and so forth. When you look at the key, you can determine which elements are present and when you look at the slot the key slides into (the shape of the spectra) you can determine what the object is, because different classes of objects have different intensities of the spectra depending on wavelength.

Quote:

---

Originally Posted by Otterbatcat

BC, any way you could take a snap shot of one of your images that shows all the different spectrum from one image, that would be super cool.

---

I'll see what I can do. It's proprietary data for at least 1 year, but I'll see if I can get data from a previous survey.