Recent content by Raizy

I found it in my reservoir tank in my aquaponics system. It probably got drained out from the "grow bed". A grow bed is a gravel-filled container where plants will be growing. The grow bed constantly gets flooded with water from a fish tank via water pump and then drains into a reservoir...

Anyone know what it could be ?

Just the ones harmful to humans.

I bought one of them grow lights for hydroponics recently - 400 watts Metal Halide and I wanted to know if a makeshift aluminum foil wall would be good enough to block out the radiation coming from the lamp. I know the outer glass shell of the light bulb already acts as a filter but i just want...

I've no clue, I'm just a hobbyist and not a scientist. I can only do the most basic observations...

I'm making a small-scale aquaponics system at home (except I'm not eating the fish). There might be some random chemicals that will probably leech into the water from the materials I used (plumbing parts degrading/oxidizing, etc.), or had directly added (I used household ammonia to begin the...

Mainly, I'm only curious about the nifty device's function for reading "brain waves" shown at 5:00 in this video: It only cost like 120 bucks. What do you folks think? Are there any neuroscientists on here that know if the readings are accurate enough for amateur analysis on one's self...

Ok, got it.

Why is it squaring delta t all of a sudden? :confused:

In this pic: http://img268.imageshack.us/i/imgp2719d.jpg/ I couldn't follow what's in the red box. I just hope anyone on here could look through it and tell me if there is some error in there. If not, then I feel stupid.

First learn how to use this if you didn't know about it already: http://ichi2.net/anki/ As for the real question, I can't help you :redface:

Obviously not, but it's culture free; non of that "When was Einstein born?" crap. This type of testing is apparently linked to working memory.

No wonder you got past school with terrible sleep. Uuh, anyways... This one is 40 minutes long; and it's all pattern, Raven's Progressive Matrices: http://www.iqtest.dk/main.swf ---- But you never had to assume Evo was bragging or personally attacking you since all Evo did was give a...

Imagine Tesla with his hundreds of patents ? I bet the oil company would of assassinated him. Poor guy, suppressed in his time, and yet again in the 21st century.

What about Dyscalculia ?