Category Archives: Science
Do you enjoy potassium “lite salt”?
I know I do. I eat it on everything. It’s tastey and healthy, but did you know that it was radioactive? All natural potassium atoms comes in 3 different types, called isotopes (meaning equal members). Each has the same number of protons, which makes it potassium, but a different number of neutrons. Potassiunm 39 and 41 are stable, but poor potassium 40 simply isn’t. Over time, potassium 40 slowly decays into argon gas or calcium. In doing this, it emits beta particles and even gamma rays!
So, how radioactive is a can of “lite salt” from the store? I bought an 11oz (311g) can and did the math:
(note: 1Bq = 1 radioactive decay of an atom per second)
One can of “lite salt” contains 311g of salt.
One 1400mg serving contains 350mg of potassium, 25% per serving.
Thus, the mass of potassium in the can is:
k/srv = 350mg/1400mg = 25% of 311g = 77.75g
Now, the isotope K40 is naturally 0.0117% of potassium, so:
0.000117 * 77.75g = 9.097 milligrams of K40 per can.
The specific radioactivity of K40 is 265400Bq
Thus, the can of salt has an activity of:
0.009097g * 265400Bq/g = 2414.3Bq/can
A gamma occurs 10.66% of the time meaning that my “lite salt” can
0.1066 y/bq* 2414.3Bq = 257.36438 photos/sec
So, it tastes great and emits ~257 gamma rays per second lol
Not too much to worry about, but really amazing!
Change your air filter every 3 months. They gather Radon 😛
I tested mine after changing it lol
I took a bunch of photos of the Sun using a Coronado sun telescope and manually stacked them using GIMP. The result was quite nice, I think you can see a large sun spot as well as a prominence (bottom of sun).
So, how big is this prominence? I measure that it rises ~30,648.94 miles above the sun and has an apparent width of around ~202,282.98 miles!
That prominence is 3.87 Earths in height and 25.56 Earths long!!!
Diameter of sun image is 987px.
Avg. diameter of sun: 864300 miles.
So, 864300 miles / 987px= 875.6838905775076 miles/px
Maximum height of the prominence is 35px
Therefore, 35px * 875.6838905775076 miles/px = 30648.93617021277 Miles
Call is ~30,648.94 Miles
Okay folks, I know you been waiting for a video for a while and I’ve been lazy and working on my books and not producing one. I have an upcoming video about astrophysics that I helped put out for you pretty soon. In this video, I’ll be detecting various radio phenomena from space using my nuclear physics equipment. Depending on whether or not I ever get a clear night, I may also do a video on using a telescope to capture pictures of the stars. I’m also working on some software that will allow me to produce nice thermographic images of the sky. We shall see.