So I have a 7 Month old black lab pup and Im a fearm beliver in a good pup is a tired pup well she seems to tired me out first and I dont want her not to get enough exercise so when Im tired and shes looking at me like come on fatty lets go I break out the laser pointer and she loves to chase it all around the yard, just wondering if this is crule as she never can get the red dot but always comes back for more even when I turn it off she looks at me like aww come on man I was having fun.
Ive owned dogs from puppy to death since I was as child and for any one who is worried I dont run her untill she going to pass out just enough for her to want to lay cuddel and watch some TV with my girlfiend and I, She has to sit in her creat for almost 8 hours a day so after our morning walk I go to work and soon after so does my girlfriend so when I get home shes fired up and ready to go (shes a Lab) and I dont shine the light in her eyes or near her face.
Thanks For all the feed back every one
Haha I do this with my dogs as well. They have an abundance of energy, and sometimes, after a long days work and their walks, I am just about done. So, I take out the laser pointer and they will play with it until I get sick of moving my arm around!!! The funniest part is that they will continue to look for the red dot for at least 10 minutes after I have stopped pointing it. Even funnier, the oldest one knows that the dot comes from "the thing in my hand", so she'll chase it and when I stop pressing the button, she will look up at my hand and try to take a swipe at it =)
I had to do a lab where we shined a laser on to a wall with different diffraction grattings. since we used different diffraction gratings there were a line of dots a certain distance apart. we had to use the equation
(x/L)=(wavelength/d) to find the wavelength of the laser. So, in my lab writeup, i have to say what the biggest source of error was. but the error cant be like i might have measured wrong, it has to be a error that i cant do anything about. Sorry that its really confusing its hard to explain, but i need some possible sources of error!!!Thanks!
The error could be that the laser wasn't properly parallel to the ground, the wall itself, (the wall could have been not such a great vertical area to beam a laser onto) or the material may have affected the outcome by a fractionnnnn..?
haha, and my physics teacher showed this to us, its pretty amazing.
well something like it, i forget but, he showed us this instrument that has two lead balls that rotate and move the two spheres inside the instrument in like a glass case...?
