60% polyester 40% cottonDo not Iron Do not dry cleanthen what should I do, it looks ugly hanged with those folds
Yes redshift is additive. This is due to the expansion of the universe. The farther away something is the more red shifted it is because the intervening space is expanding. The more space between the two objects the more the expansion so the more the redshift. This can be seen in the brightest object ever discovered. It is a quasar and the light from it is very, very old (read very, very far away). Although they know it is the brightest object ever seen to us it can only be seen in the infrared spectrum because the light has been red shifted so much (see link below).
I am just gonna try to think about this logically, but i believe that redshift is an absolute depending on the light source. for example, you would see super stretched wavelengths of light coming from the farthest galaxy and slightly less stretched wavelengths coming from the closest galaxy. Either that, or the closest galaxy would absorb the light from the farthest galaxy, making it invisible to an earthbound observer
Just hang them up some where if you don't want them in the room you bought them for eventually the folds will come out, because off the air and gravity. if it says don't iron then you shouldn't, you could try washing them and hanging them out side to dry.
Try putting thick towel between the iron and the curtain. You could also try Downy Wrinkle release- it smells awesome and works well by relaxing the fibers in the material. You can gently tug and smooth the fabric and then hang it and the wrinkles are supposed to fall out. It works on clothes- why not curtains, too?
do not iron put curtains in the dryer with a damp cloth or dish towel , on Low heat for 20 minutes.
