Recent content by brbrown

Sorry everyone. I am becoming bewildered with all the variation of answers. I am beginning to wish I had not asked the question:smile:. You have all given me a lot of interesting comments and I thank you all for your help, interest and perseverance.

Hello Everone. Thanks for your replies. Sorry about the delay in responding only I didn't get a notification of any replies by email as I elected to do. I list my answers to some of your questions. 1) Berkeman, the reflection is on the wall opposite the window. The sun was approximately 20...

I hope this is not a stupid question but I attach a photo of a reflection of a square double glazed window showing on a wall opposite the window. Could someone please explain to me what is happening here. I presume the outer circular reflection is showing the extent of the suns rays and the...

Hello S Happens. Thanks for the reply. I don't really have any confusion. I just wanted to make sure I was right before I pursue another related matter. Thanks for the help. Hello Atomic Joe and Sophiecentaur, I can see those points would have an effect but not needed for my purpose. Thank you...

Could someone please clarify if my understanding of the following is correct or not? When a bullet is fired from a gun or a bomb explodes, I thought I had read somewhere that, in the first few microseconds, the speed of the bullet or bomb blast is slow at first then increases to a maximum...