How does an electrical torch or flashlight work? According to the usual description, the lamp inside produces light, this light is shone on the objects we desire to see, partially reflected from…

The Mystery of Entropy (1)     What is entropy and what does entropy have to do with order and disorder? We know what order is. The concepts of order and disorder have been part of our…

In case you haven't noticed, there is a new paper in the arxiv which you should not ignore if you are doing Higgs physics at the LHC. Of course, most of you are not involved in this, but still, it…

Everybody knows that the orbital momentum  is "quantized" and its z-projection  has integer eigenvalues in units of  . Too few, however, know that it is, in fact, a quasi-particle…

2011 is the 100th anniversary of the discovery of superconductivity and I am thinking a blog of the puzzle would be a timely topic. When I was 17 I prayed to God for a challenge worthy of the skills…

NEW THEORIES OF COSMOLOGY for OPEN DISCUSSION      History of the science always showed that the science is like a mirage. People will think that science has reached to an…

I know that some of the visitors of this blog are surprised to find personal stuff in my column every now and then. However, a blog is an online diary, and I do leave here my personal thoughts if I…

The old discussion about how an airplane, that is many tons of steel, can keep staying supported in mere air, is a perfect example for how discussions way too often polarize into two camps with both…

In his book "Everything's Relative - And Other Fables From Science And Technology" Tony Rothman writes:  "[The term] 'special relativity' is probably the greatest misnomer in the history of…

Dynamics can be surprising at times, even when applied to well-understood and tested physical systems such as a basketball and a basket. Look what happened to a free shot executed by Kamyl Kawrzydek…