Viewing profile — JWKennington

Identity in physics can be challenging to find. We’re given a narrow set of labels to choose from, typically theorist or experimentalist, and these can often be time-dependent as w…

Recently had to reconcile multiple keys for similar git hosts, and found several posts that were nearly sufficient. Summarized the method that worked for me in terms of namespacing…

Often in discussions about blackholes, the question arises of observer experience when falling into a blackhole. Due to the extreme tidal forces experienced along such a path, the …

I first encountered a diagram of algebraic structures at the end of Jeevanjee's second chapter, "Vector Spaces", which elegantly summarizes the high-level differences in structure …

I first encountered a diagram of algebraic structures at the end of Jeevanjee's second chapter, "Vector Spaces", which elegantly summarizes the high-level differences in structure …

I've cleaned up the last paragraph, and replaced my friend's reasoning with the term "momentum" to avoid confusion. thanks for feedback

It was weird - I've reparaphrased that to be "momentum" now for improved clarity. thanks for feedback

Photons have momentum. momentum is analogous to mass in special relativity (specifically, mass is the 0 component of the four-momentum)

Hence I said my friend was being a bit “interpretive”. He really meant that though photons have zero rest mass, they nonzero inertial mass (E=mc^2)

I wrote a blog post describing the tensor product in terms of functional programming techniques in python https://jwkennington.com/blog/tensor-product-for-programmers... I would al…

But how am I supposed to know that AB is one mathematical object here instead of the 2 separate objects A, B? My point is that there should be a graphical way other than "put them …