Using an iron is a popular way to straighten hair. Over the years, different products have reached the market, all destined to improve the experience. However, while some have managed to do this, others have not been impressive at all.
"The truth is that even big collections of ordinary books distort space, as can readily be proved by anyone who has been around a really old-fashioned secondhand bookshop, one that looks as though they were designed by M. Escher on a bad day and has more
stairways than storeys and those rows of shelves which end in little doors that are surely too small for a full-sized human to enter. The relevant equation is: Knowledge = power = energy = matter = mass; a good bookshop is just a genteel Black Hole that knows
how to read. "