Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
The angle of incidence beyond which rays of light passing through a denser medium to the surface of a less dense medium are no longer refracted but totally reflected.
- ‘For angles exceeding the critical angle, the refracted waves are evanescent and the reflectivity is very close to unity.’
- ‘Compared with the intensity enhancement for total internal reflection (~ 4 times that of the incident light) at the critical angle, the enhancement for SPR can reach up to 20-30 times higher.’
- ‘The critical angle c below which x-rays can be efficiently scattered from smooth surfaces is quite small, hence the term grazing incidence.’
- ‘To minimize fluorescence from the sample and meet the total external reflection condition, the system features a slit that restricts beam divergence in the scattering plane to less than the critical angle for substrate reflectance.’
- ‘If the beam through m1 is greater than the critical angle, then the refracted beam will be reflected entirely back into m1 (total internal reflection), even though m2 may be transparent!’
Are you looking for a word for a foolish person? We explore twelve interesting words to describe the dunderheads in your life.
Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.