@ScietechSmith@Philip_HarrisUK I've previously concluded that their chemical distributor suspends shipments over their own half-term (Manchester?) with the best intentions that chemicals are not left unattended or undelivered
@keithjones84 I remember the 'This used to be Yates's' graffiti in the 1990s. Also a vague recollection of the street being used as a real-life location in the 1965 Ferry cross the Mersey film?
@DrDavidBoyce@leysbiotutor@ChatChemistry Gross disparity between molarities? There are x2 ‘end’/equivalence points for this titration. The initial reaction does not produce the expected carbon dioxide, but actually sodium hydrogencarbonate. So are you seeing NaHCO3 production?. See bottom of:-
https://t.co/DSC7DhCSI9
@Hookean1 These Pepsi cans were left behind by students in the last year. As shown, one is steel, other is aluminium. I guess a random canning event - perhaps take a magnet to the supermarket. Was interested to see if their electrostatic properties were different, but they danced similar
@Liverpool1207 Bernoulli effect - the path of fast moving air produced by their fan pulled in additional smokey air along the length of the path's periphery. The same effect leads to the requirement for yellow lines on the edge of platforms in train stations