The Japanese Type 4 SPG âHo-Roâ had an exceptionally large 150mm cannon and fired APHE and HE shells. It was based on the chassis of the Type 97 Chi-Ha Medium tank but had much less frontal armor, as it is intended to be a self propelled gun and thus didnât require much armor (intended to be closer to the Type 38 Howitzer that it was based off of than a normal tank).
Bromothymol blue is a chemical that turns green or yellow when exposed to high levels of carbon dioxide. Itâs chemical composition is C27H28Br2O5S
âWe used BTB in class today to measure the release of CO2 in burning ethanolâ
The belief that the Japanese Type 4 SPG âHo-
Roâ is superior to all other tanks, including modern MBTs.
Ho-Ro supremacy!
-all of r/Warthunder