A New Confirmation of the Presence of Errors 1 and 2 in Michelson’s Analysis of His MMX, on the TPC Academic Website, for Riverboat Contest Calculation Contradicts the Solution in Physics Textbooks, Which Therefore Require Correction

Starting in 1996 we elaborated New Interpretation (NI96) of Michelson's analysis of experiments from 1881/87 (MMX), related to discovery of the existence of Errors 1 and 2 (ER12) in MMX analysis, including in its model of two swimmers/boats contest (TSC), whose equality outcome, contradicts current Physics textbooks (PTB) containing ER12. However we discovered on platform/website (TPC) tutorial for Physics teachers/students, recently appeared a numerical calculus for a particular situation (EX1) of the first crossing a river 80m wide, with speed 3m/s, by a motorboat (BO2) with speed 4m/s. EX1 respect the plane vector calculus, resulting correct crossing time t2a=20,0sec. But PTB indicates the time t2a=30.2s, resulting the total time for the round trip t2=60.4s. Notably, the time to travel the 80m along the current/river, PTB indicates the total time t1=91.4s>60.4s=t2, so the contest is won by agent 2. However, TCP did not continue the contest with the return path of BO2, and authors did not address the discrepancy between times t1/t2 from the two methods. However, TPC calculations correspond to NI96. Notably, for the BO2 return time NI96, give the time t2b=71.4s, and total time t2=91.4s, which coincides with the longitudinal time t1=91.4s. Therefore, according to NI96 the contest ends in a tie, and the light fringes in the MMX should not have moved, as happened. Therefore, the credible TPC website/platform, represents a support for the correctness of NI96, confirming ER12 presence in Michelson's analysis, so all PTBs require TSC’s result and MMX’s analysis to be corrected.