Free Republic
Browse · Search
General/Chat
Topics · Post Article

To: Lazamataz
Where is that d$%^%^ copy editor? Once upon a time FAST COMPANY magazine had some quality, now it has quality problem issues!

That’s way past Mach 5, which NASA defines as five times faster than the speed of sound

Yeah, it is 'ONLY' NASA that defines Mach 5 as 5x of sound, not anybody else! Grrr!

On a related point, Mach 5 is the bottom limit of what is generally referred to as the hypersonic speed range, so in other words Mach 5 is seriously fast! Anybody care to wager what tasks the PRC is running on their world speed record (former) computer? It is not just for coal pollution tracking!

10 posted on 09/21/2018 1:26:03 PM PDT by SES1066 (Happiness is a depressed Washington, DC housing market!)
[ Post Reply | Private Reply | To 1 | View Replies ]


To: SES1066
Then there is the Japanese definition of Mach 5:



14 posted on 09/21/2018 1:36:48 PM PDT by Dr. Sivana (There is no salvation in politics.)
[ Post Reply | Private Reply | To 10 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson