I am a member of The Church of Jesus Christ of Latter-day Saints. Well-meaning members of my church occasionally make declarations that a testimony of the divinity of Jesus Christ and the truthfulness of his gospel can only come through the Holy Ghost — and… Read more
To my brothers and sisters in Jesus Christ . . . The Ten Commandments were given by Jehovah to the Children of Israel, as recorded in the Old Testament, Exodus 20. * * * Exodus 20 [1] And God spake all these words, saying, [2]… Read more
Perhaps the most difficult commandment is to forgive those who have hurt us. We often hope that some calamity or punishment will fall upon them. There is a German word “Schadenfreude.” It means pleasure derived from the misfortunes of others. The Lord has warned us… Read more
How many times should we help our brother or neighbor? I do not have the answers… but here is my attempt… * * * I have friends who live in countries where there is government corruption, civil unrest, theft, robbery, shortages of fuel, food, and… Read more
Dragon Cargo Spacecraft Berths with International Space Station To Sam DiMaggio, Jessica Jensen and all my colleagues at SpaceX… Very Well Done! Great day for America’s commerical space industry! I am pleased that Sam and his engineering staff use my Vibrationdata software and tutorials in… Read more
Question: MIL-STD-810G, Method 526 Rail Impact, outlines the physical test of an actual system at 4, 6, and 8 mph. Is there an equivalent laboratory shock test for equipment which is to be transported via railroad car? Answer 1: from Tom Irvine U.S. Army TB… Read more
Severe vibrations likely brought down N. Korean rocket By George Leopold 4/13/2012 3:15 PM EDT WASHINGTON – The failure of North Korea’s three-stage Unha-3 rocket on Thursday (March 12) was most likely caused by severe vibrations at an early point in the flight trajectory known… Read more
As I translate the Book of Mormon into Hebrew, I reuse the translated phrases as they reoccur. The following summarizes the Book of Mormon via a composite of reocurring phrases. The number of occurrences in noted in parentheses……… The Book of Mormon gives Christ’s invitation… Read more
The 2012 Spacecraft and Launch Vehicle Dynamic Environments Workshop will be held in El Segundo, California, June 19-21. The conference information is give at: Workshop Link I will present a paper: An Alternate Damage Potential Method for Enveloping Nonstationary Random vibration I hope to see… Read more
Consider a single-degree-of-freedom (SDOF) system subjected to base excitation. There are certain cases where the response of a system is known, but the base input acceleration is unknown. An example would be a seismic sensor which behaved as an SDOF system. The seismometer data would… Read more