I checked with UNO on the status of their summer events. At the moment, they have cancelled all campus events through June 30 (GPSL session at UNO is July 10). The person I'm working with does not

DUH?! I shouldn't be reading charts at like 3 AM. UG! Thanks to all who answered my BrainFart! Joe WB9SBD The

Run time to a 24 volt cutoff because the effects on the capacity are clearer. On the closeup graph view C1, C2 and C3 are the capacities for 2 amps, 1 amp, and .5 amp and lower. That means at this

Joe, You're just reading or interpreting the curves the wrong way. The X or horizontal axis is A-H, not run time. The greater the current, the lower the A-H time. So in your example of .5 amp versus

The discharge capacity in Ah changes a little, due to internal I2R losses, so you get a bit more Ah from lower currents vs higher currents. That's also why the voltage is a bit lower. It's not

Joe, The graph that you have shared has the horizontal axis in units of Ah (Ampere*hours) not in hours. It is fine. This means that all current draws are about 7.5 Amp hours with the smaller draws

I am very confused on a battery pack. Say you have a pack that can run 1 amp of current draw for 10 hours. One would think that if you only drew 0.5 amps that it

I think it sounds like a Great idea. Hope every one on here is ok group kind of died this week! Stan

I thought I read at one time that some were thinking about doing this. MN starts distance learning on March 30 as do many other states. We would love to build some lessons around it for our students.

I have a lightaprs w I just received and am working on programing it. I down loaded and installed the driver, installed the latest Arduino pgm. As instructed I open Arduino

This conversation reminds me of some work my students did several years ago. Attached are a few slides from our presentation at the 2013 GPSL in Pella. That work was inspired by Ron K6RPT's long

I was just wondering what the tensile strength on the average actually was. So then even when fully inflated how much pressure it could actually generate before failing.

Joe, When you say "many many" I'm curious why you did those tests? Any special reason other than curiosity? Do you have any tables or graphs you could provide, or write up for this

Another important factor to consider is the variation in temperature between the day and night, since many materials are known to act differently in different temperatures. For

I think another interesting category would be "most horrible launch conditions, but still got a pico to float".  I'm sure the weather won't be perfect for everyone, if we're doing this from "all

Finally, Some evidence, But not totally also. I wonder how must is lost when the latex is NOT stressed? Like stretched ONLY to 50% elongation.

I have been doing this for over 30 years, And I have heard people make these statements probably a thousand times, but I have yet so see some actual real evidence of it.

Here is your answer Examining the Effects of UV on Latex and Nitrile Glove ... digitalcommons.unl.edu › cgi › viewcontent

It's obvious that there is enthusiasm for a virtual GPSL for this year if it should be necessary. I will be contacting UNO in the near future to see if they have already made decision about the

It Is a FACT!! n There is all kinds of information on it.