berkeman's latest activity
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berkeman reacted to Baluncore's post in the thread 12 year old seeking feedback on multi-element blade alloy with
Informative.
Welcome to PF. The elements you add to an alloy, do not work to average all their properties. It is specific combinations of elements... -
berkeman replied to the thread Teacher taking calculus 1.Welcome to PF. :smile: What is your current teaching background? What level do you currently teach? -
berkeman replied to the thread Gamma Radiation and Electrolysis.Since the OP is no longer with PF, this thread is now closed. Thank you to all who tried to help the OP. -
berkeman replied to the thread Hobby physicist.Welcome to PF. :smile: Fixed that for you. :wink: -
berkeman reacted to Andy Resnick's post in the thread Undergrad Higher magnification calibration slide with
Informative.
At higher magnifications, you can use targets designed for electron microscopy (that's what I use), for example... -
berkeman reacted to davenn's post in the thread Stargazing Meteor/meteorite made a big boom this morning! with
Informative.
The thread is about the Ohio event. in the area of Medina. Many samples have been recovered It did break apart and produced... -
berkeman replied to the thread Graduate Rotating Disk Method to Attain Light Speed?.Thread is closed for Moderation... -
berkeman replied to the thread "A good big man will beat a good little man" (boxing). -
berkeman replied to the thread Undergrad Higher magnification calibration slide.@Andrew Mason -
berkeman reacted to jrmichler's post in the thread Construction of a model of a hydraulic damper with
Informative.
It's not clear exactly what you are trying to do, but it sounds like you are simulating a damper, then using the results to derive a...