berkeman's latest activity
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berkeman replied to the thread Induction heating of aluminum strip possible?.I think you can just use the temperature numbers suggested by @ Baluncore above. -
berkeman reacted to Baluncore's post in the thread Induction heating of aluminum strip possible? with
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Yes, it would be my first choice for an 0.032" thick, 1" strip, that was 7 ft long. But what is the resistance of that strip? Room... -
berkeman reacted to Steve4Physics's post in the thread Looking for lab experiments for a High School Physics class with
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From what you have said, it sounds like the students are working at an introductory level. You might need to improvise a bit but here... -
berkeman replied to the thread Induction heating of aluminum strip possible?.That was my first thought as well. Seems like a natural way to do it. -
berkeman reacted to Baluncore's post in the thread Induction heating of aluminum strip possible? with
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The problem with aluminium is the electrical and thermal conductivity. I expect you could induction heat the surface of aluminium... -
berkeman reacted to Borg's post in the thread Looking for lab experiments for a High School Physics class with
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My first thought is to look in the Instructables website. A quick check show that they have a section devoted to teachers -... -
berkeman reacted to PaulHSteacher's post in the thread Looking for lab experiments for a High School Physics class with
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I teach high school physics and I am looking for simple labs for my students. The school is moving to a new location in a year or two... -
berkeman reacted to AlexB23's post in the thread Undergrad How do bar detectors work in gravitational wave detectors? with
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I think our guy is talking about Weber Bars. A precursor to LIGO, without lasers. https://en.wikipedia.org/wiki/Weber_bar -
berkeman reacted to Baluncore's post in the thread Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones with
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Compressed air flows to the foot of a pipe while the key is pressed. Each pipe generates a different note, with harmonics, called... -
berkeman replied to the thread Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones.Sorry, I have a question about the driving function of a wooden organ. What happens when the organist presses an organ key? Is there a... -
berkeman reacted to kuruman's post in the thread Angle between two alpha particle tracks due to proton bombardment of a nuclei with
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Oops, I carelessly made it look that it is useless. The second equation should be... -
berkeman reacted to kuruman's post in the thread Angle between two alpha particle tracks due to proton bombardment of a nuclei with
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I don't think it is correct to write the momentum of the proton as ##mv## because that is not the relativistic expression. You are given...