russ_watters's latest activity
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russ_watters reacted to Lnewqban's post in the thread High School Fan is pushing in the front and sucking from the back with
Like.
The blades of any type of fan transfer kinetic energy into the mass of gas that is surrounding them. That energy is observable as... -
russ_watters reacted to berkeman's post in the thread High School Fan is pushing in the front and sucking from the back with Like.
Cheaper fans use flat blades at an angle. Better fans use airfoils at an angle (like a propeller). Here is a good PF Insights article...
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russ_watters replied to the thread High School Fan is pushing in the front and sucking from the back.Yes, though for your typical desk or central air conditioning fan the air can be considered incompressible for calculation purposes...
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russ_watters replied to the thread High School Fan is pushing in the front and sucking from the back.Yes. I'm not sure what sort of answer you're looking for with that question. The blades are curved to force air to move in a preferred...
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russ_watters reacted to jrmichler's post in the thread Thermal mass flow sensor vs. thermal flux sensor with Like.
Thermal mass flow sensors measure mass flow, normally of a gas such as air. The output has units of mass per time, such as kg/sec...
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russ_watters replied to the thread Windows 10 Now Not Supported.It's a massive security risk and a conscious choice to avoid it. The Target hack 10 years ago happened because an HVAC controller was...
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russ_watters replied to the thread Windows 10 Now Not Supported.Only for computers connected to the internet.
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russ_watters reacted to Averagesupernova's post in the thread Why must residential electrical systems be connected to Earth (soil)? with Like.
I already told you I was not going to chase every link you provide. - What you are describing I already described in post #30.
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Is this the same reason why Japan used floppy disks well into the 2010s and part of the 2020s for government affairs...
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Yeah. When I was doing my PhD our desktop machines were Pentium IIs running Windows 98 or 2000, but we still had 386s and 486s in the...
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russ_watters replied to the thread Windows 10 Now Not Supported.There's millions of headless PCs doing industrial controls and front ends that don't ever get software upgrades and run for decades.
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russ_watters reacted to DaveE's post in the thread Why must residential electrical systems be connected to Earth (soil)? with Like.
This!!! RCD/GFCI should not be used as primary protection. They are an additional safety feature which simply isn't as reliable as good...
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russ_watters reacted to Averagesupernova's post in the thread Why must residential electrical systems be connected to Earth (soil)? with
Wow.
I don't intend to chase every link you provide since there are endless misconceptions with someone either spouting off how they think it... -
russ_watters reacted to PeroK's post in the thread Alien life, probabilities, and interstellar propagation of human life with
Love.
YouTube was inspired by this thread and served up Interstellar Overdrive by Pink Floyd: -
russ_watters reacted to PeroK's post in the thread Alien life, probabilities, and interstellar propagation of human life with
Haha.
I guess you are right. Just a few days ago, almost 100,000 cricket fans packed into the Melbourne Cricket Ground (MCG). If you can...