🎓 Doc Freemo 🇳🇱 @freemo@qoto.org

@1iceloops123 @cnx

Which white male in this cartoon am I fucking exactly?

@louisrcouture It sure is

Peace from the bottom of the sea.

#SCUBA #Dive #Diving

@voidabyss
I think the tree shown is just intended to illustrate the relationship between active religions. I agree it is missing a lot of proto-jewish religions.
@jch

There has been a lot of discussion lately, much of it just plain incorrect, about the relationship between resonance and antenna efficiency. Many incorrectly claim that resonance has nothing to do with antenna efficiency at all, similarly others incorrectly claim that resonance is a direct indication of efficiency. Neither of these statements is true. The reality is that resonance does have a significant impact on how efficient your antenna is, but the relationship is highly non-linear and depends on many characteristics.

Below I have attached a chart hat plots out the total radiation resistance (R_r) vs the measured input resistance (R_in) of a dipole. Efficiency is just R_r/R_in. In other words an efficient antenna will have 100% of its resistance as radiation resistance, and R_in is **always** larger than R_r (since it is essentially ohmic resistance plus radiation resistance). When these two numbers differ significantly an antenna is inefficient. The source for the chart below is here and it gives much of the math if you want a deeper dive:

https://nptel.ac.in/content/storage2/courses/108101092/Week-2-Dipole%20Antenna.pdf

What is important to note here is that at anti-resonance we see a **huge** R_in value and a small R_r value, this means an anti-resonant antenna will have very high losses. Keep in mind the graph is very hard to read for the values <0.5 in length because the resolution isnt high. But there is significant divergence there as well. Notice at ~5/8ths wavelength antenna would exhibit very significant internal ohmic losses due to heat.

#hamradio #rf #radio #ee #electronics #electricalrngineering @Electronics

@vriska

I am offended by this, go fuck yourself.

Holy hell this one was tricky. Just barely got it.

⬜⬜⬜⬜⬜
⬜🟨⬜⬜⬜
⬜⬜🟩⬜⬜
⬜🟨🟩⬜⬜
🟩🟩🟩⬜⬜
🟩🟩🟩🟩🟩

#Wordle 219 6/6

@CapitalB Meet women? They do that?

@sgryphon yup, same god, some minor differences in opinion mostly but same basic idea.

@Co
Red implies you are probably getting the bends and bubbles are forming

Yea green is ambient, so on the surface after a day they would be flat and green. But the chart changes at depth. Like if i dove with the bars like this all the yellow bars would go green and shrink when i dove and reappear if i surfaced again

They are generated by algorithms. The watch uses buhlman algo, the square computer is using the variable permiability model with gradiant factor (VPM+GF)

@Co the nitrogen levels in the tissues of my body. Left/top most bars are slow tissues, cells directly adjacent to cappilaries, right/bottom most are slow tissues (ones that need to diffuse through several layers of tissue). The height of the bar indicates the concentration. In this picture my fastest and slowest tissues are about equal to ambient n2 while my mid range tissues have some saturation and are off gasing their nitrogen.

@trinsec sorry its a concatenation, not a contraction :)

@trinsec
No is musslim its a contraction of mus slim. Mus itself being short for Muslim slim, which was muhamed's street name.