Si Derived Unit Puns

I'm working on a project that's trying to normalize every use of a derived SI unit into it's corresponding base SI units. I know that SI forbids using multiple prefixes in a unit, hence this scenario:

Given 1 N = 1 kg * m / s^2 what would 1 kN expand to?

• 1 Mg * m / s^2 or
• 1 kg * km / s^2 or
• something else?

Thanks in advance!

It has been a few years since I studied any physics, but this question bugged me at the time. Wikipedia surfing I came across Kelvin and thought I'd ask the smart people at Ask Science if they can explain it to me.

The way I (most probably incorrectly) see it is that units such as time and mass are base units because the units for how much mass a piano has can only be in units of mass (one unit, normally Kg) and how much time it takes for said piano to fall to the ground also only has one unit, normally seconds. There is no other unit that would define these properties of time and mass without the units for time and mass existing.

If temperature is an average measure of heat/thermal energy, or involves being part of a calculation of energy in a system, then could it not be defined in terms of energy when placing units after it?

I did do a bit off googling before asking and didn't find anything that answered this/I could understand, but if there is an obvious answer out there already, please direct me towards it!

Many thanks :)

Incase it isn't clear from my poor use of language, this question is not about why Kelvin specifically is the base unit for temperature, rather why any unit of temperature should be a base unit as opposed to derived. I'm also not trying to be controversial, I'm sure there is a good reason, that is the reason why I am asking!

TL;DR: Read the title of the post

Currently reading "Understandable Electric Curcuits" by Meizong Wang and it appears strange to me that charge is derived off current. Shouldn't it be the other way around?

There are only 7 SI base units, so are all other units we use in science, and other disciplines as well, derived from these 7 units?

Are there any other internationally recognized collection of units used that are outside of the SI system?

Edit: Link to SI derived units and Natural units

Edit2: military units

https://preview.redd.it/5cehigdui2571.png?width=886&format=png&auto=webp&s=1ab7619cdd59b033b841489270e30026d2f4f4f5

The answer appears to be A, which seems like the base SI unit for lambda (wavelength), but I'm not sure if that's the correct way to approach this. How would you get to this answer?

I hate the Stock Nav head unit that comes on the 2015 SI. I want to change mine out but have found little online on what people have done. I’d like to keep the original carbon fiber dash plate. Any recommendations or options would be great

Why YSK: The FDA considers antiperspirants as drugs as they prevent perspiration. The only active ingredients approved in the United States in the OTC monograph are all aluminum derived. So in the United States, anything that is “aluminum-free” is a deodorant and will only cover up the scent, but does nothing for sweat prevention, which causes the bad smell in the first place. Any company that tells you their aluminum-free deodorant is an antiperspirant is making either a mislabeled claim, or might be adulterated depending on the situation the FDA deems fit.

OTC monograph active ingredients

Charge(q) = Coulomb (C)

e = 1.6x10^-19

Force(F) = Newton(N)

Electric Field(E) = Newton/Coulomb (N/C)

Dipole Moment(P) = Coulomb-metre (Cm)

Electric Flux(Φ) = Newton-metre^(2)/Couloumb (Nm^(2)/C) or Weber (W)

Work Done (W) = Joules(J)

Energy(E) = Joules(J)

Torque (τ) = Newton-metre (Nm)

Electric Potential(V) = Joules/Couloumb (J/C) or Volts (V)

Capacitence (C) = Faraday (F)

Linear Charge Density(λ) = Coulomb/Metre (C/m)

Surface Charge Density(σ) = Coulomb/Metre^(2) (C/m^(2))

Current(I) = Ampere (A)

Resistance(R) = ohm (Ω)

Drift Velocity(Vd) = Metre/second (m/s)

emf (ε) = Volts (V)

Current density (j) = Ampere/Metre^(2) (A/m^(2))

Mobility(μ) = metre^(2)/Voltage-sec (m^(2/)Vs)

Power(P) = Joules/Second (J/s) or Watt (W)

Temparature (T) = Kelvin (K)

Magnetic Field (B) = Tesla (T)

Angular Frequency (ω) = radian / second (rad/s)

Inductance = Henry (H)

Capacitence = Faraday (F)

Inductive Reactance (XL) = ohm (Ω)

Capacitive Ractance (XC) = ohm (Ω)

If I missed anything or something is incorrect, mention it in the comments.

:)

I’m not exactly much of a measurement enthusiast, but after watching a particular YouTube video on a joke measurement system, I started to think about other funny derived units and what hypothetical use they might have (even if these hypothetical uses aren’t the most realistic, because again, I’m not a measurement expert)

So, what crazy multipliers of units do you want me to think of a hypothetical situation for? Here are two of my own examples:

Celsius per minute per Celsius ((°C/min)/°C): A sphere of ice lies at the center of a chamber of slow-moving particles. Both the ice and the particle chamber start at 0 °C, which keeps the ice right between solid and liquid phase. When someone puts a bit of energy into the water and heats it up 1 °C, a chain reaction begins where the now-melted water molecules bounce off the particles in the particle chamber. The particles then start bouncing off each other, causing the temperature of the particle chamber to increase by 1 °C every minute. A one-way piping system inside the chamber prevents the water from being heated by this interaction, so the water remains at 1 °C while the bouncing particles continue to heat up. If the water is initially heated to 2 °C, then the bouncing chain reaction will occur twice as fast and the chamber will heat up at a rate of 2 °C per minute. This chamber always heats at a rate of 1 (°C/min)/°C, which means that for every 1 °C put into the water, the rate of heating increases by 1 °C/min. Different models of this chamber would heat at different (°C/min)/°C rates- for example, if you had a chamber that heats at 5 (°C/min)/°C and you heated the water inside to 10 °C, then the chamber would start heating up at a whopping 50 °C/min.

Kilogram-seconds per liter-dollar (kg⋅s/(L⋅$)): A hypothetical gasoline-powered robot arm for use in factories has a lifting strength of 1,000 kg⋅s/L, meaning that for every liter of gasoline you put into the robot arm, it can lift a weight of 1,000 kg for one second (or a weight of 500 kg for two seconds, or a weight of 2,000 kg for half a second, or a weight of 10 kg for a hundred seconds, etc.). The makers of these robot arms then start selling them to factory owners, who try to figure out what the best deal is by using the unit kg⋅s/(L⋅$). For example, if one seller is selling these robot arms at 0.1 kg⋅s/(L⋅$), that means that a robot arm that has a lifting strength of 1,000 kg⋅s/L will cost the factory owne

NIST has just updated its metric writing guide Writing with SI (Metric System) Units

Some points it raises:

• The guide emphasises American spelling:

>NIST guides use American spelling. All units and prefixes should be spelled as shown in this guide. Examples: meter, liter, and deka, NOT metre, litre, and deca.

• The guide mentions that "degree centigrade" and "micron" are not to be used and recommends "metric ton" rather than "tonne".

• Under the heading Paper Sizes it says "The International System of Units (SI) is about measuring the weight or dimensions of objects, not changing their sizes. The U.S. paper industry uses several customary paper formats that all have metric dimensions." So they are not promoting the ISO 216 metric paper series.

Hi, everyone! So, I'm a volunteer firefighter with an interest in hazardous materials response. One of the aspects that I've always wondered about is the radiological side of things. I've done extensive research into nuclear disasters such as Chernobyl and Fukushima and have always pondered this question. I'd greatly appreciate it if someone could help me out.

a complete pdf full of just S.I units of all the stuff would be really useful

Does anyone have a recommendation for a library that deals with SI units? I found a few ideas here:

https://github.com/bernedom/SI

https://benjaminjurke.com/content/articles/2015/compile-time-numerical-unit-dimension-checking/

thanks!

Title
Like electric flux etc,,
Cause I cant memorize em all, so want to prioritize