Image 1 — Addition to "Alumnus-Endorsed" Swag
Image 2 — Addition to "Alumnus-Endorsed" Swag
▲ 23 r/Caltech

Addition to "Alumnus-Endorsed" Swag

My daughter pointed me to this artist (who focuses on cats and rabbits and such) and I found this in the collection.

Now officially endorsing it as valid Swag as a certified Caltech Alumnus. Goes right next to my Alumnus-endorsed mug and Alumnus-endorsed drink of graduates. All of them sitting on my Alumnus-endorsed food of champions.

If you want swag that is Administration-endorsed [...boring...], see the Caltech store: https://caltechstore.caltech.edu. ;-)

Artist site: https://artbyjulia.co/

u/parseroo — 10 days ago
▲ 53 r/Rivian

Palo Alto Police Department adding two more Rivians to its fleet

«The Palo Alto Police Department Is adding two more Rivians to its fleet, including the first electric vehicle that will be used for patrols. Each Rivian costs $79,885, plus $36,600 to outfit with bulletproof doors, electrical upgrades, police lights and a camera, computer, modem and radio.»

See page-2 article of attached paper for more details.

issuu.com
u/parseroo — 10 days ago

One Pill More

For a bit of whimsy…

Recently I missed one of my morning pills and while going back to take it, the tweaked line “One Pill More” (from Les Misérables “One Day More”) came to mind.

With five voiced parts, here are revised lyrics to One Day More possibly appropriate to anyone having to comply with a difficult drug regimen. Ends with Éponine's part as that seemed appropriate.

Possible singers to imagine for this One Day More! — 10th anniversary

[A] One pill more
[A] Another pill, another effect on me
[A] This never-ending road to recovery
[A] The doctors who seem to know my life
[A] Will surely prescribe me more next time

[A] One pill more
[B] I would have died before today
[B] How can I live with out this treatment?

[A] One pill more
[B&C] Tomorrow I’ll [you’ll] be here to stay
[B&C] And yet each day, my [your] world has started

[D]  One more pill in the early morn
[E]  Will they ever go away

[D] One more pill to end my day with
[E] They will always be with me

[D] What a life I have right now
[E] And I swear I will be true

[D] But at least I am alive
reddit.com
u/parseroo — 13 days ago

Repost: At approximately 2:40 p.m. on July 29, Palo Alto Firefighters…

At approximately 2:40 p.m. on July 29, Palo Alto Firefighters, Rangers and Police responded to a vegetation fire in the Palo Alto Baylands that burned approximately ¼ of an acre. The fire is out; no injuries or structures were involved.

July 29 Temporary Closures:

  • Embarcadero Road to the Sail Station Parking Lot
  • The Sail Station Dock
  • A section of the Marsh Front Trail between the Nature Center and Sail Station

Follow alerts <https://www.paloalto.gov/baylands/> for updates to the closures.

City of Palo Alto

u/parseroo — 22 days ago

Packout Portable Electrical System

I did a pass at a Portable Electrical System (storage, charging, and distribution) leveraging the Milwaukee® Packout™ storage system.  The main benefits of this approach are:

  • A very high level of portability (weight, transportability, weather resistance, etc.)
  • Flexibility in configuration
  • Good maximum power output (about 7.5kW)
  • Good storage (10 kWh).

The approach seems to be a bit different from anything I have seen online, so I wrote it up. The introduction is below and a link to the whole writeup is here: https://kwhik.com/piece/2026/06/17/packout-electrical.html#introduction

The following two images provide the general concept and approach:

https://preview.redd.it/od43ldlip49h1.png?width=480&format=png&auto=webp&s=a40037aa306efd22fce8548fd350ebab4da1d66a

https://preview.redd.it/cu244uegp49h1.png?width=420&format=png&auto=webp&s=820c4decf1762fdbfb0e018ac7fa3a7e4eb5c5cd

Introduction

There are a number of tradeoffs in the different approaches to building an electrical system (defined as a system that has electrical storage, charging, and distribution).

  • An all-in-one portable generator provides many desirable features in a relatively small form factor.
  • A larger ‘installed’ system can have higher capacities for both power and storage.
  • A ‘dolly’ combines some of the higher capacities into a somewhat moveable chassis.

With each of the benefits of the approaches just mentioned, there are potentially corresponding penalties to price, flexibility, portability, and so on.

[…]

Approach

A core approach described herein is to leverage an unusually good match between the dimensions of the Packout™ Compact Tool Box (“Ammo Box”) and the size of the 206Ah LiFePO4 prismatic cell. Four 206Ah cells easily fit in width, height, and depth within the compact toolbox. This produces a 12V nominal battery with room for a BMS on top and connectors in the forward section.

[…]

Continued here: https://kwhik.com/piece/2026/06/17/packout-electrical.html#introduction

reddit.com
u/parseroo — 2 months ago

Packout Portable Electrical System

I did a pass at a Portable Electrical System (storage, charging, and distribution) leveraging the Milwaukee® Packout™ storage system.  The main benefits of this approach are:

  • A very high level of portability (weight, transportability, weather resistance, etc.)
  • Flexibility in configuration
  • Good maximum power output (about 7.5kW)
  • Good storage (10 kWh).

The approach seems to be a bit different from anything I have seen online, so I wrote it up. The introduction is below and a link to the whole writeup is here: https://kwhik.com/piece/2026/06/17/packout-electrical.html#introduction

The following two images provide the general concept and approach:

https://preview.redd.it/cu244uegp49h1.png?width=420&format=png&auto=webp&s=820c4decf1762fdbfb0e018ac7fa3a7e4eb5c5cd

https://preview.redd.it/od43ldlip49h1.png?width=480&format=png&auto=webp&s=a40037aa306efd22fce8548fd350ebab4da1d66a

Introduction

There are a number of tradeoffs in the different approaches to building an electrical system (defined as a system that has electrical storage, charging, and distribution).

  • An all-in-one portable generator provides many desirable features in a relatively small form factor.
  • A larger ‘installed’ system can have higher capacities for both power and storage.
  • A ‘dolly’ combines some of the higher capacities into a somewhat moveable chassis.

With each of the benefits of the approaches just mentioned, there are potentially corresponding penalties to price, flexibility, portability, and so on.

[…]

Approach

A core approach described herein is to leverage an unusually good match between the dimensions of the Packout™ Compact Tool Box (“Ammo Box”) and the size of the 206Ah LiFePO4 prismatic cell. Four 206Ah cells easily fit in width, height, and depth within the compact toolbox. This produces a 12V nominal battery with room for a BMS on top and connectors in the forward section.

[…]

Continued here: https://kwhik.com/piece/2026/06/17/packout-electrical.html#introduction

reddit.com
u/parseroo — 2 months ago

Weight limitations in stack: 4x Compact Tool Box (Ammo Style)

The Compact Tool Box has a weight limit of 75lbs: how is that related between:

  • Weight inside the tool box
  • Weight on top of the tool box

Say each tool box had 50lbs inside it, but were stacked two-high and side-by side for a total of 200lbs (say with a large toolbox at the top, minimal weight). Would the compact tool boxes do OK in the stack? Presumably each box is fine on its own and they would be trapped at the bottom and top, but I am not sure if this would ultimately be unstable for some reason.

Currently I only have one-layer and wanting to add another layer. Could also put full-width toolboxes between the compact layer, which would seem structurally a bit sturdier.

reddit.com
u/parseroo — 3 months ago

So... I have a solar-powered Tesla in that it is charged primarily with solar power from an off-grid system. My adult daughter is the main driver.

I happen to drive a Big-Ass-ICE-SUV that recently decided it was very un-motivated to start. Prod it a bit, give it some time, and it would start. While I was waiting for a replacement to the 10YO lead-acid battery, I needed to jump it and was in a hurry... so... obviously a Tesla should be totally capable of doing that right? Not just one, but two battery systems, 100kWh of energy, outputs tons of power, has 12V [or 16V] terminals, ...

Well... no. My daughter said "can't do that" and so I grabbed a 12V LiFePo4 battery I had around and jumped the car with that. Bought a little jumper box so the Tesla could be friendlier to ICE vehicles that needed a jump.

End of story...

=====

Of course not... stupid Tesla has a weak-ass battery system that can't provide like 100A to a poor stranded ICE vehicle? Bet it can't power anything requiring more than an amp @ 120V either.

So given I specialize in putting solar and battery systems into boxes... and the M3 Tesla frunk is just a weirdly shaped box... I produced the bespoke 'system' shown in the slide show above.

Functionally it is a 12V 100Ah BG24 LiFePo4 battery, 500W+ AC, 2x240W DC (normally), and >12V charging source (solar or 16V+ battery source) 'generator system', but because the battery is semi-exposed it can easily source 1200-2400W DC to help jump start an ICE vehicle. Everything is bluetooth capable so can be monitored from inside or outside the car with the frunk shut.

Designed it so it simply bolts in to the car (swap out two bolts for longer version) and into other pieces. Goes in and back out of the frunk in less than an hour.

Stupid system, but was fun to deal with space constraints. Probably will move the major components into a normal toolbox build unless my daughter wants it.

u/parseroo — 4 months ago