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raincom

3,513 karma · joined September 16, 2014

glad.gift6991@fastmail.com
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raincom··on How Delhi cut electricity loss from 50 to 5 percent
Yes, "old city" stories!!
raincom··on Apple's New CEO Moves to Overhaul Company to Run Faster and Leaner
His compensation is tied to the stock price. So, expect him to make changes.
raincom··on Replacing the old battery on rechargeable bike lights
which particular heat pump was it?
raincom··on Did Anthropic's A.I. Really Make a Scientific Discovery on Its Own?
https://archive.is/omUwZ
raincom··on How I changed teaching after AI managed to do all my homework assignments
AI is great for those who want to learn. Earlier, one has to find all relevant books, search specific forums, or use google in order to find answers to questions that teachers or fellow smart-students find silly. Even if AI gives false answers, it is better than having no answer. At least, the search space to find an answer is reduced.
raincom··on An airport cooled by natural ventilation
pressure reducing is a key element here. In HVACs, they use metering devices to reduce the pressure of the refrigerants.
raincom··on The Secret Life of Circuits
Their refrigeration 101 is a good one: https://www.youtube.com/watch?v=4U-XG7cY7bI
raincom··on Executive order on H-1B nonimmigrant visa administration
Indian outsourcing companies such as TCS, Infosys, Wipro, Cognizant, etc., have a negative impact on contracting rates. These companies just underbid for the onsite contractor roles, so it is a race to bottom. Have you noticed all those emails from recruiters for $55 dollars on W2 in California for some contract role through TCS, Infosys, ..
raincom··on Dacia CEO: Sales of new cars are falling because they're too expensive
Classic example of "Demand destruction". That's what inflation does.
raincom··on I spent $220 on Google app ads and 60% of the installs were robots
If one runs a small business, one has to pay Google/Meta; otherwise, their businesses will be bottom of the search. It is a tax now.
raincom··on Leaving VMware just got harder after Broadcom pulled VDDK downloads
When one becomes too comfortable with one vendor way of doing things, you end up paying 10's of millions of dollars in the end. Move the work loads to KVM, and invest in your own employees, and you can migrate off of VMware easily.
raincom··on UC Berkeley indefinitely suspends international student work authorizations
So, this is not about OPT, but CPT. Many from various schools have abused CPT; so, they want to put to close that loophole. Some real ones get affected by this because of others' actions.
raincom··on Bhartrhari's Paradox
If 'it' is unnameable, there is no way to circumscribe or even describe what 'it' is. Even to show that what it refers to is an empty set, we need its description. If we use concepts like intention and extension, we can sketch out four scenarios:

extension, no intension (yes, we can point out things, which we can't describe)

extension, intension (we point out, and we describe)

no extension, intension (Yes, we can imagine and describe things vividly, but no referent in the world. Here, one can say these things exist in a Platonic world, but not the world we live in; this is where numbers, sets, ideas can exist. Neo-Platonism in Philosophy of Mathematics)

no extension, no intension (this paradox falls in this area).

raincom··on Air Conditioning Is Not a Luxury, It Is a Necessity
Heat pump = conventional AC - (heat strip/gas burner) + reversing the refrigeration circuit for the heat cycle + efficient ECM motor (for air blower) + VFD compressor (single phase to DC to three phase AC with variable frequency) + modern controls to manage both inside and outside motors.

One can install an efficient AC unit with electric strips (gas burner) with "efficient ECM motor (for air blower) + VFD compressor (single phase to DC to three phase AC with variable frequency) + modern controls to manage both inside and outside motors." That's where modern AC units are driving at.

Heat pump uses electricity for compressor fan and fan in that outdoor unit. In an efficient conventional AC unit, one trades the extra electricity used in the outside unit for the electricity used for heat strips.

Geothermal heat pump is efficient and is a different ball game.

raincom··on Air Conditioning Is Not a Luxury, It Is a Necessity
Service technicians hate fences unless they are easy to remove during a service call. Honestly, esthetics is not as much concerning as the noise from compressor and condenser fan. I stayed in an AirBnb, where the outdoor unit next to the bed room, and I couldn't sleep.
raincom··on Air Conditioning Is Not a Luxury, It Is a Necessity
They just buy slogans from those who espouse efficiency.

In a traditional AC unit, heat is produced by either electric strips or by a gas burner, no refrigeration circuit is involved in the heating cycle. So, just a blower motor runs, compressor (and condenser fan) never runs in the heating cycle.

In heat pumps, refrigeration circuit does both heating and cooling. So, compressor works in both cycles.

raincom··on Air Conditioning Is Not a Luxury, It Is a Necessity
"advanced" is about motors (blower motor and compressor) and their controls. The context is repairs: https://www.youtube.com/watch?v=iqzEIPEky1s
raincom··on Air Conditioning Is Not a Luxury, It Is a Necessity
I won't say "less power consumption". Definitely, not more consumption if efficient controls and motors are used (ECM motors for air handlers, VFD compressors).

The real problem is the repair costs of these advanced units in the developed countries. Carrier wanted $8k for a new control board for a residential unit in the US. Same thing for ECM/VFD.

raincom··on Air Conditioning Is Not a Luxury, It Is a Necessity
Fencing AC units is a very bad idea, as they just cause air flow problems. After all, air and refrigerant circuit exchange heat.
raincom··on A California Program Is Bringing Down the Cost of Heat Pumps by Buying Bulk
If they want to drive electric cars, they need a panel upgrade too. Just combine everything in one go.
raincom··on A California Program Is Bringing Down the Cost of Heat Pumps by Buying Bulk
Which system did you install? Who installed? DIY or a contractor?
raincom··on U.S. debt-to-GDP ratio reaches 123%
As long exporter nations want to swap their real assets with digits (US dollars), US is solvent.
raincom··on A.I. companies are recruiting electricians and carpenters by the thousands
When PE has taken over trades, it still is a good option to become a quality tradesman, who can start his own business. Quality = higher premium, high end.
raincom··on This July I Was Fired from Simple AI (A Deeply YC Company)
If you are looking for your next job, just consider that your future employers will read your blog and your comments here. Since you consider yourself as a CEO type, you are fine, then. However, when you want to raise money from VCs, the latter can also read your comments.
raincom··on OverpAId – Fire your CEO. Hire the future
RICO statues are slapped against a specific set of people: Mafia. Without RICO, you can't just percolate up the culpability to the CEO without a solid proof. The issue here: laws, courts, how courts look at evidence. With RICO, the bar is lower.

In any large organization, there is a legal department, there is a chief legal office/General counsel. These guys train CEO enough how to pass down messages. When I was a salesman, my training team and my managers never told us to lie. However, the pressure tactics they use force sales people to lie. That's how things work.

Even if some assistant attorney/prosecutor wants to use RICO, he/she will be overruled in the same department.

raincom··on OverpAId – Fire your CEO. Hire the future
The issue is who should one prove the culpability to? As long as the board of directors agree that CEO earned the credit for all things good, he/she will get a fat bonus. For culpability, it is the jury/judge, where things are quite strict; otherwise, it is very easy to convict.
raincom··on OverpAId – Fire your CEO. Hire the future
That requires a change in criminal law, with an exception of RICO. However, the DOJ will not use RICO against the elite class, as ex-prosecutors end up working for the same elite through law firms.
raincom··on OverpAId – Fire your CEO. Hire the future
If a business is a two person shop, it is very easy to prove the culpability of a CEO. However, in a large corporation, it is very hard to prove the culpability of a CEO, as too many people are involved. That's why you see small business owners are easier to prosecute than CEOs of larger corporations.
raincom··on AI Could Shrink Income Tax Revenue and Threaten Economies
Reduce the cost of living accordingly. If people make $500K per annum, average 1000 sq ft home goes for $2M.
raincom··on In Germany if you say a restaurant is just ok they send the gestapo after you
Yes, 99 percent of reviews are paid directly or indirectly. Mattress reviews are the worst offenders, as they are paid by mattress companies.
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