User Tag List
Results 106 to 120 of 156
Thread: More mathematics of electricity
-
09-05-2025, 12:01 AM #106
7000 RPM
- Join Date
- Apr 2001
- Location
- Central Florida
- Posts
- 2,666
- Thanks (Given)
- 9
- Thanks (Received)
- 41
- Likes (Given)
- 35
- Likes (Received)
- 251
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
BYD sells a lot of electric cars in Europe so they must meet some reasonable set of safety standards. Pretty sure they have been outselling Tesla for the last year or so for whatever that means. They are a more basic and less expensive auto so that just might be what the consumers need.
-
09-05-2025, 09:08 AM #107
Team Member
- Join Date
- May 2009
- Location
- Santa barbara, ca/boulder city, nv
- Posts
- 2,294
- Thanks (Given)
- 704
- Thanks (Received)
- 135
- Likes (Given)
- 917
- Likes (Received)
- 518
- Mentioned
- 7 Post(s)
- Tagged
- 0 Thread(s)
True, but a little perspective... BYD is often cited on the BEV fanboi sites as being ground breakers in solid state batteries (didn't Cudes say that they are already operating 750 mile ranges all over China or something like that?), and battery tech in general. So it's worth clarifying that these are NOT solid state battery cars or even some kind of super tightly packed, 350Wh/kg lithium ion, either. They are what you say the are: more basic and less expensive.
***
So Cudes, I don’t know where you cut and pasted these figures from, but we might as well take this opportunity to straighten out some commonly misused and misunderstood terminology.
The units energy over mass, such as Wh/kg are NOT “energy density”. In physics and engineering, units of energy over mass, such as Wh/kg, are specific energy, not “energy density”. For energy density, think of it like regular density. Regular density like you learn in primary school, (or do Americans learn it in secondary school?), is mass over volume. So energy density properly understood and used, would be something like Wh/cubic meter or cubic centimetre or such.
Armed with the his knowledge, when you read from sources that misuse or misunderstand energy density and confuse it with specific energy, you should approach everything else you learn from that site with a critical eye.
HTH
-PeterLast edited by pcrussell50; 09-05-2025 at 09:43 AM.
"padded wonder"
__________
the wet:
18’ Bahner bow rider, 2.4/200
Hydrostream Viper, 140 v4 crossflow, some Raker props
16' Baja/Tahiti/Sidewinder clone, 135 v4 crossflow
17' boston whaler alert, 90 merc fourstroke
13' boston whaler, 40hp yamaha
the dry:
2003 bmw ///M5
1993 mustang/griggs racing road race car
and a handful of clunkers
-
NICE PAIR liked this post
-
09-05-2025, 10:24 PM #108
Member
- Join Date
- Oct 2023
- Location
- East coast
- Posts
- 60
- Thanks (Given)
- 0
- Thanks (Received)
- 14
- Likes (Given)
- 1
- Likes (Received)
- 22
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
-
09-06-2025, 06:35 PM #109
Team Member
- Join Date
- May 2009
- Location
- Santa barbara, ca/boulder city, nv
- Posts
- 2,294
- Thanks (Given)
- 704
- Thanks (Received)
- 135
- Likes (Given)
- 917
- Likes (Received)
- 518
- Mentioned
- 7 Post(s)
- Tagged
- 0 Thread(s)
Last edited by pcrussell50; 09-07-2025 at 10:51 AM. Reason: Shortened cut out some repetitive stuff
"padded wonder"
__________
the wet:
18’ Bahner bow rider, 2.4/200
Hydrostream Viper, 140 v4 crossflow, some Raker props
16' Baja/Tahiti/Sidewinder clone, 135 v4 crossflow
17' boston whaler alert, 90 merc fourstroke
13' boston whaler, 40hp yamaha
the dry:
2003 bmw ///M5
1993 mustang/griggs racing road race car
and a handful of clunkers
-
NICE PAIR liked this post
-
09-09-2025, 10:15 AM #110
Screaming And Flying!
- Join Date
- Mar 2008
- Location
- Tourist Trap, Florida
- Posts
- 15,055
- Thanks (Given)
- 406
- Thanks (Received)
- 1448
- Likes (Given)
- 5997
- Likes (Received)
- 11656
- Mentioned
- 2 Post(s)
- Tagged
- 1 Thread(s)
Wound up tighter than a cuckoo-cuckoo clock...
83 V-King, 96 Mariner, ff block 2.5 w/a 28p chopper
Ain't it great to have papa TRUMP back at the helm?
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
-
NICE PAIR liked this post
-
09-09-2025, 07:19 PM #111
Could you charge a battery with hot air? (lots of it!)
Wriggleys gum makes me think of boating, "Double your engines, Double your fun"
-
09-09-2025, 10:00 PM #112
Member
- Join Date
- Oct 2023
- Location
- East coast
- Posts
- 60
- Thanks (Given)
- 0
- Thanks (Received)
- 14
- Likes (Given)
- 1
- Likes (Received)
- 22
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
-
09-09-2025, 10:30 PM #113
-
NICE PAIR liked this post
-
09-10-2025, 12:54 PM #114
Member
- Join Date
- Oct 2023
- Location
- East coast
- Posts
- 60
- Thanks (Given)
- 0
- Thanks (Received)
- 14
- Likes (Given)
- 1
- Likes (Received)
- 22
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
-
John S liked this post
-
09-10-2025, 01:07 PM #115
Member
- Join Date
- Oct 2023
- Location
- East coast
- Posts
- 60
- Thanks (Given)
- 0
- Thanks (Received)
- 14
- Likes (Given)
- 1
- Likes (Received)
- 22
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
-
John S liked this post
-
09-10-2025, 08:02 PM #116
Member
- Join Date
- Oct 2023
- Location
- East coast
- Posts
- 60
- Thanks (Given)
- 0
- Thanks (Received)
- 14
- Likes (Given)
- 1
- Likes (Received)
- 22
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
-
09-10-2025, 08:20 PM #117
-
NICE PAIR liked this post
-
09-10-2025, 11:35 PM #118
Member
- Join Date
- Oct 2023
- Location
- East coast
- Posts
- 60
- Thanks (Given)
- 0
- Thanks (Received)
- 14
- Likes (Given)
- 1
- Likes (Received)
- 22
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
Even Saudi Arabia knows better.
Oil Giant Saudi Arabia Is Emerging as a Solar Power
-
09-10-2025, 11:40 PM #119
Member
- Join Date
- Oct 2023
- Location
- East coast
- Posts
- 60
- Thanks (Given)
- 0
- Thanks (Received)
- 14
- Likes (Given)
- 1
- Likes (Received)
- 22
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
As opposed to subsidized oil? Besides, you people bitch about paying to much taxes all the time. When you buy a solar system for your home, you only get a tax credit if you paid income taxes. And only for the amount of taxes you paid over 5 years or up to 30% of the system cost. It's your money. It doesn't actually come from other peoples taxes. It's like a business writes of business expenses to reduce their tax burden. You write off your solar system from your taxes. I got my system a long time ago. It has been great! I produce plenty more than i use. No money down and my bill went down 20% from what it was. Plus, with electric prices soaring, mine will not change.
US Taxpayers Will Pay Billions in New Fossil Fuel Subsidies Thanks to the Big Beautiful Bill | WIREDLast edited by fixer68; 09-11-2025 at 12:08 AM.
-
CUDA liked this post
-
09-11-2025, 12:13 AM #120
-
NICE PAIR liked this post
Similar Threads
-
complete electricity 280 ros search
By double impact II in forum Outboard EnginesReplies: 0Last Post: 08-24-2024, 02:54 PM -
Solar - Water Heating & Electricity discussion
By Stoker1 in forum The Scream And Fly LoungeReplies: 20Last Post: 04-25-2013, 10:40 AM -
How much electricity and gas does Al Gore Use?
By beer30 in forum The Scream And Fly LoungeReplies: 11Last Post: 03-03-2007, 07:25 PM -
Mathematics of the married man!!!
By The Big Al in forum The Scream And Fly LoungeReplies: 8Last Post: 02-09-2007, 06:04 AM -
Mathematics for cc ing heads.
By DUCKY in forum Technical DiscussionReplies: 7Last Post: 04-27-2002, 10:16 PM