I decided to use NAND instead of NOR, but it’s effectively the same thing.

Scala:

//main
@main
def main(): Unit =
  var i = 15 //Choose any number here
  i = add(i, 1) //this increments i
  println(i)

//Adds 2 numbers in the most intuitive way
def add(a: Int, b: Int): Int =
  val pairs = split(a).zip(split(b))
  val sumCarry = pairs.scanLeft(false, false)((last, current) => fullAdder(current._1, current._2, last._2))
  return join(sumCarry.map(_._1).tail.reverse)

//Converts an integer to a list of booleans
def join(list: Seq[Boolean]): Int = BigInt(list.map(if (_) '1' else '0').mkString, 2).toInt

//Converts a list of booleans to an integer
def split(num: Int): Seq[Boolean] = num.toBinaryString.reverse.padTo(32, '0').map(_ == '1')

//Adds 2 booleans and a carry in, returns a sum and carry out
def fullAdder (a: Boolean, b: Boolean, c: Boolean): (Boolean, Boolean) =
  (NAND(NAND(NAND(NAND(a, NAND(a, b)), NAND(NAND(a, b), b)), NAND(NAND(NAND(a, NAND(a, b)), NAND(NAND(a, b), b)), c)), NAND(NAND(NAND(NAND(a, NAND(a, b)), NAND(NAND(a, b), b)), c), c)), NAND(NAND(NAND(NAND(a, NAND(a, b)), NAND(NAND(a, b), b)), c), NAND(a, b)))

//The basis for all operations
def NAND(a: Boolean, b: Boolean): Boolean = !a || !b

EDIT: replaced Integer.parseInt with BigInt(...).toInt to fix NumberFormatException with negative numbers.

try it online here

I have used Kagi for several weeks and can’t go back. I can finally find things on the internet again and I don’t want to lose that again.

https://piped.video/watch?v=YyzQsVzKylE

Lithium batteries scale power and capacity at the same time. Flow batteries can scale power and capacity independently.

The advantage of flow batteries is that they can have enormous capacities without the added cost of upgrading the power, making it ideal for grid scale storage.

Even if this new flow battery reaches the energy density of a lithium battery, and can output sufficient power, it would still need to reach price parity to be competitive.

Adequate for cargo flights, not happening any time soon for passenger flights. Aviation safety is very strict and slow to change.

Flow batteries are great for long duration storage, but not good for high power delivery.

This means they will work far better as grid storage than as EV batteries.

Xed

It opens quickly

I have a prototype self driving system in my car. It drives logically and consistently, but it doesn’t behave like a human.

This would be a really helpful feature as self driving becomes more common.

That would be a great idea, and could even help combat climate change.

A better comment would be delay in seconds as that is the one thing not obvious from glancing at the code.

The current cost to drive a car with green hydrogen from electrolysis (not blue or grey hydrogen from methane reforming) is roughly equivalent to $50/L (AUD) for petrol, or $120/Gal (USD) for gas. This is one of the reasons most hydrogen today is made from fossil fuels.

A hydrogen engine is so much worse for efficiency than a hydrogen fuel cell, and even that is not good compared to batteries. I’d estimate the round trip efficiency of a hydrogen engine to be about 10-15%. So for the same energy that could be used to drive a battery EV 100km, this car from Toyota could drive 12km.

Additionally, hydrogen is not very energy dense per volume. A compressed hydrogen tank that replaces the boot/trunk of the car would have enough hydrogen for about 100km of range.

Please let me know if I’m wrong about any of these numbers. For Toyota’s sake, I really hope I’m wrong.

What projection is this?

As you wish

The main problem with the new leaf is the lack of battery cooling. After 3 (sometimes 2) rapid charges in a day the battery is at max temperature and the charge rate drastically reduces.

Unless you already have a CHAdeMO V2G charger, I recommend choosing an EV with battery cooling (almost all of them). You can probably find one with more features and longer range for a lower price than a new Leaf.

If you aren’t planning on using the car enough to worry about battery overheating, and you enjoy the test drive, it’s not actually a bad car. Just a little overpriced.

How would that look with Red/Blue 3D glasses?

It is a Leaf.

When the battery does eventually die, I’ll be looking at EVs enhanced for an upgrade. The car is too nice to throw away.

I also have a 62kWh Leaf E+ for highway driving. It’s ok, but the older Leafs (from before the refresh) are much more fun to drive, have more storage space, a tighter turning circle, and are much better value for money. I would recommend almost any EV instead of buying a new Leaf. (Maybe not the Hummer EV).

About 60km from 80%, so I’m guessing 75km (45mi) from 100%.

We rarely drive it more than 10km in a day, and there are chargers every 20km around here.

I have a 12 year old electric car with an old battery chemistry known for it’s fast degradation compared to current chemistries. It still has more than 50% of its original capacity, which is still more than we need.

I wouldn’t be surprised if I can keep driving it for another 5-10 years before selling the battery for grid storage.

Wow, this one took me too long.

It’s about time.