Comment First Use of Argon Hall-Effect Thrusters (Score 1) 89
One of the more significant features of these spacecraft is their use of Argon Hall-effect Thrusters. Most Hall-effect thrusters use Xenon as a propellent. SpaceX in its V1 sats used Krypton instead. That reduced propellant costs by roughly a factor of 10. Argon now reduces the cost by two more orders of magnitude. Argon is approximately 1000 times cheaper than Xenon.
This could be a breakthrough that is as significant to the build and operational costs of satellites as reusability of the launch vehicle is to the cost of getting them into orbit.
Comment Re:Air interface (Score 1) 96
No dimensions were given but Elon estimated 25 square meters for the antenna.
Comment Re:Telephone cables - 110kV (Score 1) 290
As airport76 has said and for some reason is voted down to one point while this post is strangely voted to five points.
110 KV and other high voltage transmission cables are nearly always made of aluminum. There are no copper savings to be had on HV transmission cables.
Comment Re:For the sake of.. Everyone (Score 1) 61
And before I get reamed, I did completely miss the last line of the summary somehow. Commence fire.
I missed it too, and would have continued oblivious, if you hadn't broken it out for we who skim articles. Thank you.
For others who like to read comments on comments but not the original material:
... it's the car's twin fans hidden within the bespoke chassis that really helped it achieve that record-setting time. Much like Gordon Murray's T.50 supercar, the Speirling's fans essentially suck the car to the ground and provide it with other-worldly downforce.
Comment These accounts weren't Free (Score 1) 135
Small businesses paid by feeding Google information about their businesses, customers and vendors, whether the owners were aware or not. They also provided test subjects for Google's experiments with new interfaces, products and services.
Google is not only seeking ways to bolster their bottom line, but to have an alternative to monetizing their "customers" if regulations and technology limit the value they currently receive from snooping on small businesses conversations and transactions.
Comment So... (Score 1) 30
"It's an anti-terminator... terminator?"
Comment Just a matter of priorities - UAW comes first (Score -1, Flamebait) 154
Need to be able to fund the generous $4500 rebate for UAW built electric vehicles so maybe they can compete with Tesla.
Comment Re:I can buy a Tesla today for $40-$80K (Score 1) 163
I get your point, but literally speaking, probably not. Unless you get lucky and find one used or in local inventory because a delivery fell through. They are pretty much sold out until next year on most popular models and availability is several months out on even the remaining less popular and expensive trims.
Comment Re: Good for Tesla (Score 1) 163
Not exactly full of lithium, and I know you weren't being literal but, while the batteries are very valuable as you said, it's really not so much about lithium. First their greatest value is for second use. 70% capacity is not great for cars, but does fine for off peak power storage. Second for their materials, but lithium is probably the least valuable component right up there with plastic. It's not an expensive component plus in spite of the name Lithium Battery, it is a minority component by weight and cost. There are several recycling companies, Redwood Materials being one of the more notable, building big facilities to turn used batteries into metaphoric gold.
Comment Wrong Conclusion - Wrong Headline (Score 1) 215
The majority of people surveyed (65%) have no issue with sharing the road with autonomous cars. Almost 1/3 (30%) are actually exited about it.
Comment Re: Elon and CJ have different timelines (Score 1) 110
True. That is why Tesla is not selling FSD as feature complete and bends over backward to explain to purchasers and operators that the capability and the regulations do not allow that yet. They are buying future capability at the current price.
Comment Re:Elon and CJ have different timelines (Score 1) 110
True. Sorry, I thought your comment about being able to afford a $20 camera meant that you didn't know they did on some vehicles. I imagine they will also put them on the new model S and X vehicles too, but whether they will use them for that purpose is to be seen.
Comment Re:Elon and CJ have different timelines (Score 1) 110
Model 3's and Model Y's do have inside cameras. But these purposely left off for privacy purposes and reserved for future services.
Comment Re:That sounds about right. (Score 1) 110
You can and probably should believe both. They are not mutually exclusive. Elon is talking about capability from a technical standpoint. The engineer in this context is talking about what the lawyers, insurance companies, and regulators are willing to accept. Any level 4 and level 5 capable system can and should be artificially restricted to level 2 until it is legal to do otherwise.