trash80
@trash80@lemmy.dbzer0.com
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
TIL there is a musician with the moniker of Trash80… en.wikipedia.org/wiki/Trash80
Sorry to disappoint, but I picked my username because of the TRS-80.
techland.time.com/2012/08/03/trs-80/
Please Don’t Call It Trash-80: A 35th Anniversary Salute to Radio Shack’s TRS-80
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
There’s no way around it unless the engine moves with the suspension
Yes, there is.
Take a conventional front engine, rear wheel drive drivetrain. Rotate the drive train 90 degrees about the rear axle, as if the automobile has its nose in the air, with the driveshaft oriented vertically.
You can steer the vehicle by rotating the entire axle around the axis of the driveshaft, though it isn’t perfect or space efficient, it would require no universal or CV joints. It would behave sort of like a vehicle with an articulated frame.
The axle could be fixed vertically with uni wheels at the ends of the halfshafts allowing the wheels to travel vertically independent from the axle.
Do you understand so far?
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
Now imagine there is a handle sticking out of the crankshaft that needs to rotate around the shaft with the hand crank as it gets turned. That is the motor.
What are you referring to as the crankshaft?
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
Driving the streering wheels exerts a force on the driving surface. That causes the steering wheels to have a tendency to toe in.
Looking from the top, you could run the motor clockwise on the right side and anti-clockwise on the left to cancel some of that, but the motor has very little leverage compared to the wheels.
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
What for? The axis of the driveshaft would always be parallel to the axis of the wheel and perpendicular to the axis of the motor.
Look at this hand drill:
The hand crank is the electric motor. If you rotate the drill about the hand crank axis, you don’t change any angles between the drivetrain components and don’t need CV or universal joints
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
How can you steer?
This is a Z-drive:
You can rotate the propeller about the vertical axis of the driveshaft running from B to C.
Now, imagine the propeller is your wheel.
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
Please elaborate.
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
This mechanism does not allow angular deflection between the motor and hub, as it’s shown, without a CV joint. Lateral displacement, yes, but not angular - as in it can’t steer.
The axis of the motor doesn’t need to be parallel to the axis of the wheel.
If the axis of the motor is vertical, you could use a ring and pinion gear to transfer the torque to the driveshaft running out to the wheel, and have the steering wheels pivot around the axis of the motor.
- Comment on Behold The Hyundai Uni Wheel. Transportation May Never Be The Same 1 year ago:
The axis of the motor doesn’t need to be parallel to the axis of the wheel.
If the axis of the motor is vertical, you could use a ring and pinion gear to transfer the torque to the driveshaft running out to the wheel, and have the steering wheels pivot around the axis of the motor.
- Comment on Pentagon Scientists Discuss Cybernetic 'Super Soldiers' That Feel Nothing While Killing In Dystopian Presentation 1 year ago:
Only the highest quality coverage from VICE.
- Comment on Could electronic mail undermine conventional post? – archive, 1 December 1983 1 year ago:
David Allen is the editor of the BBC Computer Literacy Project. He was using a Tandy TRS Model 100 portable computer with a Sendata Series 700 acoustic computer.
Heh.
- Comment on U.S. stops helping Big Tech spot foreign meddling amid GOP legal threats 1 year ago:
Ben Nimmo, chief of global threat intelligence for Meta, said government officials stopped communicating foreign election interference threats to the company in July.
That month, a federal judge limited the Biden administration’s communications with tech platforms in response to a lawsuit alleging such coordination ran afoul of the First Amendment by encouraging companies to remove falsehoods about covid-19 and the 2020 election. The decision included a specific exemption to allow the government to continue to communicate with the companies about national security threats, specifically foreign interference in elections. The case, Missouri v. Biden, is now before the U.S. Supreme Court, which has paused lower court restrictions while it reviews the matter. … The federal judge’s July 4 ruling prohibited key agencies — including the State Department, the FBI and DHS — from urging companies to remove “protected free speech” from the platforms. However, Trump-appointed Judge Terry A. Doughty appeared to acknowledge concerns the decision could dismantle election integrity initiatives, specifying the restrictions did not apply to warning companies of national security threats or foreign attempts to influence elections. The 5th Circuit Court of Appeals ruling removed some of the restrictions, including communication with the State Department.
I can appreciate the administration is “treading cautiously,” but the rulings specify that the restrictions don’t apply to foreign attempts to influence elections.
- Comment on A Civil Rights Firestorm Erupts Around a Looming Surveillance Power Grab: Dozens of advocacy groups are pressuring the US Congress to abandon plans to ram through the renewal of a controversial sur... 1 year ago:
Thanks for the clarification. Title is word salad.
- Comment on The smart home tech inside your home is less secure than you think, new Northeastern research finds. 1 year ago:
I doubt that.
- Comment on 5000-Year-Old Tablets Can Now Be Decoded by Artificial Intelligence, New Research Reveals 1 year ago:
recipes
- Comment on I feel like I need a separate body towel (big towel), and 3 other small towels for hair, face, and hands. 4 towels in total. Is that normal? 1 year ago:
Is that normal?
No.
- Comment on Vehicle 'Kill Switch' Mandate Is a Gross (and Dangerous) Violation of Privacy 1 year ago:
ok
- Comment on Ethernet is Still Going Strong After 50 Years 1 year ago:
Well, if it ain’t broke…
- Comment on Vehicle 'Kill Switch' Mandate Is a Gross (and Dangerous) Violation of Privacy 1 year ago:
Is that important?
- Comment on Vehicle 'Kill Switch' Mandate Is a Gross (and Dangerous) Violation of Privacy 1 year ago:
They only require the system to passively monitor the driver, e.g. doesn’t require the driver to blow in a breathalyzer.
- Comment on Vehicle 'Kill Switch' Mandate Is a Gross (and Dangerous) Violation of Privacy 1 year ago:
Instead, NHTSA will say that intentionally disabling a vehicle while it’s potentially driving on a busy highway will “impact safety in a negative manner”, and they’ll be completely right.
I wouldn’t be so sure about that. Vehicles equipped with OnStar already have anti-theft features such as “Remote Ignition Block” and “Stolen Vehicle Slowdown.”
Not long ago, GM launched “Stolen Vehicle Slowdown” on certain OnStar-equipped models, allowing the OnStar operator to remotely reduce engine power in a stolen car at the request of police. Now, GM is taking it a bit further with “Remote Ignition Block,” which prevents a stolen car from being restarted once it’s been turned off.
As with Stolen Vehicle Slwodown, (sic) Remote Ignition Block can only activated by OnStar after the vehicle’s owner has reported the theft to OnStar and law enforcement has confirmed the legitimacy of the case. GM plans to make the technology available on select 2009 and 2010 models immediately and more in the future.
- Comment on Is there a name for downplaying your suffering because other people have bigger problems? 1 year ago:
Emotional self-invalidation
- Comment on How to pick a stylus to play a 78-rpm record 1 year ago:
You should check this out:
The Great 78 Project is a community project for the preservation, research and discovery of 78rpm records. From about 1898 to the 1950s, an estimated 3 million sides (~3 minute recordings) have been made on 78rpm discs. While the commercially viable recordings will have been restored or remastered onto LP’s or CD, there is still research value in the artifacts and usage evidence in the often rare 78rpm discs and recordings. Already, over 20 collections have been selected by the Internet Archive for physical and digital preservation and access. Started by many volunteer collectors, these new collections have been selected, digitized and preserved by the Internet Archive, George Blood LP, and the Archive of Contemporary Music.
- Comment on Scientists Have Simulated What It Might Be Like to Plunge Into Uranus 1 year ago:
Using a high-temperature plasma tunnel, scientists have discovered what it might be like to plumb the depths of Uranus.
Sure, we know it would be smelly; but there are other considerations that need to be taken into account when designing a probe that can withstand the rigors therein.
- Comment on Kenya suspends Sam Altman’s eyeball-scanning crypto project (Aug 2023) 1 year ago:
I forgot he was the eyeball guy.
- Comment on Speediest little fella. 1 year ago:
I find so much of physics to be very intuitive and then you have light.
- Comment on UnitedHealthcare accused of using AI that denies critical medical care coverage | (Allegedly) putting profit before patients? What a shock. 1 year ago:
new buzzword for the media to abuse
- Comment on Speediest little fella. 1 year ago:
Now I’m not sure how reflective telescopes work.
- Comment on Can't catch me coppers!! 1 year ago:
ah, I should have known
- Comment on UnitedHealthcare accused of using AI that denies critical medical care coverage | (Allegedly) putting profit before patients? What a shock. 1 year ago:
Is there any criteria for what is considered to be A.I.?
