My education ended in 1985, before all this string theory and newer ideas.
But I never totally understood quantum mechanics, which generally seems to be saying that there is no real mass, only the effects of vibrational energy.
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My education ended in 1985, before all this string theory and newer ideas.
But I never totally understood quantum mechanics, which generally seems to be saying that there is no real mass, only the effects of vibrational energy.
I don't think so.
Formal education is a valuable gift, all too rare in our culture.
But stepping out of the schoolhouse into the sunshine does not terminate ones education.
Instead it merely puts the student in charge of his own life syllabus.
I'm not sure string theory is substantially more than a bar room mind boink.
When Earth's leading chemists devise our latest innovations, I suspect they deal with electrons, protons, and neutrons, not strings.
Leave string to the Mudweisers. Anyone tries to pull a string on you, tell 'em to go fly a gemutlich kite.
Some may think Einstein proved Newton wrong.
I don't think so.
Long after Einstein assumed room temperature I attended college, and was taught Newton, not Einstein.
My layman's physics mantra is hardly poetic. But you're welcome to it.
Many laymen may know they don't know the laws of physics, but that there is a set of laws of physics, the scientists know them, and apply them when doing science.
That's wrong.
There isn't "a set of laws of physics".
There are three separate sets that we know of.
Newton's understanding, including his 3 laws of motion are most familiar, they're corroborated by our daily experience.
Quantum physics is different. Electrons, protons, and neutrons are not billiard balls. Quantum, a different set of laws.
Relativity, different still.
“Gravity slows down time … speed slows down time ...” Bob Berman
PS
Personal suspicion.
I don't think the speed of light (SOL) and or photons imposes a maximum speed on the universe.
Exactly the opposite, I suspect the universe imposes a maximum speed, and photons (& everything else) are subject to that cosmic speed limit.
Photons are not the enforcer. They're the victims.
Therefore to understand SOL, probably best to study 4 dimensional space / time.
Interesting to consider if different manifestations, such as mass, wave, gravity, etc., come from which aspects are manifesting in our plane of existence, and which have shifted into other dimensions?
Humanity stumbles about, seemingly haphazardly. If a bloke ten times smarter than Einstein was born just a few millennia earlier,
and he told the truth, they'd have thought him a madman. Bear in mind, at that time, it was the sun that orbited the Earth. You could tell just by looking.
None the less guys like Russian chemist Dmitri Mendeleev helped forge order out of chaos. Mendeleev figured out the periodicity of the elements (despite those upstart Lanthanides).
"there is nothing covered, that shall not be revealed; neither hid, that shall not be known." St. Luke 12:2
"in time, all will be reviled." Wolf 2uk
The following lists current understanding of quarks.
We're getting there.
Won't arrive anytime soon.
What's the rush?
and he told the truth, they'd have thought him a madman. Bear in mind, at that time, it was the sun that orbited the Earth. You could tell just by looking.
None the less guys like Russian chemist Dmitri Mendeleev helped forge order out of chaos. Mendeleev figured out the periodicity of the elements (despite those upstart Lanthanides).
"there is nothing covered, that shall not be revealed; neither hid, that shall not be known." St. Luke 12:2
"in time, all will be reviled." Wolf 2uk
The following lists current understanding of quarks.
We're getting there.
Won't arrive anytime soon.
What's the rush?
Humanity stumbles about, seemingly haphazardly. If a bloke ten times smarter than Einstein was born just a few millennia earlier,
and he told the truth, they'd have thought him a madman. Bear in mind, at that time, it was the sun that orbited the Earth. You could tell just by looking.
None the less guys like Russian chemist Dmitri Mendeleev helped forge order out of chaos. Mendeleev figured out the periodicity of the elements (despite those upstart Lanthanides).
"there is nothing covered, that shall not be revealed; neither hid, that shall not be known." St. Luke 12:2
"in time, all will be reviled." Wolf 2uk
The following lists current understanding of quarks.
We're getting there.
Won't arrive anytime soon.
What's the rush?
I did know about quarks at one time, but forgot and had to look them up again.
{...
A quark (/ˈkwɔːrk, ˈkwɑːrk/ is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.<a href="https://en.wikipedia.org/wiki/Quark#cite_note-1"><span>[</span>1<span>]</span></a> All commonly observable matter is composed of up quarks, down quarks and electrons. Owing to a phenomenon known as color confinement, quarks are never found in isolation; they can be found only within hadrons, which include baryons (such as protons and neutrons) and mesons, or in quark–gluon plasmas.
For this reason, much of what is known about quarks has been drawn from observations of hadrons.
Quarks have various intrinsic properties, including electric charge, mass, color charge, and spin. They are the only elementary particles in the Standard Model of particle physics to experience all four fundamental interactions, also known as fundamental forces (electromagnetism, gravitation, strong interaction, and weak interaction), as well as the only known particles whose electric charges are not integer multiples of the elementary charge.
There are six types, known as flavors, of quarks: up, down, charm, strange, top, and bottom.
Up and down quarks have the lowest masses of all quarks.
...}
Hmmm
I thought electrons imparted electric charge. BUT !
I thought quarks composed electrons.
Glad I'm old AND retired.
It's enough to make a hooker blush !
slepton
subatomic particle
In subatomic particle: Testing supersymmetry…/2 have supersymmetric partners, dubbed sleptons and squarks, with integer spin; and the photon, W, Z, gluon, and graviton have counterparts with half-integer spins, known as the photino, wino, zino, gluino, and gravitino, respectively. If they indeed exist, all these new supersymmetric particles must be heavy to have escaped
Slepton | subatomic particle | Britannica
Other articles where slepton is discussed: subatomic particle: Testing supersymmetry: … 2 have supersymmetric partners, dubbed sleptons and squarks, with integer spin; and the photon, W, Z, gluon, and graviton have counterparts with half-integer spins, known as the photino, wino, zino, gluino...
www.britannica.com
Bottom line, not sure we have to know that to understand other basic characteristics such as electrical conductivity, translucency, etc
Or perhaps the more familiar corollary:
The more we know, the more we know we don't know.
I think I'll go "Spring forward" in a little while.
Shiftless2
Well-known member
It's called progress
The problem is called "progress",
the opposite of the problem is the solution,
the opposite of the prefix pro- is the prefix con-
so if the problem is "progress" the solution is congress.
- right - ?
We ARE D O O O M E D !
Fine.
That's an old joke.
What's not so funny:
"...a long habit of not thinking a thing wrong, gives it a superficial appearance of being right, .... Time makes more converts than reason." U.S. Founder Thomas Paine / Common Sense
The K - 12 public education standard has persisted for living memory, and was adequate when established generations ago. BUT !
It's a new millennium, a different labor market, a different world. Ending a citizen's education at high school graduation may not prepare the grad. for the complexities of the 21st century job market / workplace.
There's more at issue here than scholastic backslide.
It's a monumental blunder to static-model this exceptionally dynamic social / technological / employment environment.
And it's not realistic to continue to expect K - 12 to remain adequate after it has become obsolete.
That does not mean congress is the answer, though congress does have the power to replace K - 12 with K - 14.
Don't hold your breath awaiting that transformation during the Trump administration.
sorites paradox
Shiftless2
Well-known member
When I went into first year my tuition for the full year was $540. The next year it was increased to $640 and it stayed there till I graduated. No idea what grad school tuition was because the university funded it so I never saw a bill.
Far outpacing $inflation. The result:
shifting the bias influencing which candidates receive higher education from merit, to wealth.
Not clear to me why it would be necessary to guess.
Some reports assert while the G.I. Bill costs $millions to administer, paying / subsidizing college tuition is a $net $gain for the nation,
as these citizens that obtain college degree earn more, and pay more $tax on their increased salaries.
I'm not opposed to rewarding our honorably discharged military vets.
But if expanding higher ed funding would be a net gain for the nation, how can we justify not doing so?!
April 21
$689.50
SanDisk 4TB Extreme Portable SSD - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25
$69.90
4TB Ultra Speed External SSD Back up yesterday’s memories and today’s documents, even on the go. Our Ultra Speed Portable SSD makes it possible thanks to the plug-and-play simplicity of USB 3.1 and drag-and-drop functionality.
?
For $150 there are 4TB twirling platter hard drives, external USB.
Same vendor SSD costs $4x more. BUT !
For a $tenth of that wrapango offers 4TB in SSD.
? Δ 10:1
I assume China is involved. Even so, not clear to me what's going on here.
I use WD 4TB Passports as DVR storage. MS Win10 chokes on higher capacity drives.
I'm not wild about risking data loss, but am tempted to try 4TB @ $70
How bad could it be?
note:
fragmentation is a substantial problem with this DVR, as the DVR software generates nonsense / phantom files which clutter playlists.
The clutter can be deleted, a daily chore. BUT ! doing so results in fragmentation of hour long video files, resulting in playback disruption.
Some expert opinion advocates against defragmenting SSD. hmmm
$689.50
SanDisk 4TB Extreme Portable SSD - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25
$69.90
4TB Ultra Speed External SSD Back up yesterday’s memories and today’s documents, even on the go. Our Ultra Speed Portable SSD makes it possible thanks to the plug-and-play simplicity of USB 3.1 and drag-and-drop functionality.?
For $150 there are 4TB twirling platter hard drives, external USB.
Same vendor SSD costs $4x more. BUT !
For a $tenth of that wrapango offers 4TB in SSD.
? Δ 10:1
I assume China is involved. Even so, not clear to me what's going on here.
I use WD 4TB Passports as DVR storage. MS Win10 chokes on higher capacity drives.
I'm not wild about risking data loss, but am tempted to try 4TB @ $70
How bad could it be?
note:
fragmentation is a substantial problem with this DVR, as the DVR software generates nonsense / phantom files which clutter playlists.
The clutter can be deleted, a daily chore. BUT ! doing so results in fragmentation of hour long video files, resulting in playback disruption.
Some expert opinion advocates against defragmenting SSD. hmmm
April 21
$689.50
SanDisk 4TB Extreme Portable SSD - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25
$69.90
?
For $150 there are 4TB twirling platter hard drives, external USB.
Same vendor SSD costs $4x more. BUT !
For a $tenth of that wrapango offers 4TB in SSD.
? Δ 10:1
I assume China is involved. Even so, not clear to me what's going on here.
I use WD 4TB Passports as DVR storage. MS Win10 chokes on higher capacity drives.
I'm not wild about risking data loss, but am tempted to try 4TB @ $70
How bad could it be?
note:
fragmentation is a substantial problem with this DVR, as the DVR software generates nonsense / phantom files which clutter playlists.
The clutter can be deleted, a daily chore. BUT ! doing so results in fragmentation of hour long video files, resulting in playback disruption.
Some expert opinion advocates against defragmenting SSD. hmmm
My experience is too obsolete to be of use.
Here is the AI take:
{...
Defragmenting an SSD is generally unnecessary and can reduce its lifespan, as SSDs access data quickly regardless of fragmentation.
Why
Unlike traditional hard drives (HDDs), which store data on spinning platters and benefit from contiguous file storage, SSDs use flash memory with no moving parts, allowing random access to any data block at similar speeds. Fragmentation does not significantly slow down read or write operations on an SSD, and in some cases, spreading data across multiple memory channels can even improve performance. Attempting to defragment an SSD forces unnecessary write cycles, which can wear out flash memory cells faster and shorten the drive’s lifespan.How-To Geek+2
Proper
Instead of defragmentation, SSDs benefit from TRIM commands, which inform the drive which blocks of data are no longer in use so they can be efficiently erased and reused. Modern operating systems like Windows automatically handle SSD optimization, including TRIM and occasional defragmentation only when necessary, such as when volume snapshots are enabled. This ensures the SSD maintains performance without excessive wear.Microsoft+1
When
Windows may perform a monthly defragmentation on SSDs under specific conditions to address metadata limitations or slow copy-on-write operations on fragmented volumes. This process is carefully managed to avoid unnecessary wear and is different from traditional HDD defragmentation.TheWindowsClub
Key
- Do not manually defragment an SSD; it provides little to no performance benefit and can reduce lifespan.
- Ensure TRIM is enabled and let the operating system handle optimization automatically.
https://www.bing.com/ck/a?!&&p=a3b5...MS1jOTZlLTQ2ZGItYjg0My04YzZiMzRiZDI3YTQ&ntb=1 - Windows’ built-in optimization is sufficient for maintaining SSD performance, including occasional intelligent defragmentation when required.
https://www.bing.com/ck/a?!&&p=1b33...lZnJhZ21lbnRhdGlvbi1vZi1zc2Qtd2luZG93cw&ntb=1
In summary, SSDs require different maintenance than HDDs. Focus on TRIM and system-managed optimization rather than traditional defragmentation to preserve speed and longevity.
I've never heard of it. Thanks for the no-heads up. (get it, no "heads" on an SSD! OH! I should take it on the road !)
Anyways, I just ordered four of these gizmos, from 4TB to 16TB.
Win10 chokes on 4TB once it reaches 80%.
When I command the OS to display the drive contents, I get a green progress bar that sometimes takes many minutes to complete, and list the contents.
I've wondered whether there's a Linux flavor that would be quicker.
Anyway, I'll check out these SSD's.
Defrag on the 4TB twirling platter drives can take over a day (38 hrs?). So instead I get a new virgin drive, format it, and then copy the vids from the fragmented drive to the virgin. iirc it doesn't save much time, but may be easier on the drive.
I ASSUME that if the target drive has zero fragmentation, which it should with zero data, the copy will be automatically defragmented.
Not sure how I'll use these SSD, but I'm contemplating using one as the DVR daily storage drive. I'm assuming SSD can handle the bandwidth of four simultaneous 1080HD recordings. The WD 4TB USB Passport can / does.
note: I've been using WD 4TB USB drives as DVR storage for many years. I've bought dozens of them. I don't recall ever having a failure. I take care to not drop it / them out a 3rd story window, etc.
I checked both:
- Win10 "Search Programs and Files" and got zero.
- Same on the command line.
I found this procedure: https://kb.plugable.com/data-storage/trim-an-ssd-in-windows-10
I'll wait until the SSD arrive & are plugged in before I dig in.