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marcusl's latest activity
M
marcusl
reacted to
Baluncore's post
in the thread
Engineering
Impact of weight distribution on the acceleration of cars
with
Like
.
The mass distribution will be important when considered in connection with front or rear wheel drive. What causes the vehicle to...
Yesterday, 9:25 AM
M
marcusl
reacted to
dlgoff's post
in the thread
Why Do Fathers Experience Premature Graying?
with
Like
.
Here's an update on my daughter's flying from an email I just receiver: No gray hairs. Just a proud dad.
Thursday, 1:50 PM
M
marcusl
replied to the thread
Why can't satellites be equipped with radar systems so that they can detect (and then avoid) impending collisions?
.
I'm guessing you've never designed a satellite or a radar, either. Rive has the correct answer in post #5 above.
Tuesday, 3:15 PM
M
marcusl
reacted to
Rive's post
in the thread
Why can't satellites be equipped with radar systems so that they can detect (and then avoid) impending collisions?
with
Like
.
You can check the specs of radars used in fighter aircrafts for hints. They require power in the range of tens of kilowatts (far more...
Tuesday, 3:14 PM
M
marcusl
reacted to
DennisN's post
in the thread
Random Photos
with
Like
.
By the way, I just checked the fieldfare page on Swedish Wikipedia and saw these two nice photos: Turdus pilaris in snow, Väsby, by...
May 13, 2024
M
marcusl
replied to the thread
I
Plane wave decomposition of the fields of a dipole antenna
.
Agreed, if you are after a Hertzian dipole then the case is settled.
May 13, 2024
M
marcusl
replied to the thread
I
Plane wave decomposition of the fields of a dipole antenna
.
I'm not convinced. First, the author states on p. 8 "To this author, there is very limited physical reality to the inhomogeneous plane...
May 12, 2024
M
marcusl
reacted to
Vanadium 50's post
in the thread
Admissions
Do I have a good shot at CalTech/MIT's graduate program for physics?
with
Like
.
I see you aren't going to take my advice to focus on where you are now. <sigh> This is something you absolutely should not be worrying...
May 11, 2024
M
marcusl
replied to the thread
A
NMR flip angle - angle of nutation
.
Precession of the nuclear spin is governed by the Bloch equations, named after Felix Bloch who co-discovered NMR in 1947 and later...
May 10, 2024
M
marcusl
replied to the thread
I
Plane wave decomposition of the fields of a dipole antenna
.
Propagating waves in the far field have azimuthal (circular) symmetry about the dipole and may be described by spherical waves. Far from...
May 10, 2024
M
marcusl
replied to the thread
Is the criteria for the present perfect tense in Warriner's textbook inadequate?
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I should have specified, since PF emphasizes providing references. The Cambridge Grammar of the English Language, 2002, contains an...
May 5, 2024
M
marcusl
replied to the thread
Is the criteria for the present perfect tense in Warriner's textbook inadequate?
.
The reason it doesn’t match is that it’s not the present perfect tense. “Should “ is a modal verb expressing expectation or obligation...
May 5, 2024
M
marcusl
replied to the thread
What would you memorize if you could?
.
Poetry. I’m always impressed by (and maybe a bit jealous of) people who can recite poems.
May 1, 2024
M
marcusl
replied to the thread
Audio/Video
Cancel noise from neighbor with loud bass
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Emphasis on “heavy”. You need a wall (concrete or cinder blocks, e.g.) that will not vibrate from the bass noise that you are trying to...
Apr 26, 2024
M
marcusl
replied to the thread
I
Directional magnetic field
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Magnetic field lines are always loops, so you cannot emit a field in just one direction.
Apr 20, 2024
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