What is the newest installment of 'Random Thoughts' on Physics Forums?

[WWGD]

Why not. Andrea is a men's name.

How about Rebecco, or Davida? Melindo?

 

[WWGD]

Why not. Andrea is a men's name.

Isn't it Andreas? A man's name is the plural of women's name.

 

[fresh_42]

Isn't it Andreas? A man's name is the plural of women's name.

Andrea is an Italian male name. And not few of Italian men have Maria as second name.

 

[WWGD]

Andrea is an Italian male name.

Isn't Andreas a male German nam

 

[fresh_42]

Isn't Andreas a male German nam

Yes, Andrea female, Andreas male. But not in Italy. I don't know whether Anfrea is for both in Italy.
Here is a (famous - at least here) example: https://de.wikipedia.org/wiki/Andrea_Bocelli

 

[WWGD]

Yes, Andrea female, Andreas male. But not in Italy. I don't know whether Anfrea is for both in Italy.
Here is a (famous - at least here) example: https://de.wikipedia.org/wiki/Andrea_Bocelli

What if first name is Ann and last name is Drea? Anyway, I think we wore out the name topic.

 

[fresh_42]

What if first name is Ann and last name is Drea? Anyway, I think we wore out the name topic.

The last name of Ann is Arbor.

 

[WWGD]

The last name of Ann is Arbor.

I thought it was 'Aconda' or 'Ticipation'.

 

[fresh_42]

I thought it was 'Aconda' or 'Ticipation'.

What shall I say. My weird relatives live in MI, not FL. And I have no kind of patience.

 

[WWGD]

Pretty elaborate instructions to cook my microwave food. Pinch holes, cook for 3 minutes, then remove remainder of cover and stir food, etc. I just put it in for 4-5 minutes and nuke it. Maybe Germans, Swiss or Japanese have the discipline to follow to the letter.

 

[fresh_42]

Maybe Germans, Swiss or Japanese have the discipline to follow to the letter.

Don't quote me! I managed to burn water.

 

[strangerep]

Why do you want to refresh your python?

Ah, well,... sad things happen to one's python as one gets older...

 

[nuuskur]

Don't quote me! I managed to burn water.

oops

 

[skyshrimp]

I never could get dumplings right. They're supposed to take 20 minutes to cook in a soup. I tried microwaving them for 3.5 minutes today. They were on a plate with a little water and a plate cover to make steam and they turned out great. I'll just pop them into a soup or stew pre-cooked now. I had them with pumpkin and coconut soup today.

Very nice.

 

[OmCheeto]

Are you a stand-up comic?

I do most of my comedy sitting down, so 'no'.

Maybe it will be The Apollo?

I think the Apophis Theater would be more appropriate, given the date.

"99942_Apophis [...] hit Earth on April 13, 2029"​

"I will die on Monday, February 19, 2029"​

In the meanwhile, I'm quite enjoying making graphs.

This ones creation was inspired by someone on twitter who complained that the Netherlands was a complete and utter failure, because there weren't enough bugs*.

I didn't engage the person, but would have liked to have asked them how many bugs they had in their house.

-----------
*There were other things, but I don't want to hog the random stage.

 

[WWGD]

Interesting, unusual problem when tutoring. But seems to tough for intro class: find a quadratic equation without real roots without solving it. One possibility is x(x+1)=-5 ( or any negative number > 1), giving us x^2+x+5. Idea is that since -5 is negative, it must be the product of positive and negative and each larger than 1 in absolute value ( in order to equal -5), which is impossible. Scratching my head on how this belongs in an intro math class.

 

[fresh_42]

Sure it does. Take the normal parabola and shift it one up.

 

[nuuskur]

Occurs if and only if discriminant is negative. Totally high school friendly :D

 

[WWGD]

Sure it does. Take the normal parabola and shift it one up.

That is not allowed in here because too obvious. $x^2+c;c>0$ clearly has no real root. Must be a "full" quadratic $ax^2+bx+c$.

 

[nuuskur]

$1x^2 + 0x + c$, then?

 

[WWGD]

I approached the hare Krishna, only one that did. Just asked them where I can get a good full hair cut.

 

[WWGD]

$1x^2 + 0x + c$, then?

No, that was excluded for same reason. Too obvious.

 

[nuuskur]

Take a trivial example that meets the criteria and shift it. E.g $x^2 +1 \to (x-c)^2 +1$ tadaa!

 

[fresh_42]

Choose a random triple $(a,b,c)$, roll the dice $100$ times and at least one triple will do.

 

[WWGD]

But this has to be done at an intro level. I know it is a simple problem overall but these are entry level students. and they ask for actual solution not probabilistic argument.

 

[fresh_42]

The good old cone sections work for high schoolers. The rest are just coordinate systems or stretches, also school stuff.

 

[Klystron]

But this has to be done at an intro level. I know it is a simple problem overall but these are entry level students. and they ask for actual solution not probabilistic argument.

The analytical geometry approach mentioned by @fresh_42 meets your criteria. Write the equation, a two column table and the usual cartesian graph on the board (or screen). Col_1 contains trial values, col_2 the computed results (or just rough estimates). Plot the table on the graph as a parabola. Keep it simple.

This approach appeals to geometry types who recognize the shape from the ploynomial, list lovers who see numerical analysis and general math students who see an equation plotted. For AP students modify a few parameters a la @nuuskur and watch the parabola change.

Not sure where the Krishna's fit.

[Edit: added a smiley face to indicate I was humorously quoting the Krishna bit as if they were going to teach @WWGD 's math class.]

 

[WWGD]

If people were that good in math, the drink "Half and Half" would instead be called "One".

 

[WWGD]

The analytical geometry approach mentioned by @fresh_42 meets your criteria. Write the equation, a two column table and the usual cartesian graph on the board (or screen). Col_1 contains trial values, col_2 the computed results (or just rough estimates). Plot the table on the graph as a parabola. Keep it simple.

This approach appeals to geometry types who recognize the shape from the ploynomial, list lovers who see numerical analysis and general math students who see an equation plotted. For AP students modify a few parameters a la @nuuskur and watch the parabola change. Not sure where the Krishna's fit.

Krishnas? Did I sleep through something major again?

 

[fresh_42]

Krishnas? Did I sleep through something major again?

Not sure, but can we change the subject? My dishes were lately so far from Krishna, I mean further away than any American dish.

 

[WWGD]

Not sure, but can we change the subject? My dishes were lately so far from Krishna, I mean further away than any American dish.

"So far from Krishna"? I am not hip to your Deutsche slang.

 

[fresh_42]

Anti-vegetarian. Very anti.

 

[WWGD]

Anti-vegetarian. Very anti.

Your dad's sister is called vegetarian?

 

[fresh_42]

Your dad's sister is called vegetarian?

Guess she prefers Lizzy.

 

[Klystron]

For what it is worth...

I approached the hare Krishna, only one that did. Just asked them where I can get a good full hair cut.

Krishnas? Did I sleep through something major again?

For years I thought people were saying Hairy Krishnas. But most shave their heads!? Time to sleep...

 

[WWGD]

For what it is worth...For years I thought people were saying Hairy Krishnas. But most shave their heads!? Time to sleep...

I didn't make the connection between the two refs.

 

[nuuskur]

Courtesy of axiomatic set theory:
If it swims and quacks like a duck then it is a set.

 

[fresh_42]

Courtesy of axiomatic set theory:
If it swims and quacks like a duck then it is a set.

Do you allow me to copy this and make a science joke out of it? I have an idea for an illustration.

 

[nuuskur]

Do you allow me to copy this and make a science joke out of it? I have an idea for an illustration.

Go ahead! I doubt it's an original idea, I mean that's what set theory says: if it exists, then it's a set.

I found the English version of the idea I was using. We have a similar saying.

 

[collinsmark]

Courtesy of axiomatic set theory:
If it swims and quacks like a duck then it is a set.

That might fit on a nerdy T-shirt. (I pretty much exclusively wear nerdy T-shirts these days.) Hmm.

 

[skyshrimp]

That feel...

When you make a thread about something not serious in 'off topic' and it gets moved to a serious subforum, only to be ridiculed and locked, when it was made in jest for the lols (hence being posted in off topic).

 

[newbiegirl]

I wonder what would make someone park in the opposite direction of traffic, granted it was a residential street but the car would still be on the same side as their house if parked properly

 

[WWGD]

Bought some roller blades, rat poison and a chicken sandwich. Interesting combinations you can find in large chain stores.

 

[fresh_42]

Bought some roller blades, rat poison and a chicken sandwich. Interesting combinations you can find in large chain stores.

Rat poison is too easily detectable.

 

[WWGD]

Rat poison is too easily detectable.

Yes, no wonder cashier only handed me two things. I suspect they merged it with the chicka...(argh).

 

[strangerep]

Yes, no wonder cashier only handed me two things. I suspect they merged [the rat poison] with the chicka...(argh).

Heh, don't worry too much. If the rat poison is warfarin-based it's "only" going to make your blood less likely to clot. So if you're not a footballer, nor an MMA thug, etc, you might not even notice it.

 

[Bystander]

This "instant" there are six members listed as present but the forum stats show eleven as "on board;" there are that many members afraid to show their faces?

 

[Klystron]

This "instant" there are six members listed as present but the forum stats show eleven as "on board;" there are that many members afraid to show their faces?

I doubt 'afraid' is the operative term. Reluctant?
Or they set a profile/privacy switch without deep thought.
Or₂ visitors are included? {the tiny icon is counting 1,2,3...}

 

[Bystander]

profile/privacy switch

"Prolly," nine of eighteen, at one point last night; my eyes get confused counting more than three rows of listed identities, so I'll never know if its mods hiding/lurking in ambush, therefore an ~ constant, or a fixed proportion of the PF population.

 

[Bystander]

nine of eighteen,

Twenty-six of thirty-eight.

Edit: Twenty-seven of forty-two.