Externet

Regards.

It is claimed as possible, people does it or so they say, applying a magic powder/compound this-or-that-and-that-too, on such moon phase 'after a rain' to a cut twig, roots develop and then is planted on soil.  Nice.

OK.  I want to do that to a 10cm diametre branch 6 metres long cut off from a very mature 15m tall productive healthy mulberry tree.  What is to consider for success ?  Or needs the expertise of only an experienced expert with green thumbs ?   Is it not science where you do one thing and the result comes as expected ?

Yes, I want a tree producing fruit in my backyard much sooner than waiting 5-10 years.   The secret, please ?

Greetings.

Half a dozen in my house, and other places I maintain with several more also of the not-vintage types.  Have replaced them, cleaned them, repaired capacitors, switches, wiring in them but never saw an obvious lubricating points above or below them nor seen owners manuals guidance to oil them.  Do they need some dismantling in order to lubricate or there is a clever access to the proper point; or simply is a chinese discard-and-buy-new as if few drops of oil and little effort is too much to ask ?

Asphyxia + hypothermia + boiling blood.

It is a mathematics question.  Am after figures to compare from integrating exposures at sun azimuths, elevations and incidence angles.  Or that is a wrong way to find out ?

My roof has 4.8KW generation capability, it is slanted for south exposure.  In summer, noticed generation does not start until ~9+am; and even the sun is bright 3 hours before sunset, there is no generation then either.  Guessing, a total of 3 hours by sunrise + 3 hours at sunset are not productive mostly because sun azimuths on tilted panels. Typical production is 20 to 30 KWh daily.

If deserves to relocate post to 'applied mathematics' or 'calculus' please move.

[Image taken from south, near noon]

Greetings.

This is not simple for me to put into words; please ask what I may be missing to expose properly.    For a northern hemisphere latitude chosen as 45⁰ as an average for America, Asia and Europe locations with solar panels.

If the solar panels are placed horizontal, as soon as the sun is above horizon, the panels are exposed to direct sun rays.  At a very low angle but every day of the year and for more than 12 hours in summer but at a 'lossy' incident angle.  There will be a 'bell' curve of exposure peaking at celestial noon, producing a photovoltaic generation of  X KWyear.

If the solar panels are tilted 45⁰ for optimal exposure, at sunrise above the horizon illuminates the back of the panels producing zero energy until the sun azimuth reaches east and until falls at west to again illuminate the back of the panels until sunset. Am I right in this ?  The noon peak is more productive, yields Y KWyear.  In winter, the sun hits the panels as soon as above horizon at a more efficient incident angle.

The consensus is to install them tilted but am curious about how much detrimental to generation (Y-X) is installing them horizontal.  Integration calculus should yield the result but am not capable of performing the operations.  Could you ?

In other words: how much better is a tilted installation ?

Horizontal --> poor angle,  more exposure hours in summer.

Tilted --> better angle, less exposure hours in summer.

Comes from two things... If the photovoltaic generation is for providing heating in winter or cooling in summer. If angling is conveniently justified or not for an existing roof risking windload.

This is easy for you...

Looking north, the stars rise above horizon on east and set below horizon on west.  I think. 

How to locate the north with the 'North star' if everything is moving ?  Or everything revolves counterclockwise (at northern hemisphere) in a circle around the 'North star' , appearing as the pivot to all other stars motion ?

Hi. 

Several days in salt water, the item shows zero corrosion.  A cheaper test than a spectrometer.  Now ready to put into operation under the sea. 😀

Thank you, sir.

What I have deduced in the last day is;

Being the location very tropical,

The higher cooling capability of the exterior unit overwhelms the inside unit forming ice in the fins, which blocks the air flow to the inside. The cold air not entering the inside; the thermostat is cranked to a lower temperature which makes the problem worse.  Small slits in the ice formation launch any condensation droplets with high velocity mist wetting the wall by the vent register instead of dripping into the condensate tray under the evaporator.  The pissed-off users crank the thermostat even lower worsening the behavior with a compressor that does not cycle.

Did not check reality, he is 4000 miles away.  As a larger matching proper 3 Ton indoor unit does not fit in the indoor niche; suggested to :

- increase the indoor fan speed as possible with the proper motor jumper setting;

-Set the thermostat to 24C and lower only if there is no ice formation,

-Look frequently at what is going on head-into the evaporator and flashlight on hand.

-Reduce cold losses by windows, doors, kitchen... 

Does it make sense; anything you would add ?

Yes, several different behavior examples shown on that link from the same whatever  'isolated web co'

 I would need a new brain transplant to write code again 50 years late.   Last brain transplant they gave me a refurbished.  Not recommended !

If I could write that, would not be to warn me about memory usage, would be to stop the intrusion. 😡  Yes, closing the browser fixes it for a while until 'piles up' again.

Thanks.

Digging into territory am not familiar with, the system monitor reported over 60% of CPU activity from two "isolated web container"  from this Firefox shiiiit.

How to excomunicate such from my compfuser, forever ?.  I did not ask for its intrusion, whatever that is, and do not understand what it does, do not want to understand, and just want it out of taking over my resources.

Am also after another browser to kick Firefox out, that can work on Ubuntu 20.04   Thanks for any of your proven suggestions.  I do have search engines too.

Found am not alone ! ---> https://connect.mozilla.org/t5/discussions/quot-firefoxcp-isolated-web-content-quot-is-slowly-consuming-all/td-p/1872

experts; please shoot this intruder dead !

Hi.

My brother is paranoid because just found that the central air conditioning equipment at his home installed 30 years ago has always had a 3 ton exterior unit and a 2 ton interior.

What should the behavior of such mismatch ?  Am not an expert in the field to answer without 'maybes' and 'sometimes'  Anyone around knows ?

Question 2:  What behavior should be expected if some technician fed refrigerant R410 in equipment that calls for R22 ?  Anyone knows ?

Good day.

A spring of stainless steel appearance is attracted to a magnet.  As there is diamagnetic and paramagnetic stainless steels, I would like to find out.   Half submerged in salt water for a day now; am supposed to see if corrodes.  What is a way to find what metal is it made of ?  The manufacturer did not want to reveal when asked. 😒

Regards.

My compfuser idling for about 10+ minutes untouched since the last site visited.  Fan speeds up.   Seen that at certain sites that demand? more processing resources, but how it happens while doing nothing ?  Switching to another site the fan returned to its low speed state.  Is there under-the-table activity pushed by some web sites, in the magnitude of raising processing ?

Can it be related to operative system or to cookies and alike ?

Thanks.

Discharge of black waters to sea is restricted to beyond 3 miles offshores for 'untreated' raw sewage if I remember well, but do not know limits for 'treated'

If treated means with dead/no living organisms in it, can be achieved fast and easy.  If 'treated' means also without certain chemicals, heavy metals, toxins, am unsure how that 'treatment' is done.

The seawater contaminating groundwater as mentioned; cannot be worse than septic sewers contaminating groundwater wells in the same neighborhood.  I believe maaaany properties have both in the same or adjacent land tracts.  How is that prevented ?

Curiosity... Groundwater wells near locations with inland ClNa salt mines yield salty water ?

Good day.

If coastal cities/islands implemented parallel water supplies using seawater for mostly toilet supply merging flow to same current sewer systems; what would happen to typical sewage treatment plants ?  Can they deal with seawater or needs to be a different treatment ?

If this has to be in some chemistry forum, please move.

The guy on the video does the onion chopping almost as well as me, but it is fine, he will get trough the learning curve...

Thanks for the suggestions above.  The addition of egg, bread crumbs, corn meal... is not what I see at a 'fast food' drooly hamburger.  There has to be a trick somewhere.  Perhaps mister MacDonald and friends know.

Do I open another thread for how to successfully stick grated garlic to frying/fried potatoes ? or add it here ?  In USA they do not know what fried potatoes are unless you say french fries...

It is skidding off-topic into pancakes +...

Will not do it by keyboard  nor asking to nor buying one of these --- > https://www.youtube.com/watch?v=vPTcIutsoTg&ab_channel=LiveScience

Hello.  

I buy some ground meat.  Add some salt and pepper, sometimes chopped onions, form the patties.  Everything falls apart on the frying pan.   More when flipping.

If it was a barbecue grill, it would all fall in pieces into the gaps.   What is the trick to keep it in one piece ?  😟  

Regards.

Lenz law shown here ---> https://www.youtube.com/watch?v=N7tIi71-AjA    

How to, where to, probe, measure, confirm a voltage presence of the eddy current as in the copper pipe shown above ? 

Hello.

There is stony and metallic meteorites with all their sub-types and in-between compositions.  Could these differences correspond to the crust, mantle, core and in-between portions of exploded/collided celestial bodies ?

In other words, do stony meteorites come from geological crusts, iron ones from core fragments ?

Link containing the image ---> https://www.nasa.gov/image-feature/the-mountainous-shoreline-of-sputnik-planum

Others ---> https://www.ecosia.org/images?q=sputnik planum

And a few more ---> https://en.wikipedia.org/wiki/Sputnik_Planitia

In my ignorance,  did not know until today, Pluto had already been photographed several years ago.  In case someone else has not seen it before, am attaching an image of its surface found on the web :

- Widht is 50 miles -  Shoreline of Sputnik planum. By the telescopic Long Range Reconnaissance Imager (LORRI) aboard New Horizons, 14 July 2015.

Enjoy.

Hi.

Read somewhere that explosions or collisions of stars created much of the minerals that traveled trough space until stroke earth creating the deposits mined today.

Is it reasonable to believe all planets and moons that existed then and in the same neighborhood received a similar 'rain of imported' minerals/elements ?  Can soil similarities among planets tell they were nearby at that time; and dissimilarities mean they were then far apart ?

Handset symbol  📞  📞  📡  📡

In 'utilities'  as 'characters'  -  'objects'

Greetings.

A couple of sewing needles or pins pressing onto lead solder blobs can provide decent contact to recharge a lithium cell.  No mysteries there.

If the contraption will be used under sea water after recharged, and some sort of gel covers the contact blobs; discharging and corrosion could be avoided.   What product can allow piercing to reach contact and when pins are retracted, be a decent insulating closure ?  Am thinking of something like a silicone sealer that never cures, and does not dissolve in water...  What would you suggest ?

Electrical source----------------->     gel     solder blob

There is no institution that regulates, controls or rules the english language.  So any effort hits a brick wall of public used to say whatever with nothing to obey.

Everyone forgot to say 'gasoline'  or 'laboratory' and a thousand more; mail and male pronounced equal; being laziness and lacking care or respect for the language main causes.