Posts: revhen | Ugly Hedgehog

I am looking forward to capturing April's Solar Eclipse on "film".
Erie, PA is my current thinking to position myself in the path of totality.
The objective (I am a physicist) is to observe the deflection of star images
as the disc of the sun passes near, over, and away from their normal astronomical positions.
According to Steven Weinberg's book on General Relativity, the deflection is seconds of arc.
Are there ready solutions for this? If not, what help is available?

Well, Eddington's math and understanding of Einstein's general theory of relativity are beyond my comprehension. Eddington felt that he had demonstrated the gravitational "bending" of light by gravity thus stars would out of place if their light passed close to the sun. His he claimed his crude instruments had demonstrated this bending. Later more sophisticated studies supported Eddington's find. Do you want to "challenge" his well-supported findings by doing the same experiment? I fear this would be an exercise of futility.

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Jan 16, 2024 17:28:09 #

(Main Photography Discussion)

POLL - Curious, do you shoot RAW, JPEG, or BOTH?

Longshadow wrote:

The question was prompted by a comment in another thread.

INSTRUCTIONS: Post only ONE WORD: "RAW"; "JPEG"; or "BOTH".
No dissertations, no explanations as to why, no opinions, no recommendations,...
no matter how badly you feel you have to.

ANY response other than ONE of the three words will not be tallied.

JPEG

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Jan 12, 2024 18:28:46 #

(Main Photography Discussion)

Pics Have Disappeared

Sometimes files get "deleted" accidentally but all that means is that one number or letter (usually the first one) gets changed but is still there although you can't see it. Get ahold of a competent computer specialist and see if he/she can resurrect them. They are usually there for awhile until written over by later files. So look into this right away. Now if you were a crook and erased the files and deliberately overwrote them the FBI and other such agencies can bring them up! But no such luck for you I do hope!

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Jan 11, 2024 22:26:49 #

(General Chit-Chat (non-photography talk))

Was there a correct answer?

You have to sit back and OBSERVE.

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Jan 10, 2024 13:15:14 #

(Main Photography Discussion)

An applicable quote for me.

Architect1776 wrote:

Why at 74 is there any stress at all in learning something new?
Age should never be a factor to learning.

At 90 I'm still learning. But I see no need for me to go mirrorless. Yet.

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Jan 10, 2024 13:10:08 #

(Main Photography Discussion)

An applicable quote for me.

Silverhair2048 wrote:

"Epictetus: 'He is a wise man who does not gr... (show quote)

Amen!

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Jan 8, 2024 14:06:28 #

(General Chit-Chat (non-photography talk))

Car Heater

Carl1024 wrote:

heater is used on rainy days 2 clear the windshield?

Sic semper Hawaii!

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Jan 8, 2024 14:05:03 #

(General Chit-Chat (non-photography talk))

Car Heater

jerryc41 wrote:

When you want the most from your car's air conditioner, you set it to Recirculate. Wouldn't the same thing work with the car's heater? Instead of heating the 20° air from outside to 70°, the heater would be maintaining the 70° air inside the car. Of, course, you could switch it to Fresh Air occasionally.

Of course. Both hot summer when on AC and cold winter when on heater. I've been told that when you turn to recirculate some air form outside is let in so you're not totally shut off from fresh aid.

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Jan 7, 2024 18:28:59 #

(Main Photography Discussion)

suggestions for the pacific NW in july folks?

bsprague wrote:

I looked it up: https://rockymtnrefl.com/photogra... (show quote)

Yes Victoria BC Canada! Quaint. And above all Bouchart Gardens. Unblieveably beautiful.

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Jan 6, 2024 13:43:14 #

(Main Photography Discussion)

suggestions for the pacific NW in july folks?