EFTA02706186.pdf
dataset_11 pdf 166.4 KB • Feb 3, 2026 • 2 pages
From: Lesley Groff <lesleyjee@gmail.com>
Sent: Wednesday, December 5, 2012 3:16 PM
To: Epstein Jeffrey
Subject: Fwd: Sundials, DNA, whatever
Attachments: Sundial ljpg; Untitled attachment 00078.htm; Sundial IILjpg; Untitled attachment
00081.htm; Sundial legendjpg; Untitled attachment 00084.htm; EOT Adjustmentjpg;
Untitled attachment 00087.htm; Equation of Time.jpg; Untitled attachment 00090.htm;
Analemma calculation.pdf; Untitled attachment 00093.htm; GCB and LSJ from
Cocounts.jpg; Untitled attachment 00096.htm; LS1 sundial thru telescope.jpg; Untitled
attachment 00099.htm
Begin forwarded message:
From: "McCarthy, Kevin" =It;Kevin.McCarthy@dovermotion..om>
Subject: Sundials, DNA, whatever
Date: December 5, 2012 =:25:33 AM EST
To: "lesley.jee@gmail.com" <lesley.jee@gmail.com>
Lesley: Would you be so =ind as to forward my email to Mr. Epstein? =hanks.
Mr. Epstein: Hi! The other month, I was busy =uilding a nice equatorial sundial on the lawn of our villa on St.
=ohn. Some photos are attached; I CNC engraved the brass time =trip, which is magnetically preloaded against Teflon
glide strips in a =lot in the equatorial arc. To implement the Equation of Time =orrection, you just grab a knob near one
end of the time strip, and =tide it until a wire aligns with the date.
Little St. James is one of =wenty-some islands visible from our villa on a clear day. I keep = 110 mm refractor
and a 320 mm reflector there, and shortly before we =eft, I was startled to spot what is obviously a rather large sundial
of =ours (photo through the 110 mm attached). Very cool! Not suite as accurate as an equatorial dial, of course...
We have a mutual acquaintance =n George Church. I have been collaborating with George for some =ears now
on DNA sequencing; we first commercialized his technology with =he Polonator, and have just completed a radical re-
architecting of the =ystem. The new "H" sequencer is still undergoing its initial =hakeout, but we expect it to deliver a
30X whole human genome for well =nder $500, and to sequence nearly 1e12 bases per =ay.
I'm curious as to =he boxy building on the summit of LSJ. Might it house a =elescope? I am in the final figuring
stages on a 685 mm =llipsoidal Zerodur primary for a telescope back home. My =ackground is in physics (MIT '75),
although I blew off grad school to =oin my friends on a farm for seven years. I then ran a private =ech company, selling
it in 1999 to a public firm that was promptly "required by the goofy-large conglomerate (Danaher) that I'm still a =art of.
EFTA_R1_02099376
EFTA02706186
I keep a trimaran sailing kayak at Coconuts, and would =ove to sail over some time to check out Little St. James,
and "rap" =in the 70's sense). Our next scheduled visits are January =2-24, April 6-21, and most of October. Other dates
are flexible, =lthough our villa is rented when we aren't there. If you are up =or a get-together sometime, let me know.
All the =est,
Kevin =cCarthy
Chief Technology =fficer
Dover
159 Swanson Road
Boxborough, =A 01719
603-966-7432 =cell)
www.dovermotion.com <http://www.dovermotion.com>
www.polonator.org <http://www.polonator.org>
Please be advised that =his email may contain confidential information. If you are not the =ntended recipient,
please notify us by email by replying to the sender =nd delete this message. The sender disclaims that the content of this
=mail constitutes an offer to enter into, or the acceptance of, any =greement; provided that the foregoing does not
invalidate the binding =ffect of any digital or other electronic reproduction of a manual =ignature that is included in any
=ttachment.
2
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EFTA02706187
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- Document ID
- 203da72e-d21f-4d97-aa76-bc89821c13ba
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- dataset_11/EFTA02706186.pdf
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- Created
- Feb 3, 2026