NCARNational Center forAtmospheric Research

Staff Notes

No. 66September 22, 1967

Father Paul Luger, of the Physics Department of Seattle University,recently arrived at the NCAR Laboratory to begin a one-month visit with

George Hidy. With him he brought a rather unusual piece of lugg-ge, a

diffusion cloud chamber.

During his stay at NCAR, Father Luger will be using the chamber ina series of cloud experiments. When the cloud chamber is in operation,methanol vapor is released inside the chamber, and mechanical refriger-

ation is used to create a supersaturated condition. Any high-energy

subatomic particle that passes through the chamber will leave a trail of

ions along its path, and in the supersaturated environment these ions

act as condensation nuclei for droplets of methanol. A bright light is

used to make the path of the particle visible by illuminating the trail

of droplets.

When cloud chambers are used to study cosmic rays or other parti-cles, the curtains, clouds, and precipitation that tend to form in the

chamber are simply a source of annoyance to the experimenter. For

Father Luger and Dr. Hidy, these phenomena are the principal object of

interest. They are studying the role of condensation nuclei, such as

the ions along the particle paths, in the formation of clouds and pre-

cipitation.

NCAR staff members who are interested in the cloud chamber are in-vited to pay Father Luger a visit in room 047.

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* NCAR Staff Notes/No. 66Sheet 2

Technical Note NCAR-TN-32, Technical Control of Balloon Packages, byErnie Lichfield and Neil Carlson, is now available from the publicationsdepartment. If you want a copy, send a note to Kay Redman. The Summer1967 issue of Balloon Flight Record and Scheduled Balloon Flights, whichwas formerly published in Facilities for Atmospheric Research and now isissued as a separate publication, is also available. If you want a copyof this one, drop Kay a note and also let her know if you want your nameplaced on the list to receive future issues.

The Computing Facility has acquired a computer data set containing168 monthly mean analyses of Pacific Ocean sea surface temperatures forthe period 1949 through 1962. These analyses, from the Bureau of Commer-cial Fisheries, are on a grid that covers the area north of 20*S. Forfurther information contact Roy Jenne, extension 526.

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New telephone extensions: John Kennedy - 280, Valerie Flick - 281,Anne (Scott) Garrelts - 285, Bob Brown - 515, and Vonda Giesey - 516.

If you would be interested in forming an NCAR soccer team or teams,contact Dave Houghton at extension 676 or Dick Canfield at HAO exten-sion 47.

The NCAR supply room has an assortment of furniture items availablefor use. If you can use either a four, six, or twelve hat capacity coatrack, a two drawer combination safe, swivel, straight, or student typechairs, a small table or large wastebasket, go down to room 42 and takeyour pick.

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O NCAR Staff Notes/No. 66Sheet 3

Calendar NotesSeptember 25 thru 29, 1967

MONDAY, September 25

9 Luncheon meeting of the Russian Language Series conducted by Dr. K.Spurny.

Noon - Monday

Noon - ThursdayNCAR Laboratory, Damon Room

TUESDAY, September 26

Open

WEDNESDAY, September 27

* Special Seminar -- The Application of Liaponov Techniques to Analyz-ing Non-Linear Differential Equations," Dr. Ronald L. Drake, Depart-ment of Mathematics, Drexel Institute of Technology, Philadelphia,

* Pennsylvania.

1:30 pmNCAR Laboratory, Seminar Room

THURSDAY, September 28

" Luncheon meeting of the Russian Language Series.

NoonNCAR Laboratory, Damon Room

" Noon Movie -- Double Feature! Rendezvous at Lake Constance. Thistravel film takes you high in the Alps, to one of Southern Germany'smost breathtaking sights -- Lake Constance. Color. 35 mins.The History of the Helicopter. A story of rotary wing aircraftfrom the first visionary drawings of Leonardo da Vinci to today'smodern passenger-carrying giants. Black/White. 20 mins.

12:10 pmNCAR Laboratory, Seminar Room

* HAO Seminar -- Thermal Properties of the Interplanetary Medium, Dr.A. J. Hundhausen, Los Alamos Scientific Laboratory, New Mexico.

11:00 amHAO/AG Classroom 138

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NCAR Staff Notes/No. 66Sheet 4

FRIDAY, September 29

* Mesa Chowder and Molecule Society Luncheon meeting.

NoonNCAR Laboratory, Damon Room

* Noon Movie -- Double Feature! Rendezvous at Lake Constance, color,35 minutes, and The History of the Helicopter, black/white, 20 mins.

12:10 pmHAO/AG Classroom 138

* Hollow Square -- The Coronas of Exploding Stars, John M. Malville.Stellar explosions create million degree coronas which dwarf thesun's corona by comparison. Observations of these coronas willbe discussed in relation to the solar corona.

3:45 pm Refreshments4:00 pm TalkNCAR Laboratory, Seminar Room

Visitors

Here: Drake, Dr. Ronald L., Department of Mathematics, Drexel Instituteof Technology, Philadelphia, Pennsylvania, September 26-27.--G. M. Hidy

Moriyama, Dr. F., Solar Physics Division, Tokyo AstronomicalObservatory, Mitaka (near Tokyo), Japan, September 29 for onemonth.-- W. Curtis and J. Firor

Announcements for this listing may be called to Carol Forney, ext. 101.Wednesday, 5:00 pm is the deadline for items to be included in the Cal-endar for the following week.

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T-aff CX-1EOZq - Includes: Entree,Vegetable, Potato, Bread and Butter

.LA, i &C JR.TE 13MONDAY, 25 September

Soup: Cream of Onion

" Hand Carved: Corned Beef" Baked Stuffed Bell Pepper with

Creole Sauce" Tuna Fish and Noodles au gratin

TUESDAY, 26 September

Soup: Chicken with Rice

* Hand Carved: Broiled Flank Steak" Hungarian Goulash with Buttered

Noodles* Barbequed Pork Ribs

WEDNESDAY, 27 September

Soup: Vegetable Beef

Hand Carved: Baked Ham

* Complete Luncheon:Roast Leg of Pork with DressingCranberry SauceMashed PotatoesButtered PeasRoll and ButterApple CobblerCoffee or Tea

*Scalloped Potatoes and Ham

THURSDAY, 28 September

Soup: Lentil

* Hand Carved: Roast Round of Beef0 Grilled Young Beef Liver with Onions0 Link Sausages and Cream Baked Beans

FRIDAY, 29 September

Soup: ClamChowder

" Hand Carved: Roast Breast of Turkey" Hamburger Steak with Brown Gravy

S0 Broiled Halibut Steak withTartar Sauce

" Baked Macaroni and Cheese

55(,

S0c45o

15%

5o,

15o,

55c.

45o,

15o,

5ft

15

55c

50c

BA.W DIC E I25* to 50*

93.A& 1 .A.DS 15* 25*

Vegetable or Potato 15*Bread and Butter 10*

3ESSE15P.T 15* to 25c

Cake Pie Ice CreamPuddings & Cobblers

:BEMVE I~.&AGEQ 8 G10*

Coffee, Tea, MilkHot ChocolateRefill Coffee No Charge

80c.

7 Sc.70o,

80o,

$100Tax

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70o,

7 0

8 0

7 Sc-7 05c

St70cJCOtTIIErTAtd

Donut 10c Danish Roll 15*

Orange Juice 15C

Toast & Butter 10*

1/2 Grapefruit 20c

Preserved Fruit 15*

Stewed Fruit 15*

Cereal 20c

1 Egg 200 2 Eggs 354

Bacon Sausage 350

Ham 45c

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