This 7-foot diameter balloon gave the only regular met report in the world from 20 miles up.
LS. Balloon filling shed. MS. Balloon being inflated. CU. Balloon being unpacked. LS. of filled balloon in shed. MS. Man adjusting Oxygen cylinders. LS. Balloon being released and sailing into air. CU. Man looking up. Various shots of man seated at recording apparatus, recording details. Various shots of man assembling Radio-sonde apparatus. MS. Radar aerials revolving. CU sign "Meteorological Office, Air Ministry, No Admittance"
Note: the cameraman on this story (P. Whitaker) was obviously a bit of a scientist at heart and there are 7 pages of dope sheets complete with diagrams as to how this balloon works.