1.
LS EXTERIOR, CORNING PLANT
0.04

2.
CU WINDOW TIPPING FORWARD
0.09

3.
MS BLOWTORCH ON WINDOW
0.12

4.
CU WINDOW INTO ICED WATER
0.16

5.
CU DROPPING STEEL BALL ON WINDOW
0.20

6.
MS WINDOW IN MOUNT
0.23

7.
STILL-PAN CAPSULE FROM WINDOW TO ANTENNAE SHIELDS
0.30

8.
MS TAKING SHIELD FROM OVEN
0.33

9.
MS MEASURING ACCURACY OF SHIELD
0.36

10.
MS BIG RESISTOR
0.40

11.
CU SMALL RESISTORS
0.43

12.
STILL-CAPSULE ALOFT
0.46

13.
ZOOM-TRACKING ANTENNAE
0.49

14.
MS AND PAN SPACE FLIGHT CENTRE, WASHINGTON
0.54



Initials EHR/V/JH/BB



Script is copyright Reuters Limited. All rights reserved

Background: AT THE CORNING GLASS WORKS IN NEW YORK, TESTS ARE CURRENTLY BEING CARRIED OUT ON SPECIAL GLASS WINDOWS LIKE THAT THROUGH WHICH UNITED STATES ASTRONAUT JOHN GLENN WILL VIEW THE EARTH AND SPACE WHEN HE MAKES HIS HISTORIC FLIGHT, PLANNED JAN.27 FROM CAPE CANAVERAL.

WINDOWS MUST WITHSTAND A TEMPERATURE 1,000 DEGREES HOTTER THAN A KITCHEN OVEN - AS WELL AS THE VIOLENT TEMPERATURE CHANGES ENCOUNTERED AS THE CAPSULE RE-ENTERS THE EARTH'S ATMOSPHERE.

THE WINDOW MUST ALSO PROTECT THE ASTRONAUT AGAINST THE GREAT IMPACT OF LANDING.THE SAME GLASS IS ALSO USED TO MAKE SHIELDS FOR THE ANTENNAE THROUGH WHICH INFORMATION WILL BE RELAYED FROM CAPSULE TO SATELLITE TRACKING STATIONS AROUND THE GLOBE.

AND GLASS RESISTORS - COMPARED HERE FOR SIZE WITH THOSE OF A TYPICAL RADIO OR TELEVISION SET - WILL HELP TO SPEED COMMUNICATIONS BETWEEN TRACKING STATIONS AND GODDARD SPACE FLIGHT CENTRE, NEAR WASHINGTON, D.C.