Surface cracks in the upper part of the slope were noted as far back as the summer of 1994.
12.
To harden the paint, the canvasses were heated for some hours, then coated with varnish to created surface cracks.
13.
To harden the paint, the canvasses were heated for some hours, then coated with varnish to create surface cracks.
14.
Heat checking is when surface cracks occur on the die due to a large temperature change on every cycle.
15.
This not only serves to initiate surface cracks but ( see below ) actually modifies the crack growth process.
16.
The artificial flaw was in the form of a surface crack which was much larger than other flaws in a specimen.
17.
Small surface cracks are thought to have formed during multiple wetting and drying events, so they are evidence that the groundwater rose and fell.
18.
One method often used to help conceal the smaller surface cracks that may appear is the application of one of a variety of pre-mixed acrylic finishes.
19.
The 2 \-inch ( 5.7-cm ) metal ball had a surface crack engineers feared might send fragments into a main engine during liftoff, with potentially catastrophic results.
20.
The surface crack was in a 2.25-inch ( 5.7-centimeter ) metal ball located in a liquid oxygen line; the sphere allows the line to flex at the joint.
