"S . grandiflorus " is an annual or biennual of upto ?m high with one, two or three leaflike bracts subtending each cluster of flowerheads and these are spiny dentate.
22.
Black dashed line shows the cross-section . 1 position of the main axis; 2 cross-section through the lateral flower; 3 bracteole; 4 subtending bract.
23.
"S . maculatus " is an annual of up to 1?m high, there are more than five leaflike bracts subtending each cluster of flowerhead, and these bracts are pinnately divided.
24.
The telescope was originally equipped with a thermoelectrically cooled SBIG ST-10XME CCD camera with 2184x1472 pixels each 6.8 micrometres wide, each subtending slightly more than one arcsec at the telescope prime focus.
25.
Maybe something like : " I've spotted a sharp edge subtending 12 degrees slanted at 45 degrees to the horizontal, moving left-to-right at 1.2 degrees per second ".
26.
Heider, et al . ( 2002 ) have found that neurons involving V1, V2, and V3 can detect stereoscopic illusory contours; they found that stereoscopic stimuli subtending up to 8?can activate these neurons.
27.
:" Furthermore it is clear ( "'manifestum est "') that when the chord subtending an arc has been given, that chord too can be found which subtends the rest of the semicircle ."
28.
Some clinics do not have 6 m eye lanes available, and either a half-size chart subtending the same angles at 3 m, or a reversed chart projected and viewed by a mirror is used to achieve the correct sized letters.
29.
On the other hand, the geodesic between these points is a great circle arc through the pole subtending an angle of 60?at the center : the length of this arc is one sixth of the great circle circumference, about 6, 672 km.
30.
"S . hispanicus " is an annual, biennual or perennial of upto 1?m high and it also has one, two or three spiny dentate leaflike bracts subtending each cluster of flowerheads and the yellow, orange or white florets also lack black hairs.
