Hawkins & Wale Compound Microscope (circa 1867)


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Ephedrine Movies

Ephedrine Video No. 1 - Ephedrine crystallization is observed under polarized light illumination at a magnification of 10x in this video. Playing time is 7.8 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.29 MB).

Ephedrine Video No. 2 - Ephedrine dissolution is observed under polarized light illumination at a magnification of 10x in this video. Playing time is 8.9 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.70 MB).

Ephedrine Video No. 3 - Ephedrine crystallization is observed under polarized light illumination at a magnification of 10x in this video. Playing time is 5.6 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (2.34 MB).

Ephedrine Video No. 4 - Ephedrine crystallization is observed under polarized light illumination at a magnification of 10x in this video. Playing time is 9.1 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.77 MB).

Ephedrine Video No. 5 - Ephedrine crystallization is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 10.6 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.41 MB).

Ephedrine Video No. 6 - Ephedrine crystallization is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 11.2 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.66 MB).

Ephedrine Video No. 7 - Ephedrine crystallization is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 7.7 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.21 MB).

Ephedrine Video No. 8 - Ephedrine crystallization is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 9.6 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.98 MB).

Ephedrine Video No. 9 - Ephedrine dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 10.2 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.26 MB).

Ephedrine Video No. 10 - Ephedrine dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 9.5 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.97 MB).

Ephedrine Video No. 11 - Ephedrine dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 7.5 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.16 MB).

Ephedrine is a member of the adrenergic bronchodilator class of drugs that serve to open up the bronchial tubes of the lungs. Since the 1920s, synthetic versions of this drug have been used as a bronchodilator and nasal decongestant, and for controlling urinary incontinence. Although ephedrine is too slow acting to treat acute allergic attacks, it replaces epinephrine in nonemergency treatment of allergic reactions.

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