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<p>[QUOTE=&quot;Conder101, post: 2921798, member: 66&quot;]The problem with a hydrogen &quot;coin&quot; would be keeping it in.&nbsp; The hydrogen atom is so small that it will fairly easily diffuse through any plastic holder and be lost.&nbsp; A glass capsule would have a better chance of holding it.&nbsp; Any pressure increase from direct sun exposure would be very slight and would not greatly increase any gas loss.&nbsp; Heat concentration from a magnifying glass effect wouldn&#039;t do anything because hydrogen itself doesn&#039;t burn or explode.&nbsp; You need an open flame or spark plus the presence of oxygen.&nbsp; No oxygen inside the capsule with the hydrogen, no flame/explosion.&nbsp; You could heat it up until the capsule melted and nothing would happen.[/QUOTE]</p><p><br /></p>

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