There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.
Accounts which solely post advertisements, or persistently post them may be terminated.
starman2112 , 6 months ago I wonder if liquid hydrogen has a taste. Like, if we could survive in a pressure chamber that can liquify hydrogen at room temp
I wonder if liquid hydrogen has a taste. Like, if we could survive in a pressure chamber that can liquify hydrogen at room temp