Videos uploaded by user “AlastairWright”
Smiling in a Jar
Gretchen Worden of the Mutter Museum interviewed by Eroll Morris
Views: 797 AlastairWright
1915 X-ray coil powering a Puluj radiometer tube
McIntosh No2 X-ray and high frequency treatment coil powering a Puluj electrical radiometer tube.
Views: 10773 AlastairWright
Epic Street Battle, Sheffield Tree Protests 12th December 2017
I'm questioning the private security company about why I have to leave the barriered area they have just erected. After consulting with some of the other protesters I made the decision to leave.
Views: 2134 AlastairWright
Tonisator, The Movie
Views: 1606 AlastairWright
Harry Epworth Allen paintings, Antiques Roadshow April 2013
Two of Harry Epworth Allen's Irish Landscape paintings done in egg tempera, which is pigment added to egg yolk. Prior to the adoption of oil painting in the late 1400s all paintings were done in egg tempera. Harry Epworth Allen (1894-1958) was born in and lived all his life in Sheffield. http://en.wikipedia.org/wiki/Harry_Epworth_Allen
Views: 4584 AlastairWright
Greinacher Tube, Jacobs Ladder in a partial vacuum
Greinacher Tube, Jacobs Ladder in a vacuum
Views: 2593 AlastairWright
Uranium glass De La Rive tube
Uranium glass De La Rive tube, powered by an 1895 Newton Apps induction coil
Views: 14687 AlastairWright
Crookes Electric Radiometer circa 1880
One of Crookes own designs. This is a very early tube dating from 1880 to 1890. The vanes are the cathode and each aluminium paddle has one side coated with mica. Crookes theory was that the radiant matter (electrons) that are emitted from the metal side of the paddle create a mechanical reaction driving the paddle round. JJ Thomson later calculated that the force of the electrons would only be enough to turn the paddle one revolution per minute, so concluded that the paddle turns by heating of the vanes as in a non-electrical radiometer.
Views: 3815 AlastairWright
Geissler tube Rotator 2
French Geissler tube rotator circa 1900.
Views: 15232 AlastairWright
Mendocino Motor - solar powered, magnetically levitated !
With thanks to Tom Vales who made this one and sells the kits - http://stelmos-fire.com/mendocinomotor.html
Views: 305942 AlastairWright
Geissler Rotator
Geissler tube rotator - the Victorians loved these
Views: 14743 AlastairWright
Puluj ( Crookes ) Tubes - windmill and radiometer
Puluj Tubes from around 1900 working. The heating action of the electrons makes the paddles go round in the same way the heat from sunlight makes a solar radiometer turn. These would commonly be called Crookes tubes, more correctly they are called Puluj tubes in all the old catalogues.
Views: 62108 AlastairWright
Crookes Maltese Cross tube
The cathode rays hit the glass and make it fluoresce green. The shadow of the metal maltese cross glows more vividly than the surrounding glass when the hinged metal cross is flipped down as the fresh non-bombarded glass glows brighter.
Views: 156622 AlastairWright
Crookes fluorescent and phosphorecent minerals tube
Crookes tube to show fluorescent and phosphorescent minerals, coral and shells glowing under cathode rays.
Views: 46868 AlastairWright
Geissler tubes
Devil head tube with uranium glass. Double fluid filled tube with two different fluids. Upright tube with fluorescent fluid and a uranium glass spiral.
Views: 15988 AlastairWright
Sheffield Tree Protests - Street Poet, Silver Hill Rd, Bunny under tree.
Benoit Benz Compin performing "They Call Him Bob" Bob being the supervisor in charge here. Soon after they all left with the tree undamaged.
Views: 284 AlastairWright
Crookes Railway tube
Invented in 1879 by Sir William Crookes. The tube is highly evacuated and when powered the electrons heat the paddles which then turn and make the fly travel up to the end of the tube on the glass rails. When the polarity is reversed the paddles travel back the other way. There's coloured phosphor spots on the mica paddles just to make it pretty!
Views: 28064 AlastairWright
1890's Newton Apps induction coil
Newton Apps induction coil circa 1895. Sparking 18 cm
Views: 2527 AlastairWright
Crookes heating effect tube
Platinum foil gets red hot from the cathode rays focussed on it.
Views: 6905 AlastairWright
Crookes Y tube
Very rare Y shaped Crookes tube with three terminals to show that the cathode rays are produced perpendicular to the terminal and travel in straight lines.
Views: 360598 AlastairWright
Fischer Model K
Views: 151 AlastairWright
Aubry's Tonsillotome - a fiendish 19th century device for tonsil removal (detail)
Aubry's Tonsillotome - detail of this fiendish 19th century device for tonsil removal
Views: 397 AlastairWright
Views: 134 AlastairWright
Views: 116 AlastairWright
Fischer Model GC
Views: 73 AlastairWright
Aubry's Tonsillotome - a fiendish 19th century device for tonsil removal
Aubry's Tonsillotome - a fiendish 19th century device for tonsil removal
Views: 270 AlastairWright

Pubg Forums Xbox Can Be Fun for Everyone

Pubg Forums Xbox - Dead or Alive?

You need to compose an interesting and appealing profile, post a decent and recent photo and so forth. If youve got specific feedback for things we might change to create the system better, weve got forums for that. Our forums and internet chat area are a terrific place to meet and interact with different members.
An internet dating site devoted to health buffs for example, is pretty much enjoy a health club, but for the treadmill of course. If you prefer the most accurate price check, conduct the initial two methods and youll be helpful to go. There are several tier lists to help you decide which heroes you ought to be placing your time into, and thus dont take the word of the very first list you read. Instead, youre restricted to the amount of weapons and items you may carry at the same time. Especially if the quantity of players playing from PC proceeds to increase.
Pubg Forums Xbox Can Be Fun for Everyone

Its possible for you to reconnect at any point in a match youve left provided that you dont have a leaver penalty. There is no purpose in setting a question which everyone will know the response to. Another very good suggestion for your writing quiz questions is to attempt to keep the questions interesting. There are lots of totally free quiz questions online, but nevertheless, it can have a very long time to compose a great quiz and guarantee the answers are accurate so it can be well worth buying a pre-made quiz online. If a person doesnt know the answer, they ought to want to understand.
You will need to talk with your friend. If its not, attempt to stay friends with your initial friend. Not everybody is likely to get along so concentrate on the folks who have proven to be your true friend. In life, it is quite normal for individuals to have different friends and see them on various occasions.
If you disconnect during a competitive match, attempt to reconnect as soon as possible and complete the match. Of course whenever youre building the ideal team youll want the best heroes in the game. All it needed was a group of lemmings ready to have a beating.
Games unfortunately are a luxury and not a necessity, so they are most likely likely to be among the very first things to think about when deciding where you have to cut back on so far as your budget is concerned. In case you go over 100, youre out of the game. Finally, the play constricts to a very small area for the last showdown between the rest of the players there can only be one winner! Some players may discover that reinstalling PUBG is also essential. Many players can resolve their crashes by temporarily removing all graphics card overclocking. It is possible to always try out working with your fellow players and us Blue Posters here in order to get the reason for your tech issue.
The Death of Pubg Forums Xbox

Unlike PUBG, youre in a position to carry over two guns. Pressing Y cycles through your three guns, so if you would like to change from your secondary gun to your primary, you want to switch twice as a way to cycle via your pistol. In addition, all weapons are removed from the starting locations.