Toy en hagíois patròs Isido-roy toy Pe-loysio-toy Epistolai anekdotoi = S. Isidori Pelusiotae Epistolae hactenus in-editae : de locis S. Scripturae moribusque formandis ex vaticana pontificis bibliotheca graecè nunc primùm erutae notisque & argumentis illustratae à R.P. And. Schotto ...

Mode of access: Internet.

A musical toy in the form of a boat folio from Kitab fi ma'arifat al-hiyal al-handisaya (the book of knowledge of ingenious mechanical devices) Automata by al-Jazari

11 57/64 in.x 8 35/64 in.; ink, opaque watercolor and gold on paper

Electric toy making for amateurs.

Mode of access: Internet.

Toy en agiois patros emon ephraim toy syroy ta eyriskomena panta = Ephraem Syri Opera omnia : quae exstant Graece, Syriace, Latine, in sex tomos distributa : ad Mss. Codices, Vaticanos aliosque castigata, multis aucta, nova interpretatione, praesationibus, notis ... illustrata : tomus secundus graece, et latine.

Mode of access: Internet.

Eysebioy toy Pamphiloy episkopoy tes en Palaistine Kaisareias, Apodeixeos Biblia Deka = Eusebii Pamphili Caesareae Palaestinae Episcopi, De demonstratione euangelica libri decem : quibus accessere nondum hactenus editi nec visi contra Marcellum Ancyrae Episcopum libri due, De Ecclesiastica Theologia tres omnia studio R.M. Latinè facta, notis illustrata et indicibus loco suo neccessarijs locupletatia.

Mode of access: Internet.

[Iōannoy toy zōnapa Epitome istopiōn] Ioannis Zonarae Epitome historiarum.

Title in Greek at head of t.-p.

Toy en agiois patros emon ephraim toy syroy ta eyriskomena panta = S. P. N. Ephraem Syri Opera omnia : quae exstant Graece, Syriace, Latine, in sex tomos distributa : ad Mss. Codices Vaticanos aliosque castigata, multis aucta, nova interpretatione, praesationibus, notis ... illustrata /

Mode of access: Internet.

Dave Gillanders, UM Swimming, on medal stand for bronze in 200-meter butterfly at 1960 Olympics. Ni Hayes (Aus.) Silver and Mike Toy (U.S.) gold

[L-R: Ni Hayes (Aus), Mike Troy, Dave Gillanders]

The Mrichchakati; or, The toy cart : a drama /

Mode of access: Internet.

Manufacturers' abbreviated guide for age-labeling toys : matching toy characteristics to children's ages.

Mode of access: Internet.

Toy model for a relational formulation of quantum theory

In the absence of an external frame of reference-i.e., in background independent theories such as general relativity-physical degrees of freedom must describe relations between systems. Using a simple model, we investigate how such a relational quantum theory naturally arises by promoting reference systems to the status of dynamical entities. Our goal is twofold. First, we demonstrate using elementary quantum theory how any quantum mechanical experiment admits a purely relational description at a fundamental. Second, we describe how the original non-relational theory approximately emerges from the fully relational theory when reference systems become semi-classical. Our technique is motivated by a Bayesian approach to quantum mechanics, and relies on the noiseless subsystem method of quantum information science used to protect quantum states against undesired noise. The relational theory naturally predicts a fundamental decoherence mechanism, so an arrow of time emerges from a time-symmetric theory. Moreover, our model circumvents the problem of the collapse of the wave packet as the probability interpretation is only ever applied to diagonal density operators. Finally, the physical states of the relational theory can be described in terms of spin networks introduced by Penrose as a combinatorial description of geometry, and widely studied in the loop formulation of quantum gravity. Thus, our simple bottom-up approach (starting from the semiclassical limit to derive the fully relational quantum theory) may offer interesting insights on the low energy limit of quantum gravity.

Toy model to describe the effect of positional blocklike disorder in metamaterials composites

We study theoretically the effect of a new type of blocklike positional disorder on the effective electromagnetic properties of one-dimensional chains of resonant, high-permittivity dielectric particles, where particles are arranged into perfectly well-ordered blocks whose relative position is a random variable. This creates a finite order correlation length that mimics the situation encountered in metamaterials fabricated through self-assembled techniques, whose structures often display short-range order between near neighbors but long-range disorder, due to stacking defects. Using a spectral theory approach combined with a principal component statistical analysis, we study, in the long-wavelength regime, the evolution of the electromagnetic response when the composite filling fraction and the block size are changed. Modifications in key features of the resonant response (amplitude, width, etc.) are investigated, showing a regime transition for a filling fraction around 50%.

Child with progressive toy

General note: Title and date provided by Bettye Lane.